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annotate liboctave/array/Array.cc @ 20676:16b9ec39ff46

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Return empty matrix when linspace called with 0 points (bug #45820) * NEWS: Announce change. * data.cc (Flinspace): Verify input N is scalar. Verify inputs BASE, LIMIT are scalar/vectors. Add BIST tests for input validation, complex values, class of output, Matlab compatibility. Clarify documentation about vector inputs. * CMatrix.cc, CRowVector.cc, dMatrix.cc, dRowVector.cc, fCMatrix.cc, fCRowVector.cc, fMatrix.cc, fRowVector.cc: Return empty matrix when N < 1.
author Rik <rik@octave.org>
date Thu, 27 Aug 2015 13:12:21 -0700
parents 41d19a6ef55a
children dd6345fd8a97
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1 // Template array classes
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2 /*
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3
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4 Copyright (C) 1993-2015 John W. Eaton
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5 Copyright (C) 2008-2009 Jaroslav Hajek
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6 Copyright (C) 2009 VZLU Prague
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7
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8 This file is part of Octave.
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9
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10 Octave is free software; you can redistribute it and/or modify it
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11 under the terms of the GNU General Public License as published by the
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12 Free Software Foundation; either version 3 of the License, or (at your
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13 option) any later version.
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14
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15 Octave is distributed in the hope that it will be useful, but WITHOUT
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16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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17 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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18 for more details.
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19
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20 You should have received a copy of the GNU General Public License
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21 along with Octave; see the file COPYING. If not, see
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22 <http://www.gnu.org/licenses/>.
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23
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24 */
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25
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26 #ifdef HAVE_CONFIG_H
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27 #include <config.h>
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28 #endif
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29
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30 #include <cassert>
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31
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32 #include <iostream>
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33 #include <sstream>
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34 #include <vector>
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35 #include <algorithm>
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36 #include <new>
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37
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38 #include "Array.h"
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39 #include "Array-util.h"
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40 #include "idx-vector.h"
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41 #include "lo-error.h"
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42 #include "oct-locbuf.h"
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43
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44 // One dimensional array class. Handles the reference counting for
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45 // all the derived classes.
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46
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47 template <class T>
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48 Array<T>::Array (const Array<T>& a, const dim_vector& dv)
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49 : dimensions (dv), rep (a.rep),
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50 slice_data (a.slice_data), slice_len (a.slice_len)
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51 {
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52 if (dimensions.safe_numel () != a.numel ())
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53 {
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54 std::string dimensions_str = a.dimensions.str ();
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55 std::string new_dims_str = dimensions.str ();
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56
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57 (*current_liboctave_error_handler)
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58 ("reshape: can't reshape %s array to %s array",
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59 dimensions_str.c_str (), new_dims_str.c_str ());
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60 }
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61
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62 // This goes here because if an exception is thrown by the above,
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63 // destructor will be never called.
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64 rep->count++;
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65 dimensions.chop_trailing_singletons ();
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66 }
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67
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68 template <class T>
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69 void
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70 Array<T>::fill (const T& val)
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71 {
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72 if (rep->count > 1)
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73 {
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74 --rep->count;
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75 rep = new ArrayRep (numel (), val);
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76 slice_data = rep->data;
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77 }
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78 else
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79 std::fill_n (slice_data, slice_len, val);
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80 }
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81
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82 template <class T>
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83 void
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84 Array<T>::clear (void)
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85 {
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86 if (--rep->count == 0)
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87 delete rep;
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88
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89 rep = nil_rep ();
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90 rep->count++;
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91 slice_data = rep->data;
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92 slice_len = rep->len;
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93
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94 dimensions = dim_vector ();
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95 }
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96
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97 template <class T>
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98 void
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99 Array<T>::clear (const dim_vector& dv)
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100 {
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101 if (--rep->count == 0)
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102 delete rep;
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103
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104 rep = new ArrayRep (dv.safe_numel ());
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105 slice_data = rep->data;
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106 slice_len = rep->len;
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107
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108 dimensions = dv;
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109 dimensions.chop_trailing_singletons ();
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110 }
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111
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112 template <class T>
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113 Array<T>
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114 Array<T>::squeeze (void) const
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115 {
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116 Array<T> retval = *this;
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117
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118 if (ndims () > 2)
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119 {
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120 bool dims_changed = false;
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121
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122 dim_vector new_dimensions = dimensions;
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123
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124 int k = 0;
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125
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126 for (int i = 0; i < ndims (); i++)
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127 {
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128 if (dimensions(i) == 1)
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129 dims_changed = true;
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130 else
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131 new_dimensions(k++) = dimensions(i);
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132 }
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133
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134 if (dims_changed)
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135 {
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136 switch (k)
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137 {
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138 case 0:
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139 new_dimensions = dim_vector (1, 1);
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140 break;
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141
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142 case 1:
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143 {
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144 octave_idx_type tmp = new_dimensions(0);
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145
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146 new_dimensions.resize (2);
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147
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148 new_dimensions(0) = tmp;
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149 new_dimensions(1) = 1;
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150 }
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151 break;
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152
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153 default:
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154 new_dimensions.resize (k);
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155 break;
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156 }
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157 }
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158
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159 retval = Array<T> (*this, new_dimensions);
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160 }
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161
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162 return retval;
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163 }
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164
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165 template <class T>
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166 octave_idx_type
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167 Array<T>::compute_index (octave_idx_type i, octave_idx_type j) const
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168 {
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169 return ::compute_index (i, j, dimensions);
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170 }
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171
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172 template <class T>
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173 octave_idx_type
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174 Array<T>::compute_index (octave_idx_type i, octave_idx_type j,
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175 octave_idx_type k) const
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176 {
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177 return ::compute_index (i, j, k, dimensions);
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178 }
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179
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180 template <class T>
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181 octave_idx_type
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182 Array<T>::compute_index (const Array<octave_idx_type>& ra_idx) const
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183 {
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184 return ::compute_index (ra_idx, dimensions);
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185 }
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186
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187 template <class T>
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188 T&
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189 Array<T>::checkelem (octave_idx_type n)
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190 {
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191 // Do checks directly to avoid recomputing slice_len.
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192 if (n < 0)
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193 gripe_invalid_index ();
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194 if (n >= slice_len)
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195 gripe_index_out_of_range (1, 1, n+1, slice_len);
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196
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197 return elem (n);
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198 }
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199
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200 template <class T>
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201 T&
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202 Array<T>::checkelem (octave_idx_type i, octave_idx_type j)
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203 {
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204 return elem (compute_index (i, j));
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205 }
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206
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207 template <class T>
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208 T&
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209 Array<T>::checkelem (octave_idx_type i, octave_idx_type j, octave_idx_type k)
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210 {
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211 return elem (compute_index (i, j, k));
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212 }
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213
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214 template <class T>
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215 T&
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216 Array<T>::checkelem (const Array<octave_idx_type>& ra_idx)
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217 {
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218 return elem (compute_index (ra_idx));
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219 }
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220
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221 template <class T>
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222 typename Array<T>::crefT
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223 Array<T>::checkelem (octave_idx_type n) const
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224 {
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225 // Do checks directly to avoid recomputing slice_len.
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226 if (n < 0)
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227 gripe_invalid_index ();
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228 if (n >= slice_len)
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229 gripe_index_out_of_range (1, 1, n+1, slice_len);
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230
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231 return elem (n);
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232 }
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233
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234 template <class T>
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235 typename Array<T>::crefT
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236 Array<T>::checkelem (octave_idx_type i, octave_idx_type j) const
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237 {
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238 return elem (compute_index (i, j));
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239 }
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240
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241 template <class T>
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242 typename Array<T>::crefT
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243 Array<T>::checkelem (octave_idx_type i, octave_idx_type j,
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244 octave_idx_type k) const
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245 {
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246 return elem (compute_index (i, j, k));
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247 }
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248
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249 template <class T>
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250 typename Array<T>::crefT
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251 Array<T>::checkelem (const Array<octave_idx_type>& ra_idx) const
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252 {
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253 return elem (compute_index (ra_idx));
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254 }
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255
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256 template <class T>
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257 Array<T>
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258 Array<T>::column (octave_idx_type k) const
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259 {
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260 octave_idx_type r = dimensions(0);
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261 #ifdef BOUNDS_CHECKING
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262 if (k < 0 || k > dimensions.numel (1))
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263 gripe_index_out_of_range (2, 2, k+1, dimensions.numel (1));
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264 #endif
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265
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266 return Array<T> (*this, dim_vector (r, 1), k*r, k*r + r);
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267 }
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268
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269 template <class T>
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270 Array<T>
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271 Array<T>::page (octave_idx_type k) const
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272 {
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273 octave_idx_type r = dimensions(0);
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274 octave_idx_type c = dimensions(1);
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275 octave_idx_type p = r*c;
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276 #ifdef BOUNDS_CHECKING
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277 if (k < 0 || k > dimensions.numel (2))
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278 gripe_index_out_of_range (3, 3, k+1, dimensions.numel (2));
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279 #endif
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280
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281 return Array<T> (*this, dim_vector (r, c), k*p, k*p + p);
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282 }
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283
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284 template <class T>
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285 Array<T>
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286 Array<T>::linear_slice (octave_idx_type lo, octave_idx_type up) const
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287 {
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288 #ifdef BOUNDS_CHECKING
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289 if (lo < 0)
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290 gripe_index_out_of_range (1, 1, lo+1, numel ());
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291 if (up > numel ())
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292 gripe_index_out_of_range (1, 1, up, numel ());
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293 #endif
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294 if (up < lo) up = lo;
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295 return Array<T> (*this, dim_vector (up - lo, 1), lo, up);
4567
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe]
jwe
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296 }
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe]
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297
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298 // Helper class for multi-d dimension permuting (generalized transpose).
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299 class rec_permute_helper
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300 {
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301 // STRIDE occupies the last half of the space allocated for dim to
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302 // avoid a double allocation.
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303
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diff changeset
304 int n;
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John W. Eaton <jwe@octave.org>
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305 int top;
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306 octave_idx_type *dim;
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307 octave_idx_type *stride;
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308 bool use_blk;
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309
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diff changeset
310 public:
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311 rec_permute_helper (const dim_vector& dv, const Array<octave_idx_type>& perm)
11507
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312
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313 : n (dv.length ()), top (0), dim (new octave_idx_type [2*n]),
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
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diff changeset
314 stride (dim + n), use_blk (false)
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315 {
20442
a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
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316 assert (n == perm.numel ());
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317
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318 // Get cumulative dimensions.
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319 OCTAVE_LOCAL_BUFFER (octave_idx_type, cdim, n+1);
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diff changeset
320 cdim[0] = 1;
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diff changeset
321 for (int i = 1; i < n+1; i++) cdim[i] = cdim[i-1] * dv(i-1);
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322
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323 // Setup the permuted strides.
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324 for (int k = 0; k < n; k++)
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diff changeset
325 {
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diff changeset
326 int kk = perm(k);
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327 dim[k] = dv(kk);
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328 stride[k] = cdim[kk];
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329 }
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330
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331 // Reduce contiguous runs.
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diff changeset
332 for (int k = 1; k < n; k++)
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Rik <rik@octave.org>
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diff changeset
333 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
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334 if (stride[k] == stride[top]*dim[top])
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diff changeset
335 dim[top] *= dim[k];
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diff changeset
336 else
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diff changeset
337 {
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Rik <rik@octave.org>
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diff changeset
338 top++;
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Rik <rik@octave.org>
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diff changeset
339 dim[top] = dim[k];
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diff changeset
340 stride[top] = stride[k];
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diff changeset
341 }
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Rik <rik@octave.org>
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diff changeset
342 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
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diff changeset
343
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344 // Determine whether we can use block transposes.
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diff changeset
345 use_blk = top >= 1 && stride[1] == 1 && stride[0] == dim[1];
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diff changeset
346
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diff changeset
347 }
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348
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diff changeset
349 ~rec_permute_helper (void) { delete [] dim; }
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350
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351 // Helper method for fast blocked transpose.
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parents: 8920
diff changeset
352 template <class T>
9121
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Jaroslav Hajek <highegg@gmail.com>
parents: 9100
diff changeset
353 static T *
bb62bc406ea7 reuse fast blocked transpose implementation from rec_permute_helper in Array<T>::transpose
Jaroslav Hajek <highegg@gmail.com>
parents: 9100
diff changeset
354 blk_trans (const T *src, T *dest, octave_idx_type nr, octave_idx_type nc)
17769
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diff changeset
355 {
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diff changeset
356 static const octave_idx_type m = 8;
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Rik <rik@octave.org>
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diff changeset
357 OCTAVE_LOCAL_BUFFER (T, blk, m*m);
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diff changeset
358 for (octave_idx_type kr = 0; kr < nr; kr += m)
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diff changeset
359 for (octave_idx_type kc = 0; kc < nc; kc += m)
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Rik <rik@octave.org>
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diff changeset
360 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
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diff changeset
361 octave_idx_type lr = std::min (m, nr - kr);
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diff changeset
362 octave_idx_type lc = std::min (m, nc - kc);
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diff changeset
363 if (lr == m && lc == m)
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Rik <rik@octave.org>
parents: 17744
diff changeset
364 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
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diff changeset
365 const T *ss = src + kc * nr + kr;
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diff changeset
366 for (octave_idx_type j = 0; j < m; j++)
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diff changeset
367 for (octave_idx_type i = 0; i < m; i++)
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Rik <rik@octave.org>
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diff changeset
368 blk[j*m+i] = ss[j*nr + i];
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diff changeset
369 T *dd = dest + kr * nc + kc;
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diff changeset
370 for (octave_idx_type j = 0; j < m; j++)
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diff changeset
371 for (octave_idx_type i = 0; i < m; i++)
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Rik <rik@octave.org>
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diff changeset
372 dd[j*nc+i] = blk[i*m+j];
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diff changeset
373 }
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Rik <rik@octave.org>
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diff changeset
374 else
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Rik <rik@octave.org>
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diff changeset
375 {
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diff changeset
376 const T *ss = src + kc * nr + kr;
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diff changeset
377 for (octave_idx_type j = 0; j < lc; j++)
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Rik <rik@octave.org>
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diff changeset
378 for (octave_idx_type i = 0; i < lr; i++)
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diff changeset
379 blk[j*m+i] = ss[j*nr + i];
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diff changeset
380 T *dd = dest + kr * nc + kc;
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diff changeset
381 for (octave_idx_type j = 0; j < lr; j++)
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diff changeset
382 for (octave_idx_type i = 0; i < lc; i++)
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Rik <rik@octave.org>
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diff changeset
383 dd[j*nc+i] = blk[i*m+j];
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Rik <rik@octave.org>
parents: 17744
diff changeset
384 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
385 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
386
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Rik <rik@octave.org>
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diff changeset
387 return dest + nr*nc;
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diff changeset
388 }
12153
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
389
8410
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Jaroslav Hajek <highegg@gmail.com>
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diff changeset
390 private:
ba24ecd4c019 optimize permute
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parents: 8390
diff changeset
391
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diff changeset
392 // Recursive N-d generalized transpose
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parents: 8390
diff changeset
393 template <class T>
ba24ecd4c019 optimize permute
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diff changeset
394 T *do_permute (const T *src, T *dest, int lev) const
17769
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Rik <rik@octave.org>
parents: 17744
diff changeset
395 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
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diff changeset
396 if (lev == 0)
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Rik <rik@octave.org>
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diff changeset
397 {
18084
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diff changeset
398 octave_idx_type step = stride[0];
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
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diff changeset
399 octave_idx_type len = dim[0];
17769
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diff changeset
400 if (step == 1)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
401 {
19576
af41e41ad28e replace oct-mem.h inline indirections by standard function calls.
