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annotate liboctave/Array.cc @ 10396:a0b51ac0f88a

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optimize accumdim with summation
author Jaroslav Hajek <highegg@gmail.com>
date Fri, 05 Mar 2010 12:31:30 +0100
parents 9c4daf174387
children 0677c5d80b77
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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) 2008, 2009 Jaroslav Hajek
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5 Copyright (C) 1993, 1994, 1995, 1996, 1997, 2000, 2002, 2003, 2004,
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6 2005, 2006, 2007 John W. Eaton
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7 Copyright (C) 2009 VZLU Prague
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8
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9 This file is part of Octave.
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10
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11 Octave is free software; you can redistribute it and/or modify it
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12 under the terms of the GNU General Public License as published by the
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13 Free Software Foundation; either version 3 of the License, or (at your
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14 option) any later version.
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15
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16 Octave is distributed in the hope that it will be useful, but WITHOUT
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17 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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18 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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19 for more details.
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20
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21 You should have received a copy of the GNU General Public License
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22 along with Octave; see the file COPYING. If not, see
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23 <http://www.gnu.org/licenses/>.
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24
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25 */
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26
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27 #ifdef HAVE_CONFIG_H
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28 #include <config.h>
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29 #endif
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30
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31 #include <cassert>
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32 #include <climits>
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33
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34 #include <iostream>
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35 #include <sstream>
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36 #include <vector>
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37 #include <algorithm>
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38 #include <new>
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39
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40 #include "Array.h"
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41 #include "Array-util.h"
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42 #include "idx-vector.h"
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43 #include "lo-error.h"
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44 #include "oct-locbuf.h"
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45
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46 // One dimensional array class. Handles the reference counting for
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47 // all the derived classes.
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48
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49 template <class T>
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50 Array<T>::Array (const Array<T>& a, const dim_vector& dv)
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51 : rep (a.rep), dimensions (dv),
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52 slice_data (a.slice_data), slice_len (a.slice_len)
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53 {
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54 if (dimensions.safe_numel () != a.numel ())
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55 {
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56 std::string dimensions_str = a.dimensions.str ();
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57 std::string new_dims_str = dimensions.str ();
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58
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59 (*current_liboctave_error_handler)
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60 ("reshape: can't reshape %s array to %s array",
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61 dimensions_str.c_str (), new_dims_str.c_str ());
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62 }
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63
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64 // This goes here because if an exception is thrown by the above,
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65 // destructor will be never called.
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66 rep->count++;
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67 dimensions.chop_trailing_singletons ();
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68 }
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69
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70 template <class T>
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71 Array<T>::Array (const Array<T>& a, octave_idx_type nr, octave_idx_type nc)
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72 : rep (a.rep), dimensions (nr, nc),
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73 slice_data (a.slice_data), slice_len (a.slice_len)
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74 {
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75 if (dimensions.safe_numel () != a.numel ())
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76 {
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77 std::string dimensions_str = a.dimensions.str ();
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78 std::string new_dims_str = dimensions.str ();
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79
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80 (*current_liboctave_error_handler)
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81 ("reshape: can't reshape %s array to %s array",
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82 dimensions_str.c_str (), new_dims_str.c_str ());
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83 }
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84
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85 // This goes here because if an exception is thrown by the above,
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86 // destructor will be never called.
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87 rep->count++;
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88 dimensions.chop_trailing_singletons ();
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89 }
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90
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91 template <class T>
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92 void
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93 Array<T>::fill (const T& val)
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94 {
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95 if (rep->count > 1)
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96 {
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97 --rep->count;
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98 rep = new ArrayRep (length (), val);
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99 slice_data = rep->data;
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100 }
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101 else
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102 fill_or_memset (slice_len, val, slice_data);
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103 }
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104
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105 template <class T>
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106 void
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107 Array<T>::clear (void)
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108 {
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109 if (--rep->count <= 0)
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110 delete rep;
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111
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112 rep = nil_rep ();
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113 rep->count++;
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114 slice_data = rep->data;
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115 slice_len = rep->len;
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116
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117 dimensions = dim_vector ();
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118 }
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119
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120 template <class T>
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121 void
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122 Array<T>::clear (const dim_vector& dv)
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123 {
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124 if (--rep->count <= 0)
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125 delete rep;
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126
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127 rep = new ArrayRep (dv.safe_numel ());
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128 slice_data = rep->data;
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129 slice_len = rep->len;
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130
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131 dimensions = dv;
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132 dimensions.chop_trailing_singletons ();
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133 }
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134
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135 template <class T>
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136 Array<T>
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137 Array<T>::squeeze (void) const
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138 {
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139 Array<T> retval = *this;
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140
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141 if (ndims () > 2)
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142 {