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents: 18145
diff changeset
402 std::copy (src, src + len, dest);
17769
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Rik <rik@octave.org>
parents: 17744
diff changeset
403 dest += len;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
404 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
405 else
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
406 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
407 for (octave_idx_type i = 0, j = 0; i < len; i++, j += step)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
408 dest[i] = src[j];
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
409
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
410 dest += len;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
411 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
412 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
413 else if (use_blk && lev == 1)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
414 dest = blk_trans (src, dest, dim[1], dim[0]);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
415 else
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
416 {
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
417 octave_idx_type step = stride[lev];
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
418 octave_idx_type len = dim[lev];
17769
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Rik <rik@octave.org>
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diff changeset
419 for (octave_idx_type i = 0, j = 0; i < len; i++, j+= step)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
420 dest = do_permute (src + i * step, dest, lev-1);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
421 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
422
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
423 return dest;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
424 }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
425
12153
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
426 // No copying!
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
427
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
428 rec_permute_helper (const rec_permute_helper&);
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
429
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
430 rec_permute_helper& operator = (const rec_permute_helper&);
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
431
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
432 public:
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
433
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
434 template <class T>
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
435 void permute (const T *src, T *dest) const { do_permute (src, dest, top); }
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
436 };
7241
da540e715d05 [project @ 2007-12-03 22:55:20 by jwe]
jwe
parents: 7189
diff changeset
437
5607
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
438
4567
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe]
jwe
parents: 4553
diff changeset
439 template <class T>
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
440 Array<T>
5607
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
441 Array<T>::permute (const Array<octave_idx_type>& perm_vec_arg, bool inv) const
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
442 {
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
443 Array<T> retval;
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
444
5607
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
445 Array<octave_idx_type> perm_vec = perm_vec_arg;
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
446
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
447 dim_vector dv = dims ();
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
448
20442
a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
parents: 20438
diff changeset
449 int perm_vec_len = perm_vec_arg.numel ();
5148
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
450
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
451 if (perm_vec_len < dv.length ())
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
452 (*current_liboctave_error_handler)
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
453 ("%s: invalid permutation vector", inv ? "ipermute" : "permute");
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
454
9507
b096d11237be dim_vector improvements
Jaroslav Hajek <highegg@gmail.com>
parents: 9341
diff changeset
455 dim_vector dv_new = dim_vector::alloc (perm_vec_len);
5148
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
456
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
457 // Append singleton dimensions as needed.
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
458 dv.resize (perm_vec_len, 1);
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
459
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
460 // Need this array to check for identical elements in permutation array.
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
461 OCTAVE_LOCAL_BUFFER_INIT (bool, checked, perm_vec_len, false);
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
462
9678
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes
Jaroslav Hajek <highegg@gmail.com>
parents: 9624
diff changeset
463 bool identity = true;
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes
Jaroslav Hajek <highegg@gmail.com>
parents: 9624
diff changeset
464
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
465 // Find dimension vector of permuted array.
5148
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
466 for (int i = 0; i < perm_vec_len; i++)
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
467 {
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
468 octave_idx_type perm_elt = perm_vec.elem (i);
5148
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
469 if (perm_elt >= perm_vec_len || perm_elt < 0)
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
470 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
471 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
472 ("%s: permutation vector contains an invalid element",
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
473 inv ? "ipermute" : "permute");
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
474
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
475 return retval;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
476 }
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
477
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
478 if (checked[perm_elt])
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
479 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
480 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
481 ("%s: permutation vector cannot contain identical elements",
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
482 inv ? "ipermute" : "permute");
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
483
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
484 return retval;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
485 }
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
486 else
9678
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes
Jaroslav Hajek <highegg@gmail.com>
parents: 9624
diff changeset
487 {
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes
Jaroslav Hajek <highegg@gmail.com>
parents: 9624
diff changeset
488 checked[perm_elt] = true;
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes
Jaroslav Hajek <highegg@gmail.com>
parents: 9624
diff changeset
489 identity = identity && perm_elt == i;
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes
Jaroslav Hajek <highegg@gmail.com>
parents: 9624
diff changeset
490 }
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
491 }
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
492
9678
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes
Jaroslav Hajek <highegg@gmail.com>
parents: 9624
diff changeset
493 if (identity)
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes
Jaroslav Hajek <highegg@gmail.com>
parents: 9624
diff changeset
494 return *this;
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes
Jaroslav Hajek <highegg@gmail.com>
parents: 9624
diff changeset
495
5607
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
496 if (inv)
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
497 {
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
498 for (int i = 0; i < perm_vec_len; i++)
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
499 perm_vec(perm_vec_arg(i)) = i;
5607
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
500 }
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
501
10270
6ffed9bb5598 fix ipermute
Jaroslav Hajek <highegg@gmail.com>
parents: 10258
diff changeset
502 for (int i = 0; i < perm_vec_len; i++)
6ffed9bb5598 fix ipermute
Jaroslav Hajek <highegg@gmail.com>
parents: 10258
diff changeset
503 dv_new(i) = dv(perm_vec(i));
6ffed9bb5598 fix ipermute
Jaroslav Hajek <highegg@gmail.com>
parents: 10258
diff changeset
504
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
505 retval = Array<T> (dv_new);
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
506
5940
0dd8428bb260 [project @ 2006-08-18 17:50:23 by jwe]
jwe
parents: 5837
diff changeset
507 if (numel () > 0)
5607
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
508 {
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
509 rec_permute_helper rh (dv, perm_vec);
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
510 rh.permute (data (), retval.fortran_vec ());
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
511 }
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
512
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
513 return retval;
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
514 }
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
515
11507
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
516 // Helper class for multi-d index reduction and recursive
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
517 // indexing/indexed assignment. Rationale: we could avoid recursion
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
518 // using a state machine instead. However, using recursion is much
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
519 // more amenable to possible parallelization in the future.
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
520 // Also, the recursion solution is cleaner and more understandable.
11507
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
521
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
522 class rec_index_helper
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
523 {
11507
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
524 // CDIM occupies the last half of the space allocated for dim to
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
525 // avoid a double allocation.
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
526
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
527 int n;
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
528 int top;
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
529 octave_idx_type *dim;
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
530 octave_idx_type *cdim;
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
531 idx_vector *idx;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
532
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
533 public:
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
534 rec_index_helper (const dim_vector& dv, const Array<idx_vector>& ia)
20442
a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
parents: 20438
diff changeset
535 : n (ia.numel ()), top (0), dim (new octave_idx_type [2*n]),
11507
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
536 cdim (dim + n), idx (new idx_vector [n])
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
537 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
538 assert (n > 0 && (dv.length () == std::max (n, 2)));
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
539
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
540 dim[0] = dv(0);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
541 cdim[0] = 1;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
542 idx[0] = ia(0);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
543
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
544 for (int i = 1; i < n; i++)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
545 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
546 // Try reduction...
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
547 if (idx[top].maybe_reduce (dim[top], ia(i), dv(i)))
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
548 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
549 // Reduction successful, fold dimensions.
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
550 dim[top] *= dv(i);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
551 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
552 else
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
553 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
554 // Unsuccessful, store index & cumulative dim.
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
555 top++;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
556 idx[top] = ia(i);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
557 dim[top] = dv(i);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
558 cdim[top] = cdim[top-1] * dim[top-1];
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
559 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
560 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
561 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
562
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
563 ~rec_index_helper (void) { delete [] idx; delete [] dim; }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
564
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
565 private:
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
566
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
567 // Recursive N-d indexing
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
568 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
569 T *do_index (const T *src, T *dest, int lev) const
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
570 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
571 if (lev == 0)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
572 dest += idx[0].index (src, dim[0], dest);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
573 else
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
574 {
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
575 octave_idx_type nn = idx[lev].length (dim[lev]);
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
576 octave_idx_type d = cdim[lev];
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
577 for (octave_idx_type i = 0; i < nn; i++)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
578 dest = do_index (src + d*idx[lev].xelem (i), dest, lev-1);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
579 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
580
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
581 return dest;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
582 }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
583
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
584 // Recursive N-d indexed assignment
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
585 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
586 const T *do_assign (const T *src, T *dest, int lev) const
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
587 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
588 if (lev == 0)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
589 src += idx[0].assign (src, dim[0], dest);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
590 else
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
591 {
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
592 octave_idx_type nn = idx[lev].length (dim[lev]);
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
593 octave_idx_type d = cdim[lev];
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
594 for (octave_idx_type i = 0; i < nn; i++)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
595 src = do_assign (src, dest + d*idx[lev].xelem (i), lev-1);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
596 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
597
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
598 return src;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
599 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
600
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
601 // Recursive N-d indexed assignment
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
602 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
603 void do_fill (const T& val, T *dest, int lev) const
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
604 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
605 if (lev == 0)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
606 idx[0].fill (val, dim[0], dest);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
607 else
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
608 {
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
609 octave_idx_type nn = idx[lev].length (dim[lev]);
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
610 octave_idx_type d = cdim[lev];
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
611 for (octave_idx_type i = 0; i < nn; i++)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
612 do_fill (val, dest + d*idx[lev].xelem (i), lev-1);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
613 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
614 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
615
12153
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
616 // No copying!
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
617
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
618 rec_index_helper (const rec_index_helper&);
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
619
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
620 rec_index_helper& operator = (const rec_index_helper&);
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
621
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
622 public:
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
623
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
624 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
625 void index (const T *src, T *dest) const { do_index (src, dest, top); }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
626
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
627 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
628 void assign (const T *src, T *dest) const { do_assign (src, dest, top); }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
629
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
630 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
631 void fill (const T& val, T *dest) const { do_fill (val, dest, top); }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
632
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
633 bool is_cont_range (octave_idx_type& l,
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
634 octave_idx_type& u) const
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
635 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
636 return top == 0 && idx[0].is_cont_range (dim[0], l, u);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
637 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
638 };
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
639
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
640 // Helper class for multi-d recursive resizing
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
641 // This handles resize () in an efficient manner, touching memory only
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
642 // once (apart from reinitialization)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
643 class rec_resize_helper
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
644 {
11507
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
645 octave_idx_type *cext;
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
646 octave_idx_type *sext;
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
647 octave_idx_type *dext;
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
648 int n;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
649
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
650 public:
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
651 rec_resize_helper (const dim_vector& ndv, const dim_vector& odv)
11507
c3ad80f4ce36 Array.h, Array.cc: more constructor fixes
John W. Eaton <jwe@octave.org>
parents: 11242
diff changeset
652 : cext (0), sext (0), dext (0), n (0)
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
653 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
654 int l = ndv.length ();
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
655 assert (odv.length () == l);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
656 octave_idx_type ld = 1;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
657 int i = 0;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
658 for (; i < l-1 && ndv(i) == odv(i); i++) ld *= ndv(i);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
659 n = l - i;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
660 cext = new octave_idx_type [3*n];
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
661 // Trick to avoid three allocations
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
662 sext = cext + n;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
663 dext = sext + n;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
664
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
665 octave_idx_type sld = ld;
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
666 octave_idx_type dld = ld;
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
667 for (int j = 0; j < n; j++)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
668 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
669 cext[j] = std::min (ndv(i+j), odv(i+j));
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
670 sext[j] = sld *= odv(i+j);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
671 dext[j] = dld *= ndv(i+j);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
672 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
673 cext[0] *= ld;
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
674 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
675
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
676 ~rec_resize_helper (void) { delete [] cext; }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
677
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
678 private:
12153
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
679
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
680 // recursive resizing
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
681 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
682 void do_resize_fill (const T* src, T *dest, const T& rfv, int lev) const
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
683 {
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
684 if (lev == 0)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
685 {
19576
af41e41ad28e replace oct-mem.h inline indirections by standard function calls.
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents: 18145
diff changeset
686 std::copy (src, src+cext[0], dest);
af41e41ad28e replace oct-mem.h inline indirections by standard function calls.
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents: 18145
diff changeset
687 std::fill_n (dest + cext[0], dext[0] - cext[0], rfv);
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
688 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
689 else
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
690 {
18098
6c706a83070f Tweak cset 8e056300994b defining 1 var per line in liboctave.
Rik <rik@octave.org>
parents: 18084
diff changeset
691 octave_idx_type sd, dd, k;
6c706a83070f Tweak cset 8e056300994b defining 1 var per line in liboctave.
Rik <rik@octave.org>
parents: 18084
diff changeset
692 sd = sext[lev-1];
6c706a83070f Tweak cset 8e056300994b defining 1 var per line in liboctave.
Rik <rik@octave.org>
parents: 18084
diff changeset
693 dd = dext[lev-1];
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
694 for (k = 0; k < cext[lev]; k++)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
695 do_resize_fill (src + k * sd, dest + k * dd, rfv, lev - 1);
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
696
19576
af41e41ad28e replace oct-mem.h inline indirections by standard function calls.
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents: 18145
diff changeset
697 std::fill_n (dest + k * dd, dext[lev] - k * dd, rfv);
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
698 }
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
699 }
12153
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
700
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
701 // No copying!
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
702
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
703 rec_resize_helper (const rec_resize_helper&);
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
704
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
705 rec_resize_helper& operator = (const rec_resize_helper&);
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
706
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
707 public:
12153
e0e50f48df37 Explicitly disallow copying in some classes
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11590
diff changeset
708
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
709 template <class T>
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
710 void resize_fill (const T* src, T *dest, const T& rfv) const
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
711 { do_resize_fill (src, dest, rfv, n-1); }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
712 };
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
713
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
714 template <class T>
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
715 Array<T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
716 Array<T>::index (const idx_vector& i) const
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
717 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
718 octave_idx_type n = numel ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
719 Array<T> retval;
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
720
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
721 if (i.is_colon ())
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
722 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
723 // A(:) produces a shallow copy as a column vector.
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
724 retval = Array<T> (*this, dim_vector (n, 1));
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
725 }
4548
820323598f4f [project @ 2003-10-26 03:16:42 by jwe]
jwe
parents: 4545
diff changeset
726 else
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
727 {
10366
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
728 if (i.extent (n) != n)
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
729 gripe_index_out_of_range (1, 1, i.extent (n), n); // throws
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
730
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
731 // FIXME: this is the only place where orig_dimensions are used.
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
732 dim_vector rd = i.orig_dimensions ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
733 octave_idx_type il = i.length (n);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
734
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
735 // FIXME: this is for Matlab compatibility. Matlab 2007 given
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
736 //
15018
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
737 // b = ones (3,1)
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
738 //
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
739 // yields the following:
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
740 //
15018
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
741 // b(zeros (0,0)) gives []
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
742 // b(zeros (1,0)) gives zeros (0,1)
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
743 // b(zeros (0,1)) gives zeros (0,1)
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
744 // b(zeros (0,m)) gives zeros (0,m)
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
745 // b(zeros (m,0)) gives zeros (m,0)
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
746 // b(1:2) gives ones (2,1)
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
747 // b(ones (2)) gives ones (2) etc.
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
748 //
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
749 // As you can see, the behaviour is weird, but the tests end up pretty
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
750 // simple. Nah, I don't want to suggest that this is ad hoc :)
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
751
9987
bb30843c4929 fix subscripting of vectors by N-d arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9921
diff changeset
752 if (ndims () == 2 && n != 1 && rd.is_vector ())
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
753 {
9987
bb30843c4929 fix subscripting of vectors by N-d arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9921
diff changeset
754 if (columns () == 1)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
755 rd = dim_vector (il, 1);
9987
bb30843c4929 fix subscripting of vectors by N-d arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9921
diff changeset
756 else if (rows () == 1)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
757 rd = dim_vector (1, il);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
758 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
759
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
760 octave_idx_type l, u;
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
761 if (il != 0 && i.is_cont_range (n, l, u))
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
762 // If suitable, produce a shallow slice.
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
763 retval = Array<T> (*this, rd, l, u);
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
764 else
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
765 {
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
766 // Don't use resize here to avoid useless initialization for POD
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
767 // types.
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
768 retval = Array<T> (rd);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
769
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
770 if (il != 0)
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
771 i.index (data (), n, retval.fortran_vec ());
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
772 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
773 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
774
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
775 return retval;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
776 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
777
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
778 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
779 Array<T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
780 Array<T>::index (const idx_vector& i, const idx_vector& j) const
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
781 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
782 // Get dimensions, allowing Fortran indexing in the 2nd dim.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
783 dim_vector dv = dimensions.redim (2);
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
784 octave_idx_type r = dv(0);
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
785 octave_idx_type c = dv(1);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
786 Array<T> retval;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
787
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
788 if (i.is_colon () && j.is_colon ())
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
789 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
790 // A(:,:) produces a shallow copy.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
791 retval = Array<T> (*this, dv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
792 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
793 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
794 {
10366
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
795 if (i.extent (r) != r)
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
796 gripe_index_out_of_range (2, 1, i.extent (r), r); // throws
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
797 if (j.extent (c) != c)
14158
727504fd26f0 Fix erroneous indexing error message.
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
798 gripe_index_out_of_range (2, 2, j.extent (c), c); // throws
10366
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
799
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
800 octave_idx_type n = numel ();
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
801 octave_idx_type il = i.length (r);
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
802 octave_idx_type jl = j.length (c);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
803
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
804 idx_vector ii (i);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
805
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
806 if (ii.maybe_reduce (r, j, c))
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
807 {
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
808 octave_idx_type l, u;
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
809 if (ii.length () > 0 && ii.is_cont_range (n, l, u))
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
810 // If suitable, produce a shallow slice.
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
811 retval = Array<T> (*this, dim_vector (il, jl), l, u);
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
812 else
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
813 {
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
814 // Don't use resize to avoid useless initialization for POD types.
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
815 retval = Array<T> (dim_vector (il, jl));
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
816
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
817 ii.index (data (), n, retval.fortran_vec ());
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
818 }
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
819 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
820 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
821 {
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
822 // Don't use resize to avoid useless initialization for POD types.
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
823 retval = Array<T> (dim_vector (il, jl));
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
824
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
825 const T* src = data ();
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
826 T *dest = retval.fortran_vec ();
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
827
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
828 for (octave_idx_type k = 0; k < jl; k++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
829 dest += i.index (src + r * j.xelem (k), r, dest);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
830 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
831 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
832
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
833 return retval;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
834 }
4747
3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe]
jwe
parents: 4746
diff changeset
835
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
836 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
837 Array<T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
838 Array<T>::index (const Array<idx_vector>& ia) const
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
839 {
20442
a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
parents: 20438
diff changeset
840 int ial = ia.numel ();
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
841 Array<T> retval;
4587
7b957b442818 [project @ 2003-11-10 15:50:39 by jwe]
jwe
parents: 4586
diff changeset
842
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
843 // FIXME: is this dispatching necessary?
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
844 if (ial == 1)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
845 retval = index (ia(0));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
846 else if (ial == 2)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
847 retval = index (ia(0), ia(1));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
848 else if (ial > 0)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
849 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
850 // Get dimensions, allowing Fortran indexing in the last dim.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
851 dim_vector dv = dimensions.redim (ial);
4747
3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe]
jwe
parents: 4746
diff changeset
852
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
853 // Check for out of bounds conditions.
10366
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
854 bool all_colons = true;
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
855 for (int i = 0; i < ial; i++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
856 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
857 if (ia(i).extent (dv(i)) != dv(i))
10366
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
858 gripe_index_out_of_range (ial, i+1, ia(i).extent (dv(i)), dv(i)); // throws
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
859
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
860 all_colons = all_colons && ia(i).is_colon ();
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
861 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
862
4870
2cbc6f37b0c2 [project @ 2004-04-21 17:30:51 by jwe]
jwe
parents: 4834
diff changeset
863
10366
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
864 if (all_colons)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
865 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
866 // A(:,:,...,:) produces a shallow copy.
10095
eb8ac0eed9f1 always chop dimension vector when constructing Arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 10075
diff changeset
867 dv.chop_trailing_singletons ();
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
868 retval = Array<T> (*this, dv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
869 }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
870 else
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
871 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
872 // Form result dimensions.
9507
b096d11237be dim_vector improvements
Jaroslav Hajek <highegg@gmail.com>
parents: 9341
diff changeset
873 dim_vector rdv = dim_vector::alloc (ial);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
874 for (int i = 0; i < ial; i++) rdv(i) = ia(i).length (dv(i));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
875 rdv.chop_trailing_singletons ();
4870
2cbc6f37b0c2 [project @ 2004-04-21 17:30:51 by jwe]
jwe
parents: 4834
diff changeset
876
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
877 // Prepare for recursive indexing
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
878 rec_index_helper rh (dv, ia);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
879
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
880 octave_idx_type l, u;
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
881 if (rh.is_cont_range (l, u))
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
882 // If suitable, produce a shallow slice.
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
883 retval = Array<T> (*this, rdv, l, u);
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
884 else
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
885 {
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
886 // Don't use resize to avoid useless initialization for POD types.
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
887 retval = Array<T> (rdv);
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
888
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
889 // Do it.
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
890 rh.index (data (), retval.fortran_vec ());
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
891 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
892 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
893 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
894
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
895 return retval;
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
896 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
897
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
898 // The default fill value. Override if you want a different one.
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
899
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
900 template <class T>
14616
13cc11418393 improve handling of default resize fill value for arrays
John W. Eaton <jwe@octave.org>
parents: 14591
diff changeset
901 T
13cc11418393 improve handling of default resize fill value for arrays
John W. Eaton <jwe@octave.org>
parents: 14591
diff changeset
902 Array<T>::resize_fill_value (void) const
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
903 {
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
904 static T zero = T ();
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
905 return zero;
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
906 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
907
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
908 // Yes, we could do resize using index & assign. However, that would
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
909 // possibly involve a lot more memory traffic than we actually need.
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
910
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
911 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
912 void
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
913 Array<T>::resize1 (octave_idx_type n, const T& rfv)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
914 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
915 if (n >= 0 && ndims () == 2)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
916 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
917 dim_vector dv;
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
918 // This is driven by Matlab's behaviour of giving a *row* vector
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
919 // on some out-of-bounds assignments. Specifically, Matlab
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
920 // allows a(i) with out-of-bouds i when a is either of 0x0, 1x0,
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
921 // 1x1, 0xN, and gives a row vector in all cases (yes, even the
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
922 // last one, search me why). Giving a column vector would make
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
923 // much more sense (given the way trailing singleton dims are
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
924 // treated).
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
925 bool invalid = false;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
926 if (rows () == 0 || rows () == 1)
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
927 dv = dim_vector (1, n);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
928 else if (columns () == 1)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
929 dv = dim_vector (n, 1);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
930 else
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
931 invalid = true;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
932
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
933 if (invalid)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
934 gripe_invalid_resize ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
935 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
936 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
937 octave_idx_type nx = numel ();
9100
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
938 if (n == nx - 1 && n > 0)
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
939 {
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
940 // Stack "pop" operation.
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
941 if (rep->count == 1)
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
942 slice_data[slice_len-1] = T ();
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
943 slice_len--;
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
944 dimensions = dv;
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
945 }
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
946 else if (n == nx + 1 && nx > 0)
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
947 {
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
948 // Stack "push" operation.
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
949 if (rep->count == 1
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
950 && slice_data + slice_len < rep->data + rep->len)
9100
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
951 {
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
952 slice_data[slice_len++] = rfv;
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
953 dimensions = dv;
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
954 }
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
955 else
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
956 {
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
957 static const octave_idx_type max_stack_chunk = 1024;
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
958 octave_idx_type nn = n + std::min (nx, max_stack_chunk);
11570
57632dea2446 attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
959 Array<T> tmp (Array<T> (dim_vector (nn, 1)), dv, 0, n);
9100
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
960 T *dest = tmp.fortran_vec ();
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
961
19576
af41e41ad28e replace oct-mem.h inline indirections by standard function calls.
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents: 18145
diff changeset
962 std::copy (data (), data () + nx, dest);
9100
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
963 dest[nx] = rfv;
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
964
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
965 *this = tmp;
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
966 }
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
967 }
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
968 else if (n != nx)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
969 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
970 Array<T> tmp = Array<T> (dv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
971 T *dest = tmp.fortran_vec ();
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
972
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
973 octave_idx_type n0 = std::min (n, nx);
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
974 octave_idx_type n1 = n - n0;
19576
af41e41ad28e replace oct-mem.h inline indirections by standard function calls.
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents: 18145
diff changeset
975 std::copy (data (), data () + n0, dest);
af41e41ad28e replace oct-mem.h inline indirections by standard function calls.
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents: 18145
diff changeset
976 std::fill_n (dest + n0, n1, rfv);
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
977
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
978 *this = tmp;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
979 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
980 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
981 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
982 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
983 gripe_invalid_resize ();
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
984 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
985
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
986 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
987 void
11574
a83bad07f7e3 attempt better backward compatibility for Array resize functions
John W. Eaton <jwe@octave.org>
parents: 11570
diff changeset
988 Array<T>::resize2 (octave_idx_type r, octave_idx_type c, const T& rfv)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
989 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
990 if (r >= 0 && c >= 0 && ndims () == 2)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
991 {
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
992 octave_idx_type rx = rows ();
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
993 octave_idx_type cx = columns ();
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
994 if (r != rx || c != cx)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
995 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
996 Array<T> tmp = Array<T> (dim_vector (r, c));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
997 T *dest = tmp.fortran_vec ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
998
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
999 octave_idx_type r0 = std::min (r, rx);
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1000 octave_idx_type r1 = r - r0;
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1001 octave_idx_type c0 = std::min (c, cx);
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1002 octave_idx_type c1 = c - c0;
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1003 const T *src = data ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1004 if (r == rx)
9773
01f897d8a130 optimize memory manipulation by arrays & indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 9732
diff changeset
1005 {
19576
af41e41ad28e replace oct-mem.h inline indirections by standard function calls.
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents: 18145
diff changeset
1006 std::copy (src, src + r * c0, dest);
9773
01f897d8a130 optimize memory manipulation by arrays & indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 9732
diff changeset
1007 dest += r * c0;
01f897d8a130 optimize memory manipulation by arrays & indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 9732
diff changeset
1008 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1009 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1010 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1011 for (octave_idx_type k = 0; k < c0; k++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1012 {
19576
af41e41ad28e replace oct-mem.h inline indirections by standard function calls.
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents: 18145
diff changeset
1013 std::copy (src, src + r0, dest);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1014 src += rx;
9773
01f897d8a130 optimize memory manipulation by arrays & indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 9732
diff changeset
1015 dest += r0;
19576
af41e41ad28e replace oct-mem.h inline indirections by standard function calls.
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents: 18145
diff changeset
1016 std::fill_n (dest, r1, rfv);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1017 dest += r1;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1018 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1019 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1020
19576
af41e41ad28e replace oct-mem.h inline indirections by standard function calls.
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents: 18145
diff changeset
1021 std::fill_n (dest, r * c1, rfv);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1022
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1023 *this = tmp;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1024 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1025 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1026 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1027 gripe_invalid_resize ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1028
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1029 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1030
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1031 template<class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1032 void
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
1033 Array<T>::resize (const dim_vector& dv, const T& rfv)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1034 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1035 int dvl = dv.length ();
8784
374cb30311a8 remove dead branch in Array.cc
Jaroslav Hajek <highegg@gmail.com>
parents: 8760
diff changeset
1036 if (dvl == 2)
11574
a83bad07f7e3 attempt better backward compatibility for Array resize functions
John W. Eaton <jwe@octave.org>
parents: 11570
diff changeset
1037 resize2 (dv(0), dv(1), rfv);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1038 else if (dimensions != dv)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1039 {
8799
f6dc6eb57045 improve resize & resize on assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 8784
diff changeset
1040 if (dimensions.length () <= dvl && ! dv.any_neg ())
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1041 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1042 Array<T> tmp (dv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1043 // Prepare for recursive resizing.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1044 rec_resize_helper rh (dv, dimensions.redim (dvl));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1045
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1046 // Do it.
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1047 rh.resize_fill (data (), tmp.fortran_vec (), rfv);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1048 *this = tmp;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1049 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1050 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1051 gripe_invalid_resize ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1052 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1053 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1054
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1055 template <class T>
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1056 Array<T>
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1057 Array<T>::index (const idx_vector& i, bool resize_ok, const T& rfv) const
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1058 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1059 Array<T> tmp = *this;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1060 if (resize_ok)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1061 {
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1062 octave_idx_type n = numel ();
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1063 octave_idx_type nx = i.extent (n);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1064 if (n != nx)
8563
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1065 {
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1066 if (i.is_scalar ())
11570
57632dea2446 attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
1067 return Array<T> (dim_vector (1, 1), rfv);
8563
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1068 else
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
1069 tmp.resize1 (nx, rfv);
8563
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1070 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1071
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1072 if (tmp.numel () != nx)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1073 return Array<T> ();
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1074 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1075
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1076 return tmp.index (i);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1077 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1078
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1079 template <class T>
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1080 Array<T>
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1081 Array<T>::index (const idx_vector& i, const idx_vector& j,
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1082 bool resize_ok, const T& rfv) const
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1083 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1084 Array<T> tmp = *this;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1085 if (resize_ok)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1086 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1087 dim_vector dv = dimensions.redim (2);
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1088 octave_idx_type r = dv(0);
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1089 octave_idx_type c = dv(1);
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1090 octave_idx_type rx = i.extent (r);
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1091 octave_idx_type cx = j.extent (c);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1092 if (r != rx || c != cx)
8563
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1093 {
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1094 if (i.is_scalar () && j.is_scalar ())
11570
57632dea2446 attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
1095 return Array<T> (dim_vector (1, 1), rfv);
8563
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1096 else
11574
a83bad07f7e3 attempt better backward compatibility for Array resize functions
John W. Eaton <jwe@octave.org>
parents: 11570
diff changeset
1097 tmp.resize2 (rx, cx, rfv);
8563
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1098 }
4747
3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe]
jwe
parents: 4746
diff changeset
1099
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1100 if (tmp.rows () != rx || tmp.columns () != cx)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1101 return Array<T> ();
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1102 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1103
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1104 return tmp.index (i, j);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1105 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1106
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1107 template <class T>
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1108 Array<T>
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1109 Array<T>::index (const Array<idx_vector>& ia,
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1110 bool resize_ok, const T& rfv) const
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1111 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1112 Array<T> tmp = *this;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1113 if (resize_ok)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1114 {
20442
a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
parents: 20438
diff changeset
1115 int ial = ia.numel ();
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1116 dim_vector dv = dimensions.redim (ial);
9507
b096d11237be dim_vector improvements
Jaroslav Hajek <highegg@gmail.com>
parents: 9341
diff changeset
1117 dim_vector dvx = dim_vector::alloc (ial);
20428
b2100e1659ac maint: Use cuddled parentheses when indexing dimension_vectors.