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143 bool dims_changed = false;
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144
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145 dim_vector new_dimensions = dimensions;
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146
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147 int k = 0;
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148
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149 for (int i = 0; i < ndims (); i++)
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150 {
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151 if (dimensions(i) == 1)
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152 dims_changed = true;
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153 else
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154 new_dimensions(k++) = dimensions(i);
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155 }
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156
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157 if (dims_changed)
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158 {
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diff changeset
159 switch (k)
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160 {
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161 case 0:
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162 new_dimensions = dim_vector (1, 1);
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163 break;
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164
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165 case 1:
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166 {
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167 octave_idx_type tmp = new_dimensions(0);
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168
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169 new_dimensions.resize (2);
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170
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171 new_dimensions(0) = tmp;
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172 new_dimensions(1) = 1;
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173 }
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174 break;
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175
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176 default:
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177 new_dimensions.resize (k);
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178 break;
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179 }
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180 }
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181
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182 retval = Array<T> (*this, new_dimensions);
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183 }
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184
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185 return retval;
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186 }
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187
237
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188 template <class T>
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189 octave_idx_type
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190 Array<T>::compute_index (const Array<octave_idx_type>& ra_idx) const
237
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191 {
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192 octave_idx_type retval = 0;
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193
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194 int n = dimensions.length (), ni = ra_idx.length ();
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195
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196 while (ni > n)
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197 retval += ra_idx(--ni);
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198
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199 while (ni > 0)
237
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200 {
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201 retval *= dimensions(--ni);
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202 retval += ra_idx(ni);
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203 }
237
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204
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205 return retval;
237
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206 }
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207
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208 template <class T>
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209 T&
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diff changeset
210 Array<T>::checkelem (octave_idx_type n)
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211 {
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212 if (n < 0)
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213 gripe_invalid_index ();
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214 if (n >= slice_len)
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215 gripe_index_out_of_range (1, 1, n+1, slice_len);
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216
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217 return elem (n);
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218 }
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219
3933
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220 template <class T>
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221 T&
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222 Array<T>::checkelem (octave_idx_type i, octave_idx_type j)
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223 {
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224 if (i < 0 || j < 0)
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225 gripe_invalid_index ();
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226 if (i >= dim1 ())
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227 gripe_index_out_of_range (2, 1, i+1, dim1 ());
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228 if (j >= dimensions.numel (1))
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229 gripe_index_out_of_range (2, 2, j+1, dimensions.numel (1));
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230
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231 return elem (i, j);
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232 }
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233
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234 template <class T>
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diff changeset
235 T&
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diff changeset
236 Array<T>::checkelem (octave_idx_type i, octave_idx_type j, octave_idx_type k)
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diff changeset
237 {
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diff changeset
238 if (i < 0 || j < 0 || k < 0)
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diff changeset
239 gripe_invalid_index ();
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diff changeset
240 if (i >= dim1 ())
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241 gripe_index_out_of_range (3, 1, i+1, dim1 ());
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diff changeset
242 if (j >= dim2 ())
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diff changeset
243 gripe_index_out_of_range (3, 2, j+1, dim2 ());
10370
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diff changeset
244 if (k >= dimensions.numel (2))
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diff changeset
245 gripe_index_out_of_range (3, 3, k+1, dimensions.numel (2));
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diff changeset
246
e5ae13b8b2c2 improve Array indexing error messages
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diff changeset
247 return elem (i, j, k);
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diff changeset
248 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
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diff changeset
249
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
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diff changeset
250 template <class T>
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diff changeset
251 T&
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diff changeset
252 Array<T>::checkelem (const Array<octave_idx_type>& ra_idx)
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diff changeset
253 {
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diff changeset
254 int nd = ra_idx.length ();
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diff changeset
255 const dim_vector dv = dimensions.redim (nd);
e5ae13b8b2c2 improve Array indexing error messages
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diff changeset
256 for (int d = 0; d < nd; d++)
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diff changeset
257 {
9c4daf174387 implement IDs for common liboctave exceptions
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diff changeset
258 if (ra_idx(d) < 0)
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diff changeset
259 gripe_invalid_index ();
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diff changeset
260 if (ra_idx(d) >= dv(d))
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diff changeset
261 gripe_index_out_of_range (nd, d+1, ra_idx(d)+1, dv(d));
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diff changeset
262 }
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diff changeset
263
e5ae13b8b2c2 improve Array indexing error messages
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diff changeset
264 return elem (ra_idx);
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diff changeset
265 }
e5ae13b8b2c2 improve Array indexing error messages
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diff changeset
266
e5ae13b8b2c2 improve Array indexing error messages
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diff changeset
267 template <class T>
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diff changeset
268 typename Array<T>::crefT
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diff changeset
269 Array<T>::checkelem (octave_idx_type n) const
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diff changeset
270 {
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diff changeset
271 if (n < 0)
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diff changeset
272 gripe_invalid_index ();
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diff changeset
273 if (n >= slice_len)
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274 gripe_index_out_of_range (1, 1, n+1, slice_len);
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diff changeset
275
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diff changeset
276 return elem (n);
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277 }
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278
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
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diff changeset
279 template <class T>
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diff changeset
280 typename Array<T>::crefT
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diff changeset
281 Array<T>::checkelem (octave_idx_type i, octave_idx_type j) const
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diff changeset
282 {
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283 if (i < 0 || j < 0)
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diff changeset
284 gripe_invalid_index ();
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diff changeset
285 if (i >= dim1 ())
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diff changeset
286 gripe_index_out_of_range (2, 1, i+1, dim1 ());
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diff changeset
287 if (j >= dimensions.numel (1))
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diff changeset
288 gripe_index_out_of_range (2, 2, j+1, dimensions.numel (1));
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diff changeset
289
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diff changeset
290 return elem (i, j);
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diff changeset
291 }
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diff changeset
292
e5ae13b8b2c2 improve Array indexing error messages
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diff changeset
293 template <class T>
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diff changeset
294 typename Array<T>::crefT
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diff changeset
295 Array<T>::checkelem (octave_idx_type i, octave_idx_type j, octave_idx_type k) const
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296 {
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297 if (i < 0 || j < 0 || k < 0)
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diff changeset
298 gripe_invalid_index ();
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299 if (i >= dim1 ())
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300 gripe_index_out_of_range (3, 1, i+1, dim1 ());
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301 if (j >= dim2 ())
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302 gripe_index_out_of_range (3, 2, j+1, dim2 ());
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303 if (k >= dimensions.numel (2))
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304 gripe_index_out_of_range (3, 3, k+1, dimensions.numel (2));
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305
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306 return elem (i, j, k);
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307 }
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308
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309 template <class T>
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310 typename Array<T>::crefT
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311 Array<T>::checkelem (const Array<octave_idx_type>& ra_idx) const
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312 {
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313 int nd = ra_idx.length ();
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314 const dim_vector dv = dimensions.redim (nd);
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315 for (int d = 0; d < nd; d++)
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316 {
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317 if (ra_idx(d) < 0)
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318 gripe_invalid_index ();
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319 if (ra_idx(d) >= dv(d))
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320 gripe_index_out_of_range (nd, d+1, ra_idx(d)+1, dv(d));
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321 }
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322
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323 return elem (ra_idx);
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324 }
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325
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326 template <class T>
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327 Array<T>
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328 Array<T>::column (octave_idx_type k) const
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329 {
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330 octave_idx_type r = dimensions(0);
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331 #ifdef BOUNDS_CHECKING
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332 if (k < 0 || k > dimensions.numel (1))
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333 gripe_index_out_of_range (2, 2, k+1, dimensions.numel (1));
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334 #endif
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335
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336 return Array<T> (*this, dim_vector (r, 1), k*r, k*r + r);
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337 }
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338
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339 template <class T>
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340 Array<T>
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341 Array<T>::page (octave_idx_type k) const
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342 {
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343 octave_idx_type r = dimensions(0), c = dimensions (1), p = r*c;
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344 #ifdef BOUNDS_CHECKING
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345 if (k < 0 || k > dimensions.numel (2))
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346 gripe_index_out_of_range (3, 3, k+1, dimensions.numel (2));
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347 #endif
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348
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349 return Array<T> (*this, dim_vector (r, c), k*p, k*p + p);
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350 }
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351
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352 template <class T>
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353 Array<T>
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354 Array<T>::linearize (void) const
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355 {
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356 octave_idx_type n = numel ();
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357 return Array<T> (*this, dim_vector (n, 1), 0, n);
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358 }
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359
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360 template <class T>
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361 Array<T>
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362 Array<T>::linear_slice (octave_idx_type lo, octave_idx_type up) const
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363 {
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364 #ifdef BOUNDS_CHECKING
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365 if (lo < 0)
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366 gripe_index_out_of_range (1, 1, lo+1, numel ());
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367 if (up > numel ())
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368 gripe_index_out_of_range (1, 1, up, numel ());
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369 #endif
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370 if (up < lo) up = lo;
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371 return Array<T> (*this, dim_vector (up - lo, 1), lo, up);
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372 }
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373
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374 // Helper class for multi-d dimension permuting (generalized transpose).
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375 class rec_permute_helper
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376 {
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377 octave_idx_type *dim, *stride;
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378 bool use_blk;
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379 int top;
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380
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381 public:
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382 rec_permute_helper (const dim_vector& dv, const Array<octave_idx_type>& perm)
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383 {
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384 int n = dv.length ();
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385 assert (n == perm.length ());
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386
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387 dim = new octave_idx_type [2*n];
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388 // A hack to avoid double allocation
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389 stride = dim + n;
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390
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391 // Get cumulative dimensions.
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392 OCTAVE_LOCAL_BUFFER (octave_idx_type, cdim, n+1);
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393 cdim[0] = 1;
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394 for (int i = 1; i < n+1; i++) cdim[i] = cdim[i-1] * dv(i-1);
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395
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396 // Setup the permuted strides.
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397 for (int k = 0; k < n; k++)
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398 {
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399 int kk = perm(k);
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400 dim[k] = dv(kk);
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401 stride[k] = cdim[kk];
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402 }
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403
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404 // Reduce contiguous runs.
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405 top = 0;
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406 for (int k = 1; k < n; k++)
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407 {
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408 if (stride[k] == stride[top]*dim[top])
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409 dim[top] *= dim[k];
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410 else
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411 {
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412 top++;
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413 dim[top] = dim[k];
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414 stride[top] = stride[k];
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415 }
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416 }
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417
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418 // Determine whether we can use block transposes.