Rik <rik@octave.org>
parents: 20068
diff changeset
1118 for (int i = 0; i < ial; i++) dvx(i) = ia(i).extent (dv(i));
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1119 if (! (dvx == dv))
8563
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1120 {
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1121 bool all_scalars = true;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1122 for (int i = 0; i < ial; i++)
8563
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1123 all_scalars = all_scalars && ia(i).is_scalar ();
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1124 if (all_scalars)
11570
57632dea2446 attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
1125 return Array<T> (dim_vector (1, 1), rfv);
8563
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1126 else
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
1127 tmp.resize (dvx, rfv);
8563
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1128 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1129
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1130 if (tmp.dimensions != dvx)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1131 return Array<T> ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1132 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1133
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1134 return tmp.index (ia);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1135 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1136
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1137
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1138 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1139 void
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1140 Array<T>::assign (const idx_vector& i, const Array<T>& rhs, const T& rfv)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1141 {
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1142 octave_idx_type n = numel ();
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1143 octave_idx_type rhl = rhs.numel ();
4548
820323598f4f [project @ 2003-10-26 03:16:42 by jwe]
jwe
parents: 4545
diff changeset
1144
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1145 if (rhl == 1 || i.length (n) == rhl)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1146 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1147 octave_idx_type nx = i.extent (n);
9886
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1148 bool colon = i.is_colon_equiv (nx);
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1149 // Try to resize first if necessary.
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1150 if (nx != n)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1151 {
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1152 // Optimize case A = []; A(1:n) = X with A empty.
9886
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1153 if (dimensions.zero_by_zero () && colon)
8580
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1154 {
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1155 if (rhl == 1)
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1156 *this = Array<T> (dim_vector (1, nx), rhs(0));
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1157 else
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1158 *this = Array<T> (rhs, dim_vector (1, nx));
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1159 return;
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1160 }
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1161
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1162 resize1 (nx, rfv);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1163 n = numel ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1164 }
4747
3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe]
jwe
parents: 4746
diff changeset
1165
9886
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1166 if (colon)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1167 {
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1168 // A(:) = X makes a full fill or a shallow copy.
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1169 if (rhl == 1)
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1170 fill (rhs(0));
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1171 else
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1172 *this = rhs.reshape (dimensions);
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1173 }
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1174 else
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1175 {
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1176 if (rhl == 1)
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1177 i.fill (rhs(0), n, fortran_vec ());
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1178 else
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1179 i.assign (rhs.data (), n, fortran_vec ());
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1180 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1181 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1182 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1183 gripe_invalid_assignment_size ();
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1184 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1185
20600
41d19a6ef55a Allow assignment of an empty variable to an empty indexing slice (bug #45467).
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
1186 // Assignment to a 2-dimensional array
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1187 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1188 void
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1189 Array<T>::assign (const idx_vector& i, const idx_vector& j,
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1190 const Array<T>& rhs, const T& rfv)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1191 {
14624
edf9ca8a92a8 when redimensioning, always pad dim_vector objects with 1 (bug #33216)
John W. Eaton <jwe@octave.org>
parents: 14440
diff changeset
1192 bool initial_dims_all_zero = dimensions.all_zero ();
edf9ca8a92a8 when redimensioning, always pad dim_vector objects with 1 (bug #33216)
John W. Eaton <jwe@octave.org>
parents: 14440
diff changeset
1193
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1194 // Get RHS extents, discarding singletons.
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1195 dim_vector rhdv = rhs.dims ();
14624
edf9ca8a92a8 when redimensioning, always pad dim_vector objects with 1 (bug #33216)
John W. Eaton <jwe@octave.org>
parents: 14440
diff changeset
1196
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1197 // Get LHS extents, allowing Fortran indexing in the second dim.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1198 dim_vector dv = dimensions.redim (2);
14624
edf9ca8a92a8 when redimensioning, always pad dim_vector objects with 1 (bug #33216)
John W. Eaton <jwe@octave.org>
parents: 14440
diff changeset
1199
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1200 // Check for out-of-bounds and form resizing dimensions.
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1201 dim_vector rdv;
14624
edf9ca8a92a8 when redimensioning, always pad dim_vector objects with 1 (bug #33216)
John W. Eaton <jwe@octave.org>
parents: 14440
diff changeset
1202
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1203 // In the special when all dimensions are zero, colons are allowed
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1204 // to inquire the shape of RHS. The rules are more obscure, so we
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1205 // solve that elsewhere.
14624
edf9ca8a92a8 when redimensioning, always pad dim_vector objects with 1 (bug #33216)
John W. Eaton <jwe@octave.org>
parents: 14440
diff changeset
1206 if (initial_dims_all_zero)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1207 rdv = zero_dims_inquire (i, j, rhdv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1208 else
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1209 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1210 rdv(0) = i.extent (dv(0));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1211 rdv(1) = j.extent (dv(1));
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1212 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1213
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1214 bool isfill = rhs.numel () == 1;
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1215 octave_idx_type il = i.length (rdv(0));
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1216 octave_idx_type jl = j.length (rdv(1));
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1217 rhdv.chop_all_singletons ();
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1218 bool match = (isfill
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1219 || (rhdv.length () == 2 && il == rhdv(0) && jl == rhdv(1)));
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1220 match = match || (il == 1 && jl == rhdv(0) && rhdv(1) == 1);
4548
820323598f4f [project @ 2003-10-26 03:16:42 by jwe]
jwe
parents: 4545
diff changeset
1221
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1222 if (match)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1223 {
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1224 bool all_colons = (i.is_colon_equiv (rdv(0))
9886
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1225 && j.is_colon_equiv (rdv(1)));
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1226 // Resize if requested.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1227 if (rdv != dv)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1228 {
8580
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1229 // Optimize case A = []; A(1:m, 1:n) = X
9886
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1230 if (dv.zero_by_zero () && all_colons)
8580
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1231 {
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1232 if (isfill)
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1233 *this = Array<T> (rdv, rhs(0));
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1234 else
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1235 *this = Array<T> (rhs, rdv);
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1236 return;
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1237 }
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1238
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1239 resize (rdv, rfv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1240 dv = dimensions;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1241 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1242
9886
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1243 if (all_colons)
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1244 {
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1245 // A(:,:) = X makes a full fill or a shallow copy
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1246 if (isfill)
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1247 fill (rhs(0));
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1248 else
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1249 *this = rhs.reshape (dimensions);
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1250 }
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1251 else
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1252 {
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1253 // The actual work.
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1254 octave_idx_type n = numel ();
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1255 octave_idx_type r = dv(0);
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1256 octave_idx_type c = dv(1);
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1257 idx_vector ii (i);
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1258
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1259 const T* src = rhs.data ();
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1260 T *dest = fortran_vec ();
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1261
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1262 // Try reduction first.
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1263 if (ii.maybe_reduce (r, j, c))
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1264 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1265 if (isfill)
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1266 ii.fill (*src, n, dest);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1267 else
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1268 ii.assign (src, n, dest);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1269 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1270 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1271 {
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1272 if (isfill)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1273 {
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1274 for (octave_idx_type k = 0; k < jl; k++)
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1275 i.fill (*src, r, dest + r * j.xelem (k));
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1276 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1277 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1278 {
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1279 for (octave_idx_type k = 0; k < jl; k++)
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1280 src += i.assign (src, r, dest + r * j.xelem (k));
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1281 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1282 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1283 }
4747
3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe]
jwe
parents: 4746
diff changeset
1284 }
20600
41d19a6ef55a Allow assignment of an empty variable to an empty indexing slice (bug #45467).
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
1285 // any empty RHS can be assigned to an empty LHS
41d19a6ef55a Allow assignment of an empty variable to an empty indexing slice (bug #45467).
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
1286 else if ((il != 0 && jl != 0) || (rhdv(0) != 0 && rhdv(1) != 0))
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1287 gripe_assignment_dimension_mismatch ();
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1288 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1289
20600
41d19a6ef55a Allow assignment of an empty variable to an empty indexing slice (bug #45467).
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
1290 // Assignment to a multi-dimensional array
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1291 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1292 void
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1293 Array<T>::assign (const Array<idx_vector>& ia,
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1294 const Array<T>& rhs, const T& rfv)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1295 {
20442
a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
parents: 20438
diff changeset
1296 int ial = ia.numel ();
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1297
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1298 // FIXME: is this dispatching necessary / desirable?
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1299 if (ial == 1)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1300 assign (ia(0), rhs, rfv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1301 else if (ial == 2)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1302 assign (ia(0), ia(1), rhs, rfv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1303 else if (ial > 0)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1304 {
14624
edf9ca8a92a8 when redimensioning, always pad dim_vector objects with 1 (bug #33216)
John W. Eaton <jwe@octave.org>
parents: 14440
diff changeset
1305 bool initial_dims_all_zero = dimensions.all_zero ();
edf9ca8a92a8 when redimensioning, always pad dim_vector objects with 1 (bug #33216)
John W. Eaton <jwe@octave.org>
parents: 14440
diff changeset
1306
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1307 // Get RHS extents, discarding singletons.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1308 dim_vector rhdv = rhs.dims ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1309
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1310 // Get LHS extents, allowing Fortran indexing in the second dim.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1311 dim_vector dv = dimensions.redim (ial);
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1312
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1313 // Get the extents forced by indexing.
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1314 dim_vector rdv;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1315
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1316 // In the special when all dimensions are zero, colons are
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1317 // allowed to inquire the shape of RHS. The rules are more
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1318 // obscure, so we solve that elsewhere.
14624
edf9ca8a92a8 when redimensioning, always pad dim_vector objects with 1 (bug #33216)
John W. Eaton <jwe@octave.org>
parents: 14440
diff changeset
1319 if (initial_dims_all_zero)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1320 rdv = zero_dims_inquire (ia, rhdv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1321 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1322 {
9507
b096d11237be dim_vector improvements
Jaroslav Hajek <highegg@gmail.com>
parents: 9341
diff changeset
1323 rdv = dim_vector::alloc (ial);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1324 for (int i = 0; i < ial; i++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1325 rdv(i) = ia(i).extent (dv(i));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1326 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1327
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1328 // Check whether LHS and RHS match, up to singleton dims.
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1329 bool match = true;
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1330 bool all_colons = true;
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1331 bool isfill = rhs.numel () == 1;
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1332
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1333 rhdv.chop_all_singletons ();
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1334 int j = 0;
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1335 int rhdvl = rhdv.length ();
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1336 for (int i = 0; i < ial; i++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1337 {
9886
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1338 all_colons = all_colons && ia(i).is_colon_equiv (rdv(i));
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1339 octave_idx_type l = ia(i).length (rdv(i));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1340 if (l == 1) continue;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1341 match = match && j < rhdvl && l == rhdv(j++);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1342 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1343
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1344 match = match && (j == rhdvl || rhdv(j) == 1);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1345 match = match || isfill;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1346
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1347 if (match)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1348 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1349 // Resize first if necessary.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1350 if (rdv != dv)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1351 {
9886
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1352 // Optimize case A = []; A(1:m, 1:n) = X
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1353 if (dv.zero_by_zero () && all_colons)
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1354 {
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1355 rdv.chop_trailing_singletons ();
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1356 if (isfill)
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1357 *this = Array<T> (rdv, rhs(0));
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1358 else
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1359 *this = Array<T> (rhs, rdv);
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1360 return;
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1361 }
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1362
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
1363 resize (rdv, rfv);
10095
eb8ac0eed9f1 always chop dimension vector when constructing Arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 10075
diff changeset
1364 dv = rdv;
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1365 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1366
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1367 if (all_colons)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1368 {
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1369 // A(:,:,...,:) = X makes a full fill or a shallow copy.
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1370 if (isfill)
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1371 fill (rhs(0));
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1372 else
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1373 *this = rhs.reshape (dimensions);
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1374 }
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1375 else
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1376 {
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1377 // Do the actual work.
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1378
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1379 // Prepare for recursive indexing
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1380 rec_index_helper rh (dv, ia);
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1381
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1382 // Do it.
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1383 if (isfill)
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1384 rh.fill (rhs(0), fortran_vec ());
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1385 else
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1386 rh.assign (rhs.data (), fortran_vec ());
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1387 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1388 }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1389 else
20600
41d19a6ef55a Allow assignment of an empty variable to an empty indexing slice (bug #45467).
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
1390 {
41d19a6ef55a Allow assignment of an empty variable to an empty indexing slice (bug #45467).
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
1391 // dimension mismatch, unless LHS and RHS both empty
41d19a6ef55a Allow assignment of an empty variable to an empty indexing slice (bug #45467).
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
1392 bool lhsempty, rhsempty;
41d19a6ef55a Allow assignment of an empty variable to an empty indexing slice (bug #45467).
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
1393 lhsempty = rhsempty = false;
41d19a6ef55a Allow assignment of an empty variable to an empty indexing slice (bug #45467).
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
1394 for (int i = 0; i < ial; i++)
41d19a6ef55a Allow assignment of an empty variable to an empty indexing slice (bug #45467).
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
1395 {
41d19a6ef55a Allow assignment of an empty variable to an empty indexing slice (bug #45467).
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
1396 octave_idx_type l = ia(i).length (rdv(i));
41d19a6ef55a Allow assignment of an empty variable to an empty indexing slice (bug #45467).
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
1397 lhsempty = lhsempty || (l == 0);
41d19a6ef55a Allow assignment of an empty variable to an empty indexing slice (bug #45467).
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
1398 rhsempty = rhsempty || (rhdv(j++) == 0);
41d19a6ef55a Allow assignment of an empty variable to an empty indexing slice (bug #45467).
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
1399 }
41d19a6ef55a Allow assignment of an empty variable to an empty indexing slice (bug #45467).
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
1400 if (! lhsempty || ! rhsempty)
41d19a6ef55a Allow assignment of an empty variable to an empty indexing slice (bug #45467).
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
1401 gripe_assignment_dimension_mismatch ();
41d19a6ef55a Allow assignment of an empty variable to an empty indexing slice (bug #45467).
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
1402 }
4553
c7eb767505e9 [project @ 2003-10-27 21:39:55 by jwe]
jwe
parents: 4548
diff changeset
1403 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1404 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1405
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1406 template <class T>
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1407 void
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1408 Array<T>::delete_elements (const idx_vector& i)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1409 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1410 octave_idx_type n = numel ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1411 if (i.is_colon ())
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1412 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1413 *this = Array<T> ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1414 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1415 else if (i.length (n) != 0)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1416 {
10366
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
1417 if (i.extent (n) != n)
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
1418 gripe_del_index_out_of_range (true, i.extent (n), n);
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
1419
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1420 octave_idx_type l, u;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1421 bool col_vec = ndims () == 2 && columns () == 1 && rows () != 1;
10610
f5f6bde82e19 fix null assignment bug #29785
Jaroslav Hajek <highegg@gmail.com>
parents: 10535
diff changeset
1422 if (i.is_scalar () && i(0) == n-1 && dimensions.is_vector ())
9100
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1423 {
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1424 // Stack "pop" operation.
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
1425 resize1 (n-1);
9100
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1426 }
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1427 else if (i.is_cont_range (n, l, u))
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1428 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1429 // Special case deleting a contiguous range.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1430 octave_idx_type m = n + l - u;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1431 Array<T> tmp (dim_vector (col_vec ? m : 1, !col_vec ? m : 1));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1432 const T *src = data ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1433 T *dest = tmp.fortran_vec ();
19576
af41e41ad28e replace oct-mem.h inline indirections by standard function calls.