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419 use_blk = top >= 1 && stride[1] == 1 && stride[0] == dim[1];
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420
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421 }
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422
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423 ~rec_permute_helper (void) { delete [] dim; }
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424
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425 // Helper method for fast blocked transpose.
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426 template <class T>
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427 static T *
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428 blk_trans (const T *src, T *dest, octave_idx_type nr, octave_idx_type nc)
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429 {
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430 static const octave_idx_type m = 8;
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431 OCTAVE_LOCAL_BUFFER (T, blk, m*m);
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432 for (octave_idx_type kr = 0; kr < nr; kr += m)
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433 for (octave_idx_type kc = 0; kc < nc; kc += m)
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434 {
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435 octave_idx_type lr = std::min (m, nr - kr);
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436 octave_idx_type lc = std::min (m, nc - kc);
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437 if (lr == m && lc == m)
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438 {
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439 const T *ss = src + kc * nr + kr;
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440 for (octave_idx_type j = 0; j < m; j++)
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441 for (octave_idx_type i = 0; i < m; i++)
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442 blk[j*m+i] = ss[j*nr + i];
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443 T *dd = dest + kr * nc + kc;
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444 for (octave_idx_type j = 0; j < m; j++)
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
445 for (octave_idx_type i = 0; i < m; i++)
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
446 dd[j*nc+i] = blk[i*m+j];
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
447 }
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
448 else
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
449 {
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
450 const T *ss = src + kc * nr + kr;
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
451 for (octave_idx_type j = 0; j < lc; j++)
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
452 for (octave_idx_type i = 0; i < lr; i++)
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
453 blk[j*m+i] = ss[j*nr + i];
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
454 T *dd = dest + kr * nc + kc;
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
455 for (octave_idx_type j = 0; j < lr; j++)
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
456 for (octave_idx_type i = 0; i < lc; i++)
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
457 dd[j*nc+i] = blk[i*m+j];
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
458 }
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
459 }
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
460
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
461 return dest + nr*nc;
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
462 }
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
463 private:
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
464
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
465 // Recursive N-d generalized transpose
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
466 template <class T>
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
467 T *do_permute (const T *src, T *dest, int lev) const
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
468 {
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
469 if (lev == 0)
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
470 {
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
471 octave_idx_type step = stride[0], len = dim[0];
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
472 if (step == 1)
9773
01f897d8a130 optimize memory manipulation by arrays & indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 9732
diff changeset
473 {
9780
6dafc60dde31 rename oct-mem functions
Jaroslav Hajek <highegg@gmail.com>
parents: 9773
diff changeset
474 copy_or_memcpy (len, src, dest);
9773
01f897d8a130 optimize memory manipulation by arrays & indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 9732
diff changeset
475 dest += len;
01f897d8a130 optimize memory manipulation by arrays & indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 9732
diff changeset
476 }
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
477 else
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
478 {
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
479 for (octave_idx_type i = 0, j = 0; i < len; i++, j += step)
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
480 dest[i] = src[j];
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
481
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
482 dest += len;
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
483 }
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
484 }
9012
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
485 else if (use_blk && lev == 1)
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
486 dest = blk_trans (src, dest, dim[1], dim[0]);
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
487 else
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
488 {
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
489 octave_idx_type step = stride[lev], len = dim[lev];
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
490 for (octave_idx_type i = 0, j = 0; i < len; i++, j+= step)
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
491 dest = do_permute (src + i * step, dest, lev-1);
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
492 }
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
493
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
494 return dest;
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
495 }
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
496
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
497 public:
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
498
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
499 template <class T>
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
500 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
501
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
502 };
7241
da540e715d05 [project @ 2007-12-03 22:55:20 by jwe]
jwe
parents: 7189
diff changeset
503
5607
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
504
4567
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe]
jwe
parents: 4553
diff changeset
505 template <class T>
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
506 Array<T>
5607
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
507 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
508 {
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
509 Array<T> retval;
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
510
5607
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
511 Array<octave_idx_type> perm_vec = perm_vec_arg;
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
512
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
513 dim_vector dv = dims ();
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
514
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
515 int perm_vec_len = perm_vec_arg.length ();
5148
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
516
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
517 if (perm_vec_len < dv.length ())
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
518 (*current_liboctave_error_handler)
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
519 ("%s: invalid permutation vector", inv ? "ipermute" : "permute");
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
520
9507
b096d11237be dim_vector improvements
Jaroslav Hajek <highegg@gmail.com>
parents: 9341
diff changeset
521 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
522
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
523 // Append singleton dimensions as needed.
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
524 dv.resize (perm_vec_len, 1);
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
525
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
526 // Need this array to check for identical elements in permutation array.
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
527 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
528
9678
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes
Jaroslav Hajek <highegg@gmail.com>
parents: 9624
diff changeset
529 bool identity = true;
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes
Jaroslav Hajek <highegg@gmail.com>
parents: 9624
diff changeset
530
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
531 // Find dimension vector of permuted array.