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents: 18145
diff changeset
1434 std::copy (src, src + l, dest);
af41e41ad28e replace oct-mem.h inline indirections by standard function calls.
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents: 18145
diff changeset
1435 std::copy (src + u, src + n, dest + l);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1436 *this = tmp;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1437 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1438 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1439 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1440 // Use index.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1441 *this = index (i.complement (n));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1442 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1443 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1444 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1445
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1446 template <class T>
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1447 void
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1448 Array<T>::delete_elements (int dim, const idx_vector& i)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1449 {
8302
f2e050b62199 fix dim check in Array<T>::delete_elements
Jaroslav Hajek <highegg@gmail.com>
parents: 8290
diff changeset
1450 if (dim < 0 || dim >= ndims ())
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1451 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1452 (*current_liboctave_error_handler)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1453 ("invalid dimension in delete_elements");
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1454 return;
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1455 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1456
20428
b2100e1659ac maint: Use cuddled parentheses when indexing dimension_vectors.
Rik <rik@octave.org>
parents: 20068
diff changeset
1457 octave_idx_type n = dimensions(dim);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1458 if (i.is_colon ())
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1459 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1460 *this = Array<T> ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1461 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1462 else if (i.length (n) != 0)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1463 {
10366
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
1464 if (i.extent (n) != n)
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
1465 gripe_del_index_out_of_range (false, i.extent (n), n);
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
1466
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1467 octave_idx_type l, u;
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1468
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1469 if (i.is_cont_range (n, l, u))
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1470 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1471 // Special case deleting a contiguous range.
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1472 octave_idx_type nd = n + l - u;
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1473 octave_idx_type dl = 1;
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1474 octave_idx_type du = 1;
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1475 dim_vector rdv = dimensions;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1476 rdv(dim) = nd;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1477 for (int k = 0; k < dim; k++) dl *= dimensions(k);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1478 for (int k = dim + 1; k < ndims (); k++) du *= dimensions(k);
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1479
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1480 // Special case deleting a contiguous range.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1481 Array<T> tmp = Array<T> (rdv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1482 const T *src = data ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1483 T *dest = tmp.fortran_vec ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1484 l *= dl; u *= dl; n *= dl;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1485 for (octave_idx_type k = 0; k < du; k++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1486 {
19576
af41e41ad28e replace oct-mem.h inline indirections by standard function calls.
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents: 18145
diff changeset
1487 std::copy (src, src + l, dest);
9773
01f897d8a130 optimize memory manipulation by arrays & indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 9732
diff changeset
1488 dest += l;
19576
af41e41ad28e replace oct-mem.h inline indirections by standard function calls.
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents: 18145
diff changeset
1489 std::copy (src + u, src + n, dest);
9773
01f897d8a130 optimize memory manipulation by arrays & indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 9732
diff changeset
1490 dest += n - u;
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1491 src += n;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1492 }
4870
2cbc6f37b0c2 [project @ 2004-04-21 17:30:51 by jwe]
jwe
parents: 4834
diff changeset
1493
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1494 *this = tmp;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1495 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1496 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1497 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1498 // Use index.
11570
57632dea2446 attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
1499 Array<idx_vector> ia (dim_vector (ndims (), 1), idx_vector::colon);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1500 ia (dim) = i.complement (n);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1501 *this = index (ia);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1502 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1503 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1504 }
4747
3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe]
jwe
parents: 4746
diff changeset
1505
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1506 template <class T>
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1507 void
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1508 Array<T>::delete_elements (const Array<idx_vector>& ia)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1509 {
20442
a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
parents: 20438
diff changeset
1510 int ial = ia.numel ();
17642
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1511
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1512 if (ial == 1)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1513 delete_elements (ia(0));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1514 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1515 {
17642
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1516 int k, dim = -1;
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1517 for (k = 0; k < ial; k++)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1518 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1519 if (! ia(k).is_colon ())
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1520 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1521 if (dim < 0)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1522 dim = k;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1523 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1524 break;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1525 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1526 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1527 if (dim < 0)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1528 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1529 dim_vector dv = dimensions;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1530 dv(0) = 0;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1531 *this = Array<T> (dv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1532 }
17642
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1533 else if (k == ial)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1534 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1535 delete_elements (dim, ia(dim));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1536 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1537 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1538 {
17642
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1539 // Allow the null assignment to succeed if it won't change
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1540 // anything because the indices reference an empty slice,
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1541 // provided that there is at most one non-colon (or
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1542 // equivalent) index. So, we still have the requirement of
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1543 // deleting a slice, but it is OK if the slice is empty.
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1544
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1545 // For compatibility with Matlab, stop checking once we see
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1546 // more than one non-colon index or an empty index. Matlab
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1547 // considers "[]" to be an empty index but not "false". We
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1548 // accept both.
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1549
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1550 bool empty_assignment = false;
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1551
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1552 int num_non_colon_indices = 0;
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1553
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1554 int nd = ndims ();
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1555
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1556 for (int i = 0; i < ial; i++)
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1557 {
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1558 octave_idx_type dim_len = i >= nd ? 1 : dimensions(i);
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1559
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1560 if (ia(i).length (dim_len) == 0)
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1561 {
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1562 empty_assignment = true;
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1563 break;
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1564 }
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1565
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1566 if (! ia(i).is_colon_equiv (dim_len))
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1567 {
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1568 num_non_colon_indices++;
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1569
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1570 if (num_non_colon_indices == 2)
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1571 break;
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1572 }
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1573 }
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1574
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1575 if (! empty_assignment)
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1576 (*current_liboctave_error_handler)
7ed397c8ca68 improve compatibility of null assignment (bug #31287)
John W. Eaton <jwe@octave.org>
parents: 15271
diff changeset
1577 ("a null assignment can only have one non-colon index");
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1578 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1579 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1580
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1581 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1582
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1583 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1584 Array<T>&
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1585 Array<T>::insert (const Array<T>& a, octave_idx_type r, octave_idx_type c)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1586 {
10115
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1587 idx_vector i (r, r + a.rows ());
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1588 idx_vector j (c, c + a.columns ());
4786
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1589 if (ndims () == 2 && a.ndims () == 2)
10115
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1590 assign (i, j, a);
4786
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1591 else
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1592 {
11570
57632dea2446 attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
1593 Array<idx_vector> idx (dim_vector (a.ndims (), 1));
10115
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1594 idx(0) = i;
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1595 idx(1) = j;
12884
73e75ff9c31b Fix incorrect loop (bug #32683)
Jordi Gutiérrez Hermoso <jordigh@gmail.com>
parents: 12550
diff changeset
1596 for (int k = 2; k < a.ndims (); k++)
10115
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1597 idx(k) = idx_vector (0, a.dimensions(k));
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1598 assign (idx, a);
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1599 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1600
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1601 return *this;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1602 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1603
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1604 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1605 Array<T>&
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1606 Array<T>::insert (const Array<T>& a, const Array<octave_idx_type>& ra_idx)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1607 {
20442
a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
parents: 20438
diff changeset
1608 octave_idx_type n = ra_idx.numel ();
11570
57632dea2446 attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
1609 Array<idx_vector> idx (dim_vector (n, 1));
10115
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1610 const dim_vector dva = a.dims ().redim (n);
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1611 for (octave_idx_type k = 0; k < n; k++)
20428
b2100e1659ac maint: Use cuddled parentheses when indexing dimension_vectors.
Rik <rik@octave.org>
parents: 20068
diff changeset
1612 idx(k) = idx_vector (ra_idx(k), ra_idx(k) + dva(k));
10115
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1613
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1614 assign (idx, a);
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1615
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1616 return *this;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1617 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1618
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1619
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1620 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1621 Array<T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1622 Array<T>::transpose (void) const
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1623 {
4548
820323598f4f [project @ 2003-10-26 03:16:42 by jwe]
jwe
parents: 4545
diff changeset
1624 assert (ndims () == 2);
820323598f4f [project @ 2003-10-26 03:16:42 by jwe]
jwe
parents: 4545
diff changeset
1625
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1626 octave_idx_type nr = dim1 ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1627 octave_idx_type nc = dim2 ();
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1628
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1629 if (nr >= 8 && nc >= 8)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1630 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1631 Array<T> result (dim_vector (nc, nr));
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1632
9121
bb62bc406ea7 reuse fast blocked transpose implementation from rec_permute_helper in Array<T>::transpose
Jaroslav Hajek <highegg@gmail.com>
parents: 9100
diff changeset
1633 // Reuse the implementation used for permuting.
bb62bc406ea7 reuse fast blocked transpose implementation from rec_permute_helper in Array<T>::transpose
Jaroslav Hajek <highegg@gmail.com>
parents: 9100
diff changeset
1634
bb62bc406ea7 reuse fast blocked transpose implementation from rec_permute_helper in Array<T>::transpose
Jaroslav Hajek <highegg@gmail.com>
parents: 9100
diff changeset
1635 rec_permute_helper::blk_trans (data (), result.fortran_vec (), nr, nc);
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1636
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1637 return result;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1638 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1639 else if (nr > 1 && nc > 1)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1640 {
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1641 Array<T> result (dim_vector (nc, nr));
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1642
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1643 for (octave_idx_type j = 0; j < nc; j++)
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1644 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1645 result.xelem (j, i) = xelem (i, j);
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1646
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1647 return result;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1648 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1649 else
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1650 {
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1651 // Fast transpose for vectors and empty matrices.
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1652 return Array<T> (*this, dim_vector (nc, nr));
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1653 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1654 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1655
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1656 template <class T>
8028
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1657 static T
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1658 no_op_fcn (const T& x)
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1659 {
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1660 return x;
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1661 }
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1662
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1663 template <class T>
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1664 Array<T>
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1665 Array<T>::hermitian (T (*fcn) (const T&)) const
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1666 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1667 assert (ndims () == 2);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1668
8028
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1669 if (! fcn)
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1670 fcn = no_op_fcn<T>;
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1671
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1672 octave_idx_type nr = dim1 ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1673 octave_idx_type nc = dim2 ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1674
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1675 if (nr >= 8 && nc >= 8)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1676 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1677 Array<T> result (dim_vector (nc, nr));
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1678
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1679 // Blocked transpose to attempt to avoid cache misses.
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1680
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1681 // Don't use OCTAVE_LOCAL_BUFFER here as it doesn't work with bool
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1682 // on some compilers.
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1683 T buf[64];
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1684
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1685 octave_idx_type ii = 0, jj;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1686 for (jj = 0; jj < (nc - 8 + 1); jj += 8)
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1687 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1688 for (ii = 0; ii < (nr - 8 + 1); ii += 8)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1689 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1690 // Copy to buffer
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1691 for (octave_idx_type j = jj, k = 0, idxj = jj * nr;
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1692 j < jj + 8; j++, idxj += nr)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1693 for (octave_idx_type i = ii; i < ii + 8; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1694 buf[k++] = xelem (i + idxj);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1695
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1696 // Copy from buffer
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1697 for (octave_idx_type i = ii, idxi = ii * nc; i < ii + 8;
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1698 i++, idxi += nc)
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1699 for (octave_idx_type j = jj, k = i - ii; j < jj + 8;
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1700 j++, k+=8)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1701 result.xelem (j + idxi) = fcn (buf[k]);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1702 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1703
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1704 if (ii < nr)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1705 for (octave_idx_type j = jj; j < jj + 8; j++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1706 for (octave_idx_type i = ii; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1707 result.xelem (j, i) = fcn (xelem (i, j));
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1708 }
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1709
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1710 for (octave_idx_type j = jj; j < nc; j++)
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1711 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1712 result.xelem (j, i) = fcn (xelem (i, j));
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1713
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1714 return result;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1715 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1716 else
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1717 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1718 Array<T> result (dim_vector (nc, nr));
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1719
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1720 for (octave_idx_type j = 0; j < nc; j++)
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1721 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1722 result.xelem (j, i) = fcn (xelem (i, j));
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1723
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1724 return result;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1725 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1726 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1727
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1728 /*
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1729
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1730 %% Tranpose tests for matrices of the tile size and plus or minus a row
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1731 %% and with four tiles.
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1732
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1733 %!shared m7, mt7, m8, mt8, m9, mt9
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1734 %! m7 = reshape (1 : 7*8, 8, 7);
7796
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1735 %! mt7 = [1:8; 9:16; 17:24; 25:32; 33:40; 41:48; 49:56];
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1736 %! m8 = reshape (1 : 8*8, 8, 8);
7796
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1737 %! mt8 = mt8 = [mt7; 57:64];
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1738 %! m9 = reshape (1 : 9*8, 8, 9);
7796
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1739 %! mt9 = [mt8; 65:72];
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1740
14427
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1741 %!assert (m7', mt7)
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1742 %!assert ((1i*m7).', 1i * mt7)
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1743 %!assert ((1i*m7)', conj (1i * mt7))
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1744 %!assert (m8', mt8)
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1745 %!assert ((1i*m8).', 1i * mt8)
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1746 %!assert ((1i*m8)', conj (1i * mt8))
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1747 %!assert (m9', mt9)
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1748 %!assert ((1i*m9).', 1i * mt9)
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1749 %!assert ((1i*m9)', conj (1i * mt9))
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1750 %!assert ([m7, m8; m7, m8]', [mt7, mt7; mt8, mt8])
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1751 %!assert ((1i*[m7, m8; m7, m8]).', 1i * [mt7, mt7; mt8, mt8])
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1752 %!assert ((1i*[m7, m8; m7, m8])', conj (1i * [mt7, mt7; mt8, mt8]))
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1753 %!assert ([m8, m8; m8, m8]', [mt8, mt8; mt8, mt8])
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1754 %!assert ((1i*[m8, m8; m8, m8]).', 1i * [mt8, mt8; mt8, mt8])
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1755 %!assert ((1i*[m8, m8; m8, m8])', conj (1i * [mt8, mt8; mt8, mt8]))
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1756 %!assert ([m9, m8; m9, m8]', [mt9, mt9; mt8, mt8])
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1757 %!assert ((1i*[m9, m8; m9, m8]).', 1i * [mt9, mt9; mt8, mt8])
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks
Rik <octave@nomad.inbox5.com>
parents: 14158
diff changeset
1758 %!assert ((1i*[m9, m8; m9, m8])', conj (1i * [mt9, mt9; mt8, mt8]))
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1759
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1760 */
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1761
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1762 template <class T>
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1763 T *
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1764 Array<T>::fortran_vec (void)
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1765 {
6881
cd2c6a69a70d [project @ 2007-09-07 21:48:09 by jwe]
jwe
parents: 6867
diff changeset
1766 make_unique ();
cd2c6a69a70d [project @ 2007-09-07 21:48:09 by jwe]
jwe
parents: 6867
diff changeset
1767
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
1768 return slice_data;
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1769 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1770
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1771 // Non-real types don't have NaNs.
4517
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
1772 template <class T>
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
1773 inline bool
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
1774 sort_isnan (typename ref_param<T>::type)
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1775 {
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1776 return false;
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1777 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1778
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1779 template <class T>
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1780 Array<T>
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
1781 Array<T>::sort (int dim, sortmode mode) const
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1782 {
10703
5eb420d92307 fix sort and nth_element when trailing singleton dim is specified
Jaroslav Hajek <highegg@gmail.com>
parents: 10681
diff changeset
1783 if (dim < 0)
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1784 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1785 (*current_liboctave_error_handler)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1786 ("sort: invalid dimension");
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1787 return Array<T> ();
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1788 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1789
8651
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
1790 Array<T> m (dims ());
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1791
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1792 dim_vector dv = m.dims ();
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1793
20442
a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
parents: 20438
diff changeset
1794 if (m.numel () < 1)
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1795 return m;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1796
10703
5eb420d92307 fix sort and nth_element when trailing singleton dim is specified
Jaroslav Hajek <highegg@gmail.com>
parents: 10681
diff changeset
1797 if (dim >= dv.length ())
5eb420d92307 fix sort and nth_element when trailing singleton dim is specified
Jaroslav Hajek <highegg@gmail.com>
parents: 10681
diff changeset
1798 dv.resize (dim+1, 1);
5eb420d92307 fix sort and nth_element when trailing singleton dim is specified
Jaroslav Hajek <highegg@gmail.com>
parents: 10681
diff changeset
1799
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1800 octave_idx_type ns = dv(dim);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1801 octave_idx_type iter = dv.numel () / ns;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1802 octave_idx_type stride = 1;
8505
124dd27bedae Array.cc: style fixes
John W. Eaton <jwe@octave.org>
parents: 8410
diff changeset
1803
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1804 for (int i = 0; i < dim; i++)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1805 stride *= dv(i);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1806
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1807 T *v = m.fortran_vec ();
8651
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
1808 const T *ov = data ();
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
1809
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1810 octave_sort<T> lsort;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1811
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1812 if (mode != UNSORTED)
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1813 lsort.set_compare (mode);
7463
2467639bd8c0 eliminate UNDEFINED sort mode
John W. Eaton <jwe@octave.org>
parents: 7443
diff changeset
1814 else
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1815 return m;
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1816
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1817 if (stride == 1)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1818 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1819 for (octave_idx_type j = 0; j < iter; j++)
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1820 {
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1821 // copy and partition out NaNs.
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1822 // FIXME: impact on integer types noticeable?
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1823 octave_idx_type kl = 0;
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1824 octave_idx_type ku = ns;
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1825 for (octave_idx_type i = 0; i < ns; i++)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1826 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1827 T tmp = ov[i];
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
1828 if (sort_isnan<T> (tmp))
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1829 v[--ku] = tmp;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1830 else
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1831 v[kl++] = tmp;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1832 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1833
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1834 // sort.
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1835 lsort.sort (v, kl);
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1836
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1837 if (ku < ns)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1838 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1839 // NaNs are in reverse order
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1840 std::reverse (v + ku, v + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1841 if (mode == DESCENDING)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1842 std::rotate (v, v + ku, v + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1843 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1844
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1845 v += ns;
8651
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
1846 ov += ns;
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1847 }
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1848 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1849 else
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1850 {
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1851 OCTAVE_LOCAL_BUFFER (T, buf, ns);
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1852
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1853 for (octave_idx_type j = 0; j < iter; j++)
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1854 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1855 octave_idx_type offset = j;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1856 octave_idx_type offset2 = 0;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1857
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1858 while (offset >= stride)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1859 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1860 offset -= stride;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1861 offset2++;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1862 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1863
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1864 offset += offset2 * stride * ns;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1865
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1866 // gather and partition out NaNs.
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1867 // FIXME: impact on integer types noticeable?
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1868 octave_idx_type kl = 0;
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1869 octave_idx_type ku = ns;
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1870 for (octave_idx_type i = 0; i < ns; i++)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1871 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1872 T tmp = ov[i*stride + offset];
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
1873 if (sort_isnan<T> (tmp))
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1874 buf[--ku] = tmp;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1875 else
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1876 buf[kl++] = tmp;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1877 }
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1878
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1879 // sort.
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1880 lsort.sort (buf, kl);
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1881
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1882 if (ku < ns)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1883 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1884 // NaNs are in reverse order
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1885 std::reverse (buf + ku, buf + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1886 if (mode == DESCENDING)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1887 std::rotate (buf, buf + ku, buf + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1888 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1889
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1890 // scatter.
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1891 for (octave_idx_type i = 0; i < ns; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1892 v[i*stride + offset] = buf[i];
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1893 }
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1894 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1895
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1896 return m;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1897 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1898
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1899 template <class T>
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1900 Array<T>
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1901 Array<T>::sort (Array<octave_idx_type> &sidx, int dim,
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1902 sortmode mode) const
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1903 {
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1904 if (dim < 0 || dim >= ndims ())
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1905 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1906 (*current_liboctave_error_handler)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1907 ("sort: invalid dimension");
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1908 return Array<T> ();
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1909 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1910
8651
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
1911 Array<T> m (dims ());
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1912
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1913 dim_vector dv = m.dims ();
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1914
20442
a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
parents: 20438
diff changeset
1915 if (m.numel () < 1)
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1916 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1917 sidx = Array<octave_idx_type> (dv);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1918 return m;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1919 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1920
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1921 octave_idx_type ns = dv(dim);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1922 octave_idx_type iter = dv.numel () / ns;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1923 octave_idx_type stride = 1;
8505
124dd27bedae Array.cc: style fixes
John W. Eaton <jwe@octave.org>
parents: 8410
diff changeset
1924
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1925 for (int i = 0; i < dim; i++)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1926 stride *= dv(i);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1927
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1928 T *v = m.fortran_vec ();
8651
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
1929 const T *ov = data ();
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
1930
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1931 octave_sort<T> lsort;
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1932
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1933 sidx = Array<octave_idx_type> (dv);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1934 octave_idx_type *vi = sidx.fortran_vec ();
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1935
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1936 if (mode != UNSORTED)
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1937 lsort.set_compare (mode);
7463
2467639bd8c0 eliminate UNDEFINED sort mode
John W. Eaton <jwe@octave.org>
parents: 7443
diff changeset
1938 else
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1939 return m;
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1940
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1941 if (stride == 1)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1942 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1943 for (octave_idx_type j = 0; j < iter; j++)
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1944 {
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1945 // copy and partition out NaNs.
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1946 // FIXME: impact on integer types noticeable?
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1947 octave_idx_type kl = 0;
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
1948 octave_idx_type ku = ns;
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1949 for (octave_idx_type i = 0; i < ns; i++)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1950 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1951 T tmp = ov[i];
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
1952 if (sort_isnan<T> (tmp))
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1953 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1954 --ku;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1955 v[ku] = tmp;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1956 vi[ku] = i;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1957 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1958 else
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1959 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1960 v[kl] = tmp;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1961 vi[kl] = i;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1962 kl++;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1963 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1964 }
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1965
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1966 // sort.
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1967 lsort.sort (v, vi, kl);
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1968
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1969 if (ku < ns)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1970 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1971 // NaNs are in reverse order
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1972 std::reverse (v + ku, v + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1973 std::reverse (vi + ku, vi + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1974 if (mode == DESCENDING)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1975 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1976 std::rotate (v, v + ku, v + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1977 std::rotate (vi, vi + ku, vi + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1978 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1979 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1980
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1981 v += ns;
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1982 vi += ns;
8651
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
1983 ov += ns;
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1984 }
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1985 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1986 else
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1987 {
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1988 OCTAVE_LOCAL_BUFFER (T, buf, ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1989 OCTAVE_LOCAL_BUFFER (octave_idx_type, bufi, ns);
8651
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
1990
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
1991 for (octave_idx_type j = 0; j < iter; j++)
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1992 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1993 octave_idx_type offset = j;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1994 octave_idx_type offset2 = 0;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1995
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1996 while (offset >= stride)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1997 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1998 offset -= stride;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1999 offset2++;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2000 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2001
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2002 offset += offset2 * stride * ns;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
2003
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
2004 // gather and partition out NaNs.
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2005 // FIXME: impact on integer types noticeable?
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2006 octave_idx_type kl = 0;
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2007 octave_idx_type ku = ns;
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2008 for (octave_idx_type i = 0; i < ns; i++)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2009 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2010 T tmp = ov[i*stride + offset];
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
2011 if (sort_isnan<T> (tmp))
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2012 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2013 --ku;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2014 buf[ku] = tmp;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2015 bufi[ku] = i;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2016 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2017 else
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2018 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2019 buf[kl] = tmp;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2020 bufi[kl] = i;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2021 kl++;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2022 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2023 }
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2024
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2025 // sort.
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2026 lsort.sort (buf, bufi, kl);
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2027
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2028 if (ku < ns)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2029 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2030 // NaNs are in reverse order
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2031 std::reverse (buf + ku, buf + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2032 std::reverse (bufi + ku, bufi + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2033 if (mode == DESCENDING)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2034 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2035 std::rotate (buf, buf + ku, buf + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2036 std::rotate (bufi, bufi + ku, bufi + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2037 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2038 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2039
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2040 // scatter.
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2041 for (octave_idx_type i = 0; i < ns; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2042 v[i*stride + offset] = buf[i];
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2043 for (octave_idx_type i = 0; i < ns; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2044 vi[i*stride + offset] = bufi[i];
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2045 }
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2046 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2047
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2048 return m;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2049 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2050
7620
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2051 template <class T>
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
2052 typename Array<T>::compare_fcn_type
9920
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2053 safe_comparator (sortmode mode, const Array<T>& /* a */,
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2054 bool /* allow_chk */)
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2055 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2056 if (mode == ASCENDING)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2057 return octave_sort<T>::ascending_compare;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2058 else if (mode == DESCENDING)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2059 return octave_sort<T>::descending_compare;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2060 else
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2061 return 0;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2062 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2063
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2064 template <class T>
9920
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2065 sortmode
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2066 Array<T>::is_sorted (sortmode mode) const
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2067 {
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2068 octave_sort<T> lsort;
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2069
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2070 octave_idx_type n = numel ();
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2071
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2072 if (n <= 1)
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2073 return mode ? mode : ASCENDING;
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2074
11210
b79924abf776 Array.cc: use comparisons to sortmode values instead of testing mode directly
John W. Eaton <jwe@octave.org>
parents: 10716
diff changeset
2075 if (mode == UNSORTED)
9920
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2076 {
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2077 // Auto-detect mode.
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2078 compare_fcn_type compare
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2079 = safe_comparator (ASCENDING, *this, false);
9920
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2080
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2081 if (compare (elem (n-1), elem (0)))
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2082 mode = DESCENDING;
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2083 else
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2084 mode = ASCENDING;
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2085 }
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2086
11210
b79924abf776 Array.cc: use comparisons to sortmode values instead of testing mode directly
John W. Eaton <jwe@octave.org>
parents: 10716
diff changeset
2087 if (mode != UNSORTED)
9920
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2088 {
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2089 lsort.set_compare (safe_comparator (mode, *this, false));
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2090
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2091 if (! lsort.is_sorted (data (), n))
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2092 mode = UNSORTED;
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2093 }
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2094
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2095 return mode;
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2096
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2097 }
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2098
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2099 template <class T>
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2100 Array<octave_idx_type>
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2101 Array<T>::sort_rows_idx (sortmode mode) const
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2102 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2103 Array<octave_idx_type> idx;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2104
9921
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2105 octave_sort<T> lsort (safe_comparator (mode, *this, true));
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2106
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2107 octave_idx_type r = rows ();
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2108 octave_idx_type c = cols ();
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2109
11570
57632dea2446 attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
2110 idx = Array<octave_idx_type> (dim_vector (r, 1));
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2111
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2112 lsort.sort_rows (data (), idx.fortran_vec (), r, c);
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2113
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2114 return idx;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2115 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2116
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2117
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2118 template <class T>
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
2119 sortmode
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2120 Array<T>::is_sorted_rows (sortmode mode) const
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2121 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2122 octave_sort<T> lsort;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2123
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2124 octave_idx_type r = rows ();
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2125 octave_idx_type c = cols ();
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2126
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2127 if (r <= 1 || c == 0)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2128 return mode ? mode : ASCENDING;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2129
11210
b79924abf776 Array.cc: use comparisons to sortmode values instead of testing mode directly
John W. Eaton <jwe@octave.org>
parents: 10716
diff changeset
2130 if (mode == UNSORTED)
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2131 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2132 // Auto-detect mode.
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
2133 compare_fcn_type compare
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2134 = safe_comparator (ASCENDING, *this, false);
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2135
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2136 octave_idx_type i;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2137 for (i = 0; i < cols (); i++)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2138 {
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2139 T l = elem (0, i);
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2140 T u = elem (rows () - 1, i);
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2141 if (compare (l, u))
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2142 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2143 if (mode == DESCENDING)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2144 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2145 mode = UNSORTED;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2146 break;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2147 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2148 else
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2149 mode = ASCENDING;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2150 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2151 else if (compare (u, l))
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2152 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2153 if (mode == ASCENDING)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2154 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2155 mode = UNSORTED;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2156 break;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2157 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2158 else
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2159 mode = DESCENDING;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2160 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2161 }
11210
b79924abf776 Array.cc: use comparisons to sortmode values instead of testing mode directly
John W. Eaton <jwe@octave.org>
parents: 10716
diff changeset
2162 if (mode == UNSORTED && i == cols ())
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2163 mode = ASCENDING;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2164 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2165
11210
b79924abf776 Array.cc: use comparisons to sortmode values instead of testing mode directly
John W. Eaton <jwe@octave.org>
parents: 10716
diff changeset
2166 if (mode != UNSORTED)
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2167 {
9920
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2168 lsort.set_compare (safe_comparator (mode, *this, false));
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2169
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2170 if (! lsort.is_sorted_rows (data (), r, c))
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2171 mode = UNSORTED;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2172 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2173
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2174 return mode;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2175
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2176 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2177
8814
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2178 // Do a binary lookup in a sorted array.
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2179 template <class T>
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
2180 octave_idx_type
8814
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2181 Array<T>::lookup (const T& value, sortmode mode) const
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2182 {
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2183 octave_idx_type n = numel ();
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2184 octave_sort<T> lsort;
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2185
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2186 if (mode == UNSORTED)
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2187 {
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2188 // auto-detect mode
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2189 if (n > 1 && lsort.descending_compare (elem (0), elem (n-1)))
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2190 mode = DESCENDING;
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2191 else
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2192 mode = ASCENDING;
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2193 }
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2194
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2195 lsort.set_compare (mode);
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2196
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2197 return lsort.lookup (data (), n, value);
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2198 }
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2199
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2200 template <class T>
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
2201 Array<octave_idx_type>
9921
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2202 Array<T>::lookup (const Array<T>& values, sortmode mode) const
8814
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2203 {
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2204 octave_idx_type n = numel ();
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2205 octave_idx_type nval = values.numel ();
8814
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2206 octave_sort<T> lsort;
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2207 Array<octave_idx_type> idx (values.dims ());
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2208
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2209 if (mode == UNSORTED)
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2210 {
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2211 // auto-detect mode
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2212 if (n > 1 && lsort.descending_compare (elem (0), elem (n-1)))
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2213 mode = DESCENDING;
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2214 else
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2215 mode = ASCENDING;
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2216 }
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2217
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2218 lsort.set_compare (mode);
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2219
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
2220 // This determines the split ratio between the O(M*log2(N)) and O(M+N)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
2221 // algorithms.
9921
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2222 static const double ratio = 1.0;
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2223 sortmode vmode = UNSORTED;
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2224
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2225 // Attempt the O(M+N) algorithm if M is large enough.
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2226 if (nval > ratio * n / xlog2 (n + 1.0))
8814
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2227 {
9921
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2228 vmode = values.is_sorted ();
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2229 // The table must not contain a NaN.