5148
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
532 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
533 {
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
534 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
535 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
536 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
537 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
538 ("%s: permutation vector contains an invalid element",
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
539 inv ? "ipermute" : "permute");
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
540
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
541 return retval;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
542 }
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
543
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
544 if (checked[perm_elt])
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
545 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
546 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
547 ("%s: permutation vector cannot contain identical elements",
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
548 inv ? "ipermute" : "permute");
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
549
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
550 return retval;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
551 }
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
552 else
9678
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes
Jaroslav Hajek <highegg@gmail.com>
parents: 9624
diff changeset
553 {
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes
Jaroslav Hajek <highegg@gmail.com>
parents: 9624
diff changeset
554 checked[perm_elt] = true;
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes
Jaroslav Hajek <highegg@gmail.com>
parents: 9624
diff changeset
555 identity = identity && perm_elt == i;
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes
Jaroslav Hajek <highegg@gmail.com>
parents: 9624
diff changeset
556 }
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
557 }
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
558
9678
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes
Jaroslav Hajek <highegg@gmail.com>
parents: 9624
diff changeset
559 if (identity)
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes
Jaroslav Hajek <highegg@gmail.com>
parents: 9624
diff changeset
560 return *this;
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes
Jaroslav Hajek <highegg@gmail.com>
parents: 9624
diff changeset
561
5607
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
562 if (inv)
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
563 {
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
564 for (int i = 0; i < perm_vec_len; i++)
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
565 perm_vec(perm_vec_arg(i)) = i;
5607
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
566 }
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
567
10270
6ffed9bb5598 fix ipermute
Jaroslav Hajek <highegg@gmail.com>
parents: 10258
diff changeset
568 for (int i = 0; i < perm_vec_len; i++)
6ffed9bb5598 fix ipermute
Jaroslav Hajek <highegg@gmail.com>
parents: 10258
diff changeset
569 dv_new(i) = dv(perm_vec(i));
6ffed9bb5598 fix ipermute
Jaroslav Hajek <highegg@gmail.com>
parents: 10258
diff changeset
570
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
571 retval = Array<T> (dv_new);
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
572
5940
0dd8428bb260 [project @ 2006-08-18 17:50:23 by jwe]
jwe
parents: 5837
diff changeset
573 if (numel () > 0)
5607
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
574 {
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
575 rec_permute_helper rh (dv, perm_vec);
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
576 rh.permute (data (), retval.fortran_vec ());
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
577 }
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
578
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
579 return retval;
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
580 }
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
581
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
582 // Helper class for multi-d index reduction and recursive indexing/indexed assignment.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
583 // Rationale: we could avoid recursion using a state machine instead. However, using
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
584 // recursion is much more amenable to possible parallelization in the future.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
585 // Also, the recursion solution is cleaner and more understandable.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
586 class rec_index_helper
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
587 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
588 octave_idx_type *dim, *cdim;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
589 idx_vector *idx;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
590 int top;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
591
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
592 public:
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
593 rec_index_helper (const dim_vector& dv, const Array<idx_vector>& ia)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
594 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
595 int n = ia.length ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
596 assert (n > 0 && (dv.length () == std::max (n, 2)));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
597
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
598 dim = new octave_idx_type [2*n];
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
599 // A hack to avoid double allocation
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
600 cdim = dim + n;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
601 idx = new idx_vector [n];
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
602 top = 0;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
603
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
604 dim[0] = dv(0);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
605 cdim[0] = 1;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
606 idx[0] = ia(0);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
607
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
608 for (int i = 1; i < n; i++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
609 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
610 // Try reduction...
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
611 if (idx[top].maybe_reduce (dim[top], ia(i), dv(i)))
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
612 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
613 // Reduction successful, fold dimensions.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
614 dim[top] *= dv(i);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
615 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
616 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
617 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
618 // Unsuccessful, store index & cumulative dim.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
619 top++;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
620 idx[top] = ia(i);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
621 dim[top] = dv(i);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
622 cdim[top] = cdim[top-1] * dim[top-1];
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 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
625 }
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 ~rec_index_helper (void) { delete [] idx; delete [] dim; }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
628
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
629 private:
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
630
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
631 // Recursive N-d indexing
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
632 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
633 T *do_index (const T *src, T *dest, int lev) const
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
634 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
635 if (lev == 0)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
636 dest += idx[0].index (src, dim[0], dest);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
637 else
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 octave_idx_type n = idx[lev].length (dim[lev]), d = cdim[lev];
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
640 for (octave_idx_type i = 0; i < n; i++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
641 dest = do_index (src + d*idx[lev].xelem (i), dest, lev-1);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
642 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
643
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
644 return dest;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
645 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
646
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
647 // Recursive N-d indexed assignment
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
648 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
649 const T *do_assign (const T *src, T *dest, int lev) const
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
650 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
651 if (lev == 0)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
652 src += idx[0].assign (src, dim[0], dest);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
653 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
654 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
655 octave_idx_type n = idx[lev].length (dim[lev]), d = cdim[lev];
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
656 for (octave_idx_type i = 0; i < n; i++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
657 src = do_assign (src, dest + d*idx[lev].xelem (i), lev-1);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
658 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
659
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
660 return src;
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
661 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
662
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
663 // Recursive N-d indexed assignment
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
664 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
665 void do_fill (const T& val, T *dest, int lev) const
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
666 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