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2230 if ((vmode == ASCENDING && sort_isnan<T> (values(nval-1)))
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2231 || (vmode == DESCENDING && sort_isnan<T> (values(0))))
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2232 vmode = UNSORTED;
8814
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2233 }
9921
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2234
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2235 if (vmode != UNSORTED)
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2236 lsort.lookup_sorted (data (), n, values.data (), nval,
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2237 idx.fortran_vec (), vmode != mode);
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2238 else
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2239 lsort.lookup (data (), n, values.data (), nval, idx.fortran_vec ());
8814
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2240
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2241 return idx;
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2242 }
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2243
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2244 template <class T>
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
2245 octave_idx_type
9878
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2246 Array<T>::nnz (void) const
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2247 {
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2248 const T *src = data ();
20438
00cf2847355d Deprecate Array::nelem() and Range::nelem() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
parents: 20428
diff changeset
2249 octave_idx_type nel = numel ();
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2250 octave_idx_type retval = 0;
9878
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2251 const T zero = T ();
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2252 for (octave_idx_type i = 0; i < nel; i++)
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2253 if (src[i] != zero)
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2254 retval++;
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2255
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2256 return retval;
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2257 }
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2258
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2259 template <class T>
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
2260 Array<octave_idx_type>
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2261 Array<T>::find (octave_idx_type n, bool backward) const
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2262 {
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2263 Array<octave_idx_type> retval;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2264 const T *src = data ();
20438
00cf2847355d Deprecate Array::nelem() and Range::nelem() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
parents: 20428
diff changeset
2265 octave_idx_type nel = numel ();
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2266 const T zero = T ();
9310
256c0db275b6 fix behavior of find
Jaroslav Hajek <highegg@gmail.com>
parents: 9237
diff changeset
2267 if (n < 0 || n >= nel)
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2268 {
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2269 // We want all elements, which means we'll almost surely need
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2270 // to resize. So count first, then allocate array of exact size.
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2271 octave_idx_type cnt = 0;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2272 for (octave_idx_type i = 0; i < nel; i++)
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2273 cnt += src[i] != zero;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2274
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
2275 retval.clear (cnt, 1);
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2276 octave_idx_type *dest = retval.fortran_vec ();
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2277 for (octave_idx_type i = 0; i < nel; i++)
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2278 if (src[i] != zero) *dest++ = i;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2279 }
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2280 else
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2281 {
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2282 // We want a fixed max number of elements, usually small. So be
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2283 // optimistic, alloc the array in advance, and then resize if
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2284 // needed.
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
2285 retval.clear (n, 1);
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2286 if (backward)
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2287 {
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2288 // Do the search as a series of successive single-element searches.
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2289 octave_idx_type k = 0;
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2290 octave_idx_type l = nel - 1;
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2291 for (; k < n; k++)
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2292 {
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
2293 for (; l >= 0 && src[l] == zero; l--) ;
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2294 if (l >= 0)
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2295 retval(k) = l--;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2296 else
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2297 break;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2298 }
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2299 if (k < n)
11574
a83bad07f7e3 attempt better backward compatibility for Array resize functions
John W. Eaton <jwe@octave.org>
parents: 11570
diff changeset
2300 retval.resize2 (k, 1);
9310
256c0db275b6 fix behavior of find
Jaroslav Hajek <highegg@gmail.com>
parents: 9237
diff changeset
2301 octave_idx_type *rdata = retval.fortran_vec ();
256c0db275b6 fix behavior of find
Jaroslav Hajek <highegg@gmail.com>
parents: 9237
diff changeset
2302 std::reverse (rdata, rdata + k);
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2303 }
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2304 else
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2305 {
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2306 // Do the search as a series of successive single-element searches.
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2307 octave_idx_type k = 0;
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2308 octave_idx_type l = 0;
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2309 for (; k < n; k++)
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2310 {
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
2311 for (; l != nel && src[l] == zero; l++) ;
9029
2df28ad88b0e small fix in Array::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9025
diff changeset
2312 if (l != nel)
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2313 retval(k) = l++;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2314 else
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2315 break;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2316 }
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2317 if (k < n)
11574
a83bad07f7e3 attempt better backward compatibility for Array resize functions
John W. Eaton <jwe@octave.org>
parents: 11570
diff changeset
2318 retval.resize2 (k, 1);
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2319 }
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2320 }
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2321
9046
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2322 // Fixup return dimensions, for Matlab compatibility.
15018
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
2323 // find (zeros (0,0)) -> zeros (0,0)
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
2324 // find (zeros (1,0)) -> zeros (1,0)
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
2325 // find (zeros (0,1)) -> zeros (0,1)
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
2326 // find (zeros (0,X)) -> zeros (0,1)
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
2327 // find (zeros (1,1)) -> zeros (0,0) !!!! WHY?
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
2328 // find (zeros (0,1,0)) -> zeros (0,0)
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
2329 // find (zeros (0,1,0,1)) -> zeros (0,0) etc
9046
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2330
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2331 if ((numel () == 1 && retval.is_empty ())
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2332 || (rows () == 0 && dims ().numel (1) == 0))
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2333 retval.dimensions = dim_vector ();
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2334 else if (rows () == 1 && ndims () == 2)
20442
a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
parents: 20438
diff changeset
2335 retval.dimensions = dim_vector (1, retval.numel ());
9046
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2336
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2337 return retval;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2338 }
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2339
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2340 template <class T>
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2341 Array<T>
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2342 Array<T>::nth_element (const idx_vector& n, int dim) const
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2343 {
10703
5eb420d92307 fix sort and nth_element when trailing singleton dim is specified
Jaroslav Hajek <highegg@gmail.com>
parents: 10681
diff changeset
2344 if (dim < 0)
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2345 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2346 (*current_liboctave_error_handler)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2347 ("nth_element: invalid dimension");
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2348 return Array<T> ();
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2349 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2350
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2351 dim_vector dv = dims ();
10703
5eb420d92307 fix sort and nth_element when trailing singleton dim is specified
Jaroslav Hajek <highegg@gmail.com>
parents: 10681
diff changeset
2352 if (dim >= dv.length ())
5eb420d92307 fix sort and nth_element when trailing singleton dim is specified
Jaroslav Hajek <highegg@gmail.com>
parents: 10681
diff changeset
2353 dv.resize (dim+1, 1);
5eb420d92307 fix sort and nth_element when trailing singleton dim is specified
Jaroslav Hajek <highegg@gmail.com>
parents: 10681
diff changeset
2354
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2355 octave_idx_type ns = dv(dim);
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2356
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2357 octave_idx_type nn = n.length (ns);
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2358
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2359 dv(dim) = std::min (nn, ns);
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2360 dv.chop_trailing_singletons ();
14440
3d4bea9accd7 Fix segfault on multidimensional median call (bug #35679).
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14158
diff changeset
2361 dim = std::min (dv.length (), dim);
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2362
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2363 Array<T> m (dv);
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2364
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2365 if (m.numel () == 0)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2366 return m;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2367
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2368 sortmode mode = UNSORTED;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2369 octave_idx_type lo = 0;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2370
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2371 switch (n.idx_class ())
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2372 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2373 case idx_vector::class_scalar:
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2374 mode = ASCENDING;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2375 lo = n(0);
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2376 break;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2377 case idx_vector::class_range:
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2378 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2379 octave_idx_type inc = n.increment ();
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2380 if (inc == 1)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2381 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2382 mode = ASCENDING;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2383 lo = n(0);
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2384 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2385 else if (inc == -1)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2386 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2387 mode = DESCENDING;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2388 lo = ns - 1 - n(0);
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2389 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2390 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2391 default:
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2392 break;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2393 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2394
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2395 if (mode == UNSORTED)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2396 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2397 (*current_liboctave_error_handler)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2398 ("nth_element: n must be a scalar or a contiguous range");
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2399 return Array<T> ();
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2400 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2401
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2402 octave_idx_type up = lo + nn;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2403
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2404 if (lo < 0 || up > ns)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2405 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2406 (*current_liboctave_error_handler)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2407 ("nth_element: invalid element index");
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2408 return Array<T> ();
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2409 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2410
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2411 octave_idx_type iter = numel () / ns;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2412 octave_idx_type stride = 1;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2413
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2414 for (int i = 0; i < dim; i++)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2415 stride *= dv(i);
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2416
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2417 T *v = m.fortran_vec ();
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2418 const T *ov = data ();
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2419
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2420 OCTAVE_LOCAL_BUFFER (T, buf, ns);
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2421
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2422 octave_sort<T> lsort;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2423 lsort.set_compare (mode);
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2424
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2425 for (octave_idx_type j = 0; j < iter; j++)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2426 {
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2427 octave_idx_type kl = 0;
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17769
diff changeset
2428 octave_idx_type ku = ns;
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2429
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2430 if (stride == 1)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2431 {
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
2432 // copy without NaNs.
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2433 // FIXME: impact on integer types noticeable?
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2434 for (octave_idx_type i = 0; i < ns; i++)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2435 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2436 T tmp = ov[i];
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2437 if (sort_isnan<T> (tmp))
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2438 buf[--ku] = tmp;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2439 else
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2440 buf[kl++] = tmp;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2441 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2442
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2443 ov += ns;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2444 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2445 else
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2446 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2447 octave_idx_type offset = j % stride;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
2448 // copy without NaNs.
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2449 // FIXME: impact on integer types noticeable?
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2450 for (octave_idx_type i = 0; i < ns; i++)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2451 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2452 T tmp = ov[offset + i*stride];
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2453 if (sort_isnan<T> (tmp))
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2454 buf[--ku] = tmp;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2455 else
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2456 buf[kl++] = tmp;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2457 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2458
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2459 if (offset == stride-1)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2460 ov += ns*stride;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2461 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2462
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2463 if (ku == ns)
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
2464 lsort.nth_element (buf, ns, lo, up);
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2465 else if (mode == ASCENDING)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2466 lsort.nth_element (buf, ku, lo, std::min (ku, up));
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2467 else
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2468 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2469 octave_idx_type nnan = ns - ku;
10258
e317791645c4 64-bit fixes
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
2470 octave_idx_type zero = 0;
e317791645c4 64-bit fixes
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
2471 lsort.nth_element (buf, ku, std::max (lo - nnan, zero),
e317791645c4 64-bit fixes
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
2472 std::max (up - nnan, zero));
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2473 std::rotate (buf, buf + ku, buf + ns);
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2474 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2475
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2476 if (stride == 1)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2477 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2478 for (octave_idx_type i = 0; i < nn; i++)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2479 v[i] = buf[lo + i];
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2480
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2481 v += nn;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2482 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2483 else
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2484 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2485 octave_idx_type offset = j % stride;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2486 for (octave_idx_type i = 0; i < nn; i++)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2487 v[offset + stride * i] = buf[lo + i];
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2488 if (offset == stride-1)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2489 v += nn*stride;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2490 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2491 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2492
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2493 return m;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2494 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2495
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2496 #define NO_INSTANTIATE_ARRAY_SORT(T) \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2497 \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2498 template <> Array<T> \
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2499 Array<T>::sort (int, sortmode) const { return *this; } \
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2500 \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2501 template <> Array<T> \
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2502 Array<T>::sort (Array<octave_idx_type> &sidx, int, sortmode) const \
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2503 { sidx = Array<octave_idx_type> (); return *this; } \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2504 \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2505 template <> sortmode \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2506 Array<T>::is_sorted (sortmode) const \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2507 { return UNSORTED; } \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2508 \
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
2509 Array<T>::compare_fcn_type \
9920
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2510 safe_comparator (sortmode, const Array<T>&, bool) \
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2511 { return 0; } \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2512 \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2513 template <> Array<octave_idx_type> \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2514 Array<T>::sort_rows_idx (sortmode) const \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2515 { return Array<octave_idx_type> (); } \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2516 \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2517 template <> sortmode \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2518 Array<T>::is_sorted_rows (sortmode) const \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2519 { return UNSORTED; } \
8814
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2520 \
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2521 template <> octave_idx_type \
9222
7bd406e12e4d instantiate Array<void *> in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 9201
diff changeset
2522 Array<T>::lookup (T const &, sortmode) const \
8814
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2523 { return 0; } \
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2524 template <> Array<octave_idx_type> \
9921
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2525 Array<T>::lookup (const Array<T>&, sortmode) const \
8814
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2526 { return Array<octave_idx_type> (); } \
9878
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2527 \
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2528 template <> octave_idx_type \
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2529 Array<T>::nnz (void) const\
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2530 { return 0; } \
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2531 template <> Array<octave_idx_type> \
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2532 Array<T>::find (octave_idx_type, bool) const\
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2533 { return Array<octave_idx_type> (); } \
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2534 \
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2535 template <> Array<T> \
20068
19755f4fc851 maint: Cleanup C++ code to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19898
diff changeset
2536 Array<T>::nth_element (const idx_vector&, int) const { return Array<T> (); }
19790
446c46af4b42 strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents: 17769
diff changeset
2537
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2538
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2539 template <class T>
7620
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2540 Array<T>
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2541 Array<T>::diag (octave_idx_type k) const
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2542 {
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2543 dim_vector dv = dims ();
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2544 octave_idx_type nd = dv.length ();
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2545 Array<T> d;
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2546
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2547 if (nd > 2)
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
2548 (*current_liboctave_error_handler) ("Matrix must be 2-dimensional");
7620
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2549 else
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2550 {
20428
b2100e1659ac maint: Use cuddled parentheses when indexing dimension_vectors.
Rik <rik@octave.org>
parents: 20068
diff changeset
2551 octave_idx_type nnr = dv(0);
b2100e1659ac maint: Use cuddled parentheses when indexing dimension_vectors.
Rik <rik@octave.org>
parents: 20068
diff changeset
2552 octave_idx_type nnc = dv(1);
7620
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2553
12550
ea3a4bf39048 Treat empty vector (1x0 or 0x1) as valid input to diag().
Rik <octave@nomad.inbox5.com>
parents: 12153
diff changeset
2554 if (nnr == 0 && nnc == 0)
ea3a4bf39048 Treat empty vector (1x0 or 0x1) as valid input to diag().
Rik <octave@nomad.inbox5.com>
parents: 12153
diff changeset
2555 ; // do nothing for empty matrix
7620
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2556 else if (nnr != 1 && nnc != 1)
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2557 {
12550
ea3a4bf39048 Treat empty vector (1x0 or 0x1) as valid input to diag().
Rik <octave@nomad.inbox5.com>
parents: 12153
diff changeset
2558 // Extract diag from matrix
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2559 if (k > 0)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2560 nnc -= k;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2561 else if (k < 0)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2562 nnr += k;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2563
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2564 if (nnr > 0 && nnc > 0)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2565 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2566 octave_idx_type ndiag = (nnr < nnc) ? nnr : nnc;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2567
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2568 d.resize (dim_vector (ndiag, 1));
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2569
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2570 if (k > 0)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2571 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2572 for (octave_idx_type i = 0; i < ndiag; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2573 d.xelem (i) = elem (i, i+k);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2574 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2575 else if (k < 0)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2576 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2577 for (octave_idx_type i = 0; i < ndiag; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2578 d.xelem (i) = elem (i-k, i);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2579 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2580 else
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2581 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2582 for (octave_idx_type i = 0; i < ndiag; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2583 d.xelem (i) = elem (i, i);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2584 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2585 }
18145
a86d608c413c Return empty matrix rather than issuing error when requested diagonal is out of range.
Marco Caliari <marco.caliari@univr.it>
parents: 18098
diff changeset
2586 else // Matlab returns [] 0x1 for out-of-range diagonal
a86d608c413c Return empty matrix rather than issuing error when requested diagonal is out of range.
Marco Caliari <marco.caliari@univr.it>
parents: 18098
diff changeset
2587 d.resize (dim_vector (0, 1));
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2588 }
12550
ea3a4bf39048 Treat empty vector (1x0 or 0x1) as valid input to diag().
Rik <octave@nomad.inbox5.com>
parents: 12153
diff changeset
2589 else
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2590 {
13141
e81ddf9cacd5 maint: untabify and remove trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 12884
diff changeset
2591 // Create diag matrix from vector
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2592 octave_idx_type roff = 0;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2593 octave_idx_type coff = 0;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2594 if (k > 0)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2595 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2596 roff = 0;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2597 coff = k;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2598 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2599 else if (k < 0)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2600 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2601 roff = -k;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2602 coff = 0;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2603 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2604
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2605 if (nnr == 1)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2606 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2607 octave_idx_type n = nnc + std::abs (k);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2608 d = Array<T> (dim_vector (n, n), resize_fill_value ());
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2609
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2610 for (octave_idx_type i = 0; i < nnc; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2611 d.xelem (i+roff, i+coff) = elem (0, i);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2612 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2613 else
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2614 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2615 octave_idx_type n = nnr + std::abs (k);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2616 d = Array<T> (dim_vector (n, n), resize_fill_value ());
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2617
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2618 for (octave_idx_type i = 0; i < nnr; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2619 d.xelem (i+roff, i+coff) = elem (i, 0);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2620 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2621 }
7620
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2622 }
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2623
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2624 return d;
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2625 }
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2626
4517
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
2627 template <class T>
10531
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2628 Array<T>
14557
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2629 Array<T>::diag (octave_idx_type m, octave_idx_type n) const
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2630 {
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2631 Array<T> retval;
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2632
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2633 if (ndims () == 2 && (rows () == 1 || cols () == 1))
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2634 {
14591
6b7e9724912a Silence warning about deprecated resize() call
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14557
diff changeset
2635 retval.resize (dim_vector (m, n), resize_fill_value ());
14557
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2636
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2637 for (octave_idx_type i = 0; i < numel (); i++)
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2638 retval.xelem (i, i) = xelem (i);
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2639 }
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2640 else
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2641 (*current_liboctave_error_handler)
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2642 ("cat: invalid dimension");
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2643
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2644 return retval;
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2645 }
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2646
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2647 template <class T>
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099)
John W. Eaton <jwe@octave.org>
parents: 14446
diff changeset
2648 Array<T>
10531
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2649 Array<T>::cat (int dim, octave_idx_type n, const Array<T> *array_list)
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2650 {
10716
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2651 // Default concatenation.
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2652 bool (dim_vector::*concat_rule) (const dim_vector&, int) = &dim_vector::concat;
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2653
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2654 if (dim == -1 || dim == -2)
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2655 {
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2656 concat_rule = &dim_vector::hvcat;
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2657 dim = -dim - 1;
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2658 }
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2659 else if (dim < 0)
10531
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2660 (*current_liboctave_error_handler)
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2661 ("cat: invalid dimension");
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2662
10535
3f973f6c841c improve sparse concatenation operator
Jaroslav Hajek <highegg@gmail.com>
parents: 10533
diff changeset
2663 if (n == 1)
3f973f6c841c improve sparse concatenation operator
Jaroslav Hajek <highegg@gmail.com>
parents: 10533
diff changeset
2664 return array_list[0];
10681
0ba9bd294421 make cat() (hopefully) more matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10674
diff changeset
2665 else if (n == 0)
0ba9bd294421 make cat() (hopefully) more matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10674
diff changeset
2666 return Array<T> ();
0ba9bd294421 make cat() (hopefully) more matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10674
diff changeset
2667
11241
80e01d79cf80 special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11210
diff changeset
2668 // Special case:
80e01d79cf80 special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11210
diff changeset
2669 //
11242
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2670 // cat (dim, [], ..., [], A, ...)
11241
80e01d79cf80 special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11210
diff changeset
2671 //
80e01d79cf80 special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11210
diff changeset
2672 // with dim > 2, A not 0x0, and at least three arguments to
11242
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2673 // concatenate is equivalent to
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2674 //
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2675 // cat (dim, A, ...)
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2676 //
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2677 // Note that this check must be performed here because for full-on
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2678 // braindead Matlab compatibility, we need to have things like
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2679 //
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2680 // cat (3, [], [], A)
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2681 //
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2682 // succeed, but to have things like
11241
80e01d79cf80 special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11210
diff changeset
2683 //
80e01d79cf80 special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11210
diff changeset
2684 // cat (3, cat (3, [], []), A)
80e01d79cf80 special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11210
diff changeset
2685 // cat (3, zeros (0, 0, 2), A)
80e01d79cf80 special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11210
diff changeset
2686 //
11242
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2687 // fail. See also bug report #31615.
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2688
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2689 octave_idx_type istart = 0;
11241
80e01d79cf80 special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11210
diff changeset
2690
80e01d79cf80 special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11210
diff changeset
2691 if (n > 2 && dim > 1)
80e01d79cf80 special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11210
diff changeset
2692 {
11242
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2693 for (octave_idx_type i = 0; i < n; i++)
11241
80e01d79cf80 special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11210
diff changeset
2694 {
11242
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2695 dim_vector dv = array_list[i].dims ();
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2696
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2697 if (dv.zero_by_zero ())
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2698 istart++;
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2699 else
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2700 break;
11241
80e01d79cf80 special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11210
diff changeset
2701 }
11242
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2702
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2703 // Don't skip any initial aguments if they are all empty.
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2704 if (istart >= n)
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2705 istart = 0;
11241
80e01d79cf80 special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11210
diff changeset
2706 }
80e01d79cf80 special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11210
diff changeset
2707
11242
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2708 dim_vector dv = array_list[istart++].dims ();
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2709
0090bb47d0b5 simplify special case for concatenation of empty matrices
John W. Eaton <jwe@octave.org>
parents: 11241
diff changeset
2710 for (octave_idx_type i = istart; i < n; i++)
10716
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2711 if (! (dv.*concat_rule) (array_list[i].dims (), dim))
10531
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2712 (*current_liboctave_error_handler)
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2713 ("cat: dimension mismatch");
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2714
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2715 Array<T> retval (dv);
10716
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2716
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2717 if (retval.is_empty ())
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2718 return retval;
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2719
10533
f094ac9bc93e reuse Array<T>::cat and Sparse<T>::cat in cat/horzcat/vertcat
Jaroslav Hajek <highegg@gmail.com>
parents: 10531
diff changeset
2720 int nidx = std::max (dv.length (), dim + 1);
11570
57632dea2446 attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
2721 Array<idx_vector> idxa (dim_vector (nidx, 1), idx_vector::colon);
10531
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2722 octave_idx_type l = 0;
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2723
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2724 for (octave_idx_type i = 0; i < n; i++)
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2725 {
10716
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2726 // NOTE: This takes some thinking, but no matter what the above rules
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2727 // are, an empty array can always be skipped at this point, because
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2728 // the result dimensions are already determined, and there is no way
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2729 // an empty array may contribute a nonzero piece along the dimension
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2730 // at this point, unless an empty array can be promoted to a non-empty
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2731 // one (which makes no sense). I repeat, *no way*, think about it.
f7f26094021b improve cat code design in data.cc, make horzcat/vertcat more Matlab compatible
Jaroslav Hajek <highegg@gmail.com>
parents: 10703
diff changeset
2732 if (array_list[i].is_empty ())
10533
f094ac9bc93e reuse Array<T>::cat and Sparse<T>::cat in cat/horzcat/vertcat
Jaroslav Hajek <highegg@gmail.com>
parents: 10531
diff changeset
2733 continue;
f094ac9bc93e reuse Array<T>::cat and Sparse<T>::cat in cat/horzcat/vertcat
Jaroslav Hajek <highegg@gmail.com>
parents: 10531
diff changeset
2734
f094ac9bc93e reuse Array<T>::cat and Sparse<T>::cat in cat/horzcat/vertcat
Jaroslav Hajek <highegg@gmail.com>
parents: 10531
diff changeset
2735 octave_quit ();
f094ac9bc93e reuse Array<T>::cat and Sparse<T>::cat in cat/horzcat/vertcat
Jaroslav Hajek <highegg@gmail.com>
parents: 10531
diff changeset
2736
10531
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2737 octave_idx_type u;
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2738 if (dim < array_list[i].ndims ())
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2739 u = l + array_list[i].dims ()(dim);
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2740 else
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2741 u = l + 1;
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2742
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2743 idxa(dim) = idx_vector (l, u);
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2744
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2745 retval.assign (idxa, array_list[i]);
10533
f094ac9bc93e reuse Array<T>::cat and Sparse<T>::cat in cat/horzcat/vertcat
Jaroslav Hajek <highegg@gmail.com>
parents: 10531
diff changeset
2746
f094ac9bc93e reuse Array<T>::cat and Sparse<T>::cat in cat/horzcat/vertcat
Jaroslav Hajek <highegg@gmail.com>
parents: 10531
diff changeset
2747 l = u;
10531
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2748 }
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2749
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2750 return retval;
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2751 }
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2752
2dd8ea8bfd71 basic cat functionality in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 10512
diff changeset
2753 template <class T>
4517
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
2754 void
3933
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3657
diff changeset
2755 Array<T>::print_info (std::ostream& os, const std::string& prefix) const
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3657
diff changeset
2756 {
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
2757 os << prefix << "rep address: " << rep << '\n'
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
2758 << prefix << "rep->len: " << rep->len << '\n'
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
2759 << prefix << "rep->data: " << static_cast<void *> (rep->data) << '\n'
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
2760 << prefix << "rep->count: " << rep->count << '\n'
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
2761 << prefix << "slice_data: " << static_cast<void *> (slice_data) << '\n'
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
2762 << prefix << "slice_len: " << slice_len << '\n';
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
2763
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
2764 // 2D info:
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
2765 //
4657
a585a2dfca6c [project @ 2003-11-25 01:30:09 by jwe]
jwe
parents: 4656
diff changeset
2766 // << pefix << "rows: " << rows () << "\n"
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
2767 // << prefix << "cols: " << cols () << "\n";
3933
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3657
diff changeset
2768 }
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3657
diff changeset
2769
9201
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2770 template <class T>
10674
e3064439d6b4 new Array method for internal use
Jaroslav Hajek <highegg@gmail.com>
parents: 10673
diff changeset
2771 bool Array<T>::optimize_dimensions (const dim_vector& dv)
e3064439d6b4 new Array method for internal use
Jaroslav Hajek <highegg@gmail.com>
parents: 10673
diff changeset
2772 {
e3064439d6b4 new Array method for internal use
Jaroslav Hajek <highegg@gmail.com>
parents: 10673
diff changeset
2773 bool retval = dimensions == dv;
e3064439d6b4 new Array method for internal use
Jaroslav Hajek <highegg@gmail.com>
parents: 10673
diff changeset
2774 if (retval)
e3064439d6b4 new Array method for internal use
Jaroslav Hajek <highegg@gmail.com>
parents: 10673
diff changeset
2775 dimensions = dv;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11574
diff changeset
2776
10674
e3064439d6b4 new Array method for internal use
Jaroslav Hajek <highegg@gmail.com>
parents: 10673
diff changeset
2777 return retval;
e3064439d6b4 new Array method for internal use
Jaroslav Hajek <highegg@gmail.com>
parents: 10673
diff changeset
2778 }
e3064439d6b4 new Array method for internal use
Jaroslav Hajek <highegg@gmail.com>
parents: 10673
diff changeset
2779
e3064439d6b4 new Array method for internal use
Jaroslav Hajek <highegg@gmail.com>
parents: 10673
diff changeset
2780 template <class T>
9201
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2781 void Array<T>::instantiation_guard ()
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2782 {
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2783 // This guards against accidental implicit instantiations.
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2784 // Array<T> instances should always be explicit and use INSTANTIATE_ARRAY.
14846
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents: 14625
diff changeset
2785 T::__xXxXx__ ();
9201
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2786 }
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2787
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2788 #define INSTANTIATE_ARRAY(T, API) \
9201
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2789 template <> void Array<T>::instantiation_guard () { } \
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2790 template class API Array<T>
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2791
9732
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2792 // FIXME: is this used?
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2793
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2794 template <class T>
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2795 std::ostream&
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2796 operator << (std::ostream& os, const Array<T>& a)
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2797 {
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2798 dim_vector a_dims = a.dims ();
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2799
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2800 int n_dims = a_dims.length ();
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2801
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2802 os << n_dims << "-dimensional array";
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2803
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2804 if (n_dims)
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2805 os << " (" << a_dims.str () << ")";
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2806
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2807 os <<"\n\n";
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2808
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2809 if (n_dims)
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2810 {
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2811 os << "data:";
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2812
11570
57632dea2446 attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
2813 Array<octave_idx_type> ra_idx (dim_vector (n_dims, 1), 0);
9732
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2814
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2815 // Number of times the first 2d-array is to be displayed.
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2816
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2817 octave_idx_type m = 1;
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2818 for (int i = 2; i < n_dims; i++)
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2819 m *= a_dims(i);
9732
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2820
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2821 if (m == 1)
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2822 {
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2823 octave_idx_type rows = 0;
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2824 octave_idx_type cols = 0;
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2825
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2826 switch (n_dims)
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2827 {
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2828 case 2:
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2829 rows = a_dims(0);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2830 cols = a_dims(1);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2831
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2832 for (octave_idx_type j = 0; j < rows; j++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2833 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2834 ra_idx(0) = j;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2835 for (octave_idx_type k = 0; k < cols; k++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2836 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2837 ra_idx(1) = k;
15018
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
2838 os << " " << a.elem (ra_idx);
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2839 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2840 os << "\n";
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2841 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2842 break;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2843
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2844 default:
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2845 rows = a_dims(0);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2846
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2847 for (octave_idx_type k = 0; k < rows; k++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2848 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2849 ra_idx(0) = k;
15018
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
2850 os << " " << a.elem (ra_idx);
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2851 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2852 break;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2853 }
9732
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2854
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2855 os << "\n";
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2856 }
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2857 else
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2858 {
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2859 octave_idx_type rows = a_dims(0);
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2860 octave_idx_type cols = a_dims(1);
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2861
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2862 for (int i = 0; i < m; i++)
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2863 {
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2864 os << "\n(:,:,";
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2865
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2866 for (int j = 2; j < n_dims - 1; j++)
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2867 os << ra_idx(j) + 1 << ",";
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2868
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2869 os << ra_idx(n_dims - 1) + 1 << ") = \n";
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2870
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2871 for (octave_idx_type j = 0; j < rows; j++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2872 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2873 ra_idx(0) = j;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2874
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2875 for (octave_idx_type k = 0; k < cols; k++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2876 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2877 ra_idx(1) = k;
15018
3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/.
Rik <rik@octave.org>
parents: 14846
diff changeset
2878 os << " " << a.elem (ra_idx);
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2879 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2880
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2881 os << "\n";
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2882 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2883
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2884 os << "\n";
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2885
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2886 if (i != m - 1)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2887 increment_index (ra_idx, a_dims, 2);
9732
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2888 }
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2889 }
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2890 }
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2891
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2892 return os;
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2893 }