667 if (lev == 0)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
668 idx[0].fill (val, dim[0], dest);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
669 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
670 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
671 octave_idx_type n = idx[lev].length (dim[lev]), d = cdim[lev];
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
672 for (octave_idx_type i = 0; i < n; i++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
673 do_fill (val, dest + d*idx[lev].xelem (i), lev-1);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
674 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
675 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
676
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
677 public:
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
678
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
679 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
680 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
681
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
682 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
683 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
684
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
685 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
686 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
687
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
688 bool is_cont_range (octave_idx_type& l,
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
689 octave_idx_type& u) const
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
690 {
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
691 return top == 0 && idx[0].is_cont_range (dim[0], l, u);
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
692 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
693 };
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
694
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
695 // Helper class for multi-d recursive resizing
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
696 // This handles resize () in an efficient manner, touching memory only
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
697 // once (apart from reinitialization)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
698 class rec_resize_helper
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
699 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
700 octave_idx_type *cext, *sext, *dext;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
701 int n;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
702
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
703 public:
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
704 rec_resize_helper (const dim_vector& ndv, const dim_vector& odv)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
705 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
706 int l = ndv.length ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
707 assert (odv.length () == l);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
708 octave_idx_type ld = 1;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
709 int i = 0;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
710 for (; i < l-1 && ndv(i) == odv(i); i++) ld *= ndv(i);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
711 n = l - i;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
712 cext = new octave_idx_type[3*n];
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
713 // Trick to avoid three allocations
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
714 sext = cext + n;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
715 dext = sext + n;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
716
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
717 octave_idx_type sld = ld, dld = ld;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
718 for (int j = 0; j < n; j++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
719 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
720 cext[j] = std::min (ndv(i+j), odv(i+j));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
721 sext[j] = sld *= odv(i+j);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
722 dext[j] = dld *= ndv(i+j);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
723 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
724 cext[0] *= ld;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
725 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
726
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
727 ~rec_resize_helper (void) { delete [] cext; }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
728
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
729 private:
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
730 // recursive resizing
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
731 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
732 void do_resize_fill (const T* src, T *dest, const T& rfv, int lev) const
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
733 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
734 if (lev == 0)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
735 {
9780
6dafc60dde31 rename oct-mem functions
Jaroslav Hajek <highegg@gmail.com>
parents: 9773
diff changeset
736 copy_or_memcpy (cext[0], src, dest);
6dafc60dde31 rename oct-mem functions
Jaroslav Hajek <highegg@gmail.com>
parents: 9773
diff changeset
737 fill_or_memset (dext[0] - cext[0], rfv, dest + cext[0]);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
738 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
739 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
740 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
741 octave_idx_type sd = sext[lev-1], dd = dext[lev-1], k;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
742 for (k = 0; k < cext[lev]; k++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
743 do_resize_fill (src + k * sd, dest + k * dd, rfv, lev - 1);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
744
9780
6dafc60dde31 rename oct-mem functions
Jaroslav Hajek <highegg@gmail.com>
parents: 9773
diff changeset
745 fill_or_memset (dext[lev] - k * dd, rfv, dest + k * dd);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
746 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
747 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
748 public:
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
749 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
750 void resize_fill (const T* src, T *dest, const T& rfv) const
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
751 { do_resize_fill (src, dest, rfv, n-1); }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
752
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
753 };
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
754
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
755 template <class T>
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
756 Array<T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
757 Array<T>::index (const idx_vector& i) const
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
758 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
759 octave_idx_type n = numel ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
760 Array<T> retval;
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
761
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
762 if (i.is_colon ())
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
763 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
764 // 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
765 retval = Array<T> (*this, dim_vector (n, 1));
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
766 }
4548
820323598f4f [project @ 2003-10-26 03:16:42 by jwe]
jwe
parents: 4545
diff changeset
767 else
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
768 {
10366
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
769 if (i.extent (n) != n)
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
770 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
771
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
772 // 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
773 dim_vector rd = i.orig_dimensions ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
774 octave_idx_type il = i.length (n);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
775
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
776 // FIXME -- this is for Matlab compatibility. Matlab 2007 given
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
777 //
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
778 // b = ones(3,1)
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
779 //
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
780 // yields the following:
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
781 //
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
782 // b(zeros(0,0)) gives []
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
783 // b(zeros(1,0)) gives zeros(0,1)
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
784 // b(zeros(0,1)) gives zeros(0,1)
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
785 // b(zeros(0,m)) gives zeros(0,m)
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
786 // b(zeros(m,0)) gives zeros(m,0)
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
787 // b(1:2) gives ones(2,1)
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
788 // b(ones(2)) gives ones(2) etc.
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
789 //
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
790 // 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
791 // 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
792
9987
bb30843c4929 fix subscripting of vectors by N-d arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9921
diff changeset
793 if (ndims () == 2 && n != 1 && rd.is_vector ())
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
794 {
9987
bb30843c4929 fix subscripting of vectors by N-d arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9921
diff changeset
795 if (columns () == 1)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
796 rd = dim_vector (il, 1);
9987
bb30843c4929 fix subscripting of vectors by N-d arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9921
diff changeset
797 else if (rows () == 1)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
798 rd = dim_vector (1, il);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
799 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
800
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
801 octave_idx_type l, u;
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
802 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
803 // If suitable, produce a shallow slice.
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
804 retval = Array<T> (*this, rd, l, u);
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
805 else
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
806 {
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
807 // 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
808 // types.
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
809 retval = Array<T> (rd);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
810
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
811 if (il != 0)
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
812 i.index (data (), n, retval.fortran_vec ());
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
813 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
814 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
815
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
816 return retval;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
817 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
818
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
819 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
820 Array<T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
821 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
822 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
823 // Get dimensions, allowing Fortran indexing in the 2nd dim.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
824 dim_vector dv = dimensions.redim (2);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
825 octave_idx_type r = dv(0), c = dv(1);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
826 Array<T> retval;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
827
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
828 if (i.is_colon () && j.is_colon ())
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
829 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
830 // A(:,:) produces a shallow copy.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
831 retval = Array<T> (*this, dv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
832 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
833 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
834 {
10366
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
835 if (i.extent (r) != r)
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
836 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
837 if (j.extent (c) != c)
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
838 gripe_index_out_of_range (2, 2, i.extent (c), c); // throws
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
839
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
840 octave_idx_type n = numel (), il = i.length (r), jl = j.length (c);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
841
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
842 idx_vector ii (i);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
843
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
844 if (ii.maybe_reduce (r, j, c))
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
845 {
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
846 octave_idx_type l, u;
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
847 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
848 // If suitable, produce a shallow slice.
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
849 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
850 else
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
851 {
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
852 // Don't use resize here to avoid useless initialization for POD types.
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
853 retval = Array<T> (dim_vector (il, jl));
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
854
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
855 ii.index (data (), n, retval.fortran_vec ());
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
856 }
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
857 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
858 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
859 {
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
860 // Don't use resize here to avoid useless initialization for POD types.
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
861 retval = Array<T> (dim_vector (il, jl));
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
862
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
863 const T* src = data ();
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
864 T *dest = retval.fortran_vec ();
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
865
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
866 for (octave_idx_type k = 0; k < jl; k++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
867 dest += i.index (src + r * j.xelem (k), r, dest);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
868 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
869 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
870
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
871 return retval;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
872 }
4747
3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe]
jwe
parents: 4746
diff changeset
873
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
874 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
875 Array<T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
876 Array<T>::index (const Array<idx_vector>& ia) const
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
877 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
878 int ial = ia.length ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
879 Array<T> retval;
4587
7b957b442818 [project @ 2003-11-10 15:50:39 by jwe]
jwe
parents: 4586
diff changeset
880
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
881 // FIXME: is this dispatching necessary?
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
882 if (ial == 1)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
883 retval = index (ia(0));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
884 else if (ial == 2)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
885 retval = index (ia(0), ia(1));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
886 else if (ial > 0)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
887 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
888 // Get dimensions, allowing Fortran indexing in the last dim.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
889 dim_vector dv = dimensions.redim (ial);
4747
3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe]
jwe
parents: 4746
diff changeset
890
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
891 // Check for out of bounds conditions.
10366
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
892 bool all_colons = true;
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
893 for (int i = 0; i < ial; i++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
894 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
895 if (ia(i).extent (dv(i)) != dv(i))
10366
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
896 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
897
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
898 all_colons = all_colons && ia(i).is_colon ();
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
4870
2cbc6f37b0c2 [project @ 2004-04-21 17:30:51 by jwe]
jwe
parents: 4834
diff changeset
901
10366
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
902 if (all_colons)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
903 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
904 // A(:,:,...,:) produces a shallow copy.
10095
eb8ac0eed9f1 always chop dimension vector when constructing Arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 10075
diff changeset
905 dv.chop_trailing_singletons ();
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
906 retval = Array<T> (*this, dv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
907 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
908 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
909 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
910 // Form result dimensions.
9507
b096d11237be dim_vector improvements
Jaroslav Hajek <highegg@gmail.com>
parents: 9341
diff changeset
911 dim_vector rdv = dim_vector::alloc (ial);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
912 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
913 rdv.chop_trailing_singletons ();
4870
2cbc6f37b0c2 [project @ 2004-04-21 17:30:51 by jwe]
jwe
parents: 4834
diff changeset
914
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
915 // Prepare for recursive indexing
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
916 rec_index_helper rh (dv, ia);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
917
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
918 octave_idx_type l, u;
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
919 if (rh.is_cont_range (l, u))
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
920 // If suitable, produce a shallow slice.
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
921 retval = Array<T> (*this, rdv, l, u);
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
922 else
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
923 {
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
924 // Don't use resize here to avoid useless initialization for POD types.
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
925 retval = Array<T> (rdv);
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
926
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
927 // Do it.
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
928 rh.index (data (), retval.fortran_vec ());
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
929 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
930 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
931 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
932
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
933 return retval;
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
934 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
935
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
936 // FIXME -- the following is a common error message to resize,
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
937 // regardless of whether it's called from assign or elsewhere. It
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
938 // seems OK to me, but eventually the gripe can be specialized.
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
939 // Anyway, propagating various error messages into procedure is, IMHO,
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
940 // a nonsense. If anything, we should change error handling here (and
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
941 // throughout liboctave) to allow custom handling of errors
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
942 static void gripe_invalid_resize (void)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
943 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
944 (*current_liboctave_error_handler)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
945 ("resize: Invalid resizing operation or ambiguous assignment to an out-of-bounds array element.");
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
946 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
947
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
948 // 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
949
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
950 template <class T>
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
951 const T& Array<T>::resize_fill_value ()
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
952 {
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
953 static T zero = T ();
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
954 return zero;
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
955 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
956
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
957 // Yes, we could do resize using index & assign. However, that would
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
958 // 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
959
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
960 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
961 void
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
962 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
963 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
964 if (n >= 0 && ndims () == 2)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
965 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
966 dim_vector dv;
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
967 // 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
968 // on some out-of-bounds assignments. Specifically, Matlab
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
969 // 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
970 // 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
971 // last one, search me why). Giving a column vector would make
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
972 // much more sense (given the way trailing singleton dims are
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
973 // treated).
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
974 bool invalid = false;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
975 if (rows () == 0 || rows () == 1)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
976 dv = dim_vector (1, n);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
977 else if (columns () == 1)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
978 dv = dim_vector (n, 1);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
979 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
980 invalid = true;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
981
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
982 if (invalid)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
983 gripe_invalid_resize ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
984 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
985 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
986 octave_idx_type nx = numel ();
9100
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
987 if (n == nx - 1 && n > 0)
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
988 {
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
989 // Stack "pop" operation.
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
990 if (rep->count == 1)
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
991 slice_data[slice_len-1] = T ();
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
992 slice_len--;
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
993 dimensions = dv;
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
994 }
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
995 else if (n == nx + 1 && nx > 0)
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
996 {
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
997 // Stack "push" operation.
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
998 if (rep->count == 1 && slice_data + slice_len < rep->data + rep->len)
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
999 {
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1000 slice_data[slice_len++] = rfv;
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1001 dimensions = dv;
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1002 }
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1003 else
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1004 {
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1005 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
1006 octave_idx_type nn = n + std::min (nx, max_stack_chunk);
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
1007 Array<T> tmp (Array<T> (nn, 1), dv, 0, n);
9100
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1008 T *dest = tmp.fortran_vec ();
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1009
9780
6dafc60dde31 rename oct-mem functions
Jaroslav Hajek <highegg@gmail.com>
parents: 9773
diff changeset
1010 copy_or_memcpy (nx, data (), dest);
9100
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1011 dest[nx] = rfv;
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1012
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1013 *this = tmp;
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1014 }
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1015 }
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1016 else if (n != nx)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1017 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1018 Array<T> tmp = Array<T> (dv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1019 T *dest = tmp.fortran_vec ();
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1020
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1021 octave_idx_type n0 = std::min (n, nx), n1 = n - n0;
9780
6dafc60dde31 rename oct-mem functions
Jaroslav Hajek <highegg@gmail.com>
parents: 9773
diff changeset
1022 copy_or_memcpy (n0, data (), dest);
6dafc60dde31 rename oct-mem functions
Jaroslav Hajek <highegg@gmail.com>
parents: 9773
diff changeset
1023 fill_or_memset (n1, rfv, dest + n0);
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1024
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1025 *this = tmp;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1026 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1027 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1028 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1029 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1030 gripe_invalid_resize ();
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1031 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1032
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1033 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1034 void
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
1035 Array<T>::resize (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
1036 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1037 if (r >= 0 && c >= 0 && ndims () == 2)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1038 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1039 octave_idx_type rx = rows (), cx = columns ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1040 if (r != rx || c != cx)
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 = Array<T> (dim_vector (r, c));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1043 T *dest = tmp.fortran_vec ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1044
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1045 octave_idx_type r0 = std::min (r, rx), r1 = r - r0;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1046 octave_idx_type c0 = std::min (c, cx), c1 = c - c0;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1047 const T *src = data ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1048 if (r == rx)
9773
01f897d8a130 optimize memory manipulation by arrays & indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 9732
diff changeset
1049 {
9780
6dafc60dde31 rename oct-mem functions
Jaroslav Hajek <highegg@gmail.com>
parents: 9773
diff changeset
1050 copy_or_memcpy (r * c0, src, dest);
9773
01f897d8a130 optimize memory manipulation by arrays & indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 9732
diff changeset
1051 dest += r * c0;
01f897d8a130 optimize memory manipulation by arrays & indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 9732
diff changeset
1052 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1053 else
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 for (octave_idx_type k = 0; k < c0; k++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1056 {
9780
6dafc60dde31 rename oct-mem functions
Jaroslav Hajek <highegg@gmail.com>
parents: 9773
diff changeset
1057 copy_or_memcpy (r0, src, dest);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1058 src += rx;
9773
01f897d8a130 optimize memory manipulation by arrays & indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 9732
diff changeset
1059 dest += r0;
9780
6dafc60dde31 rename oct-mem functions
Jaroslav Hajek <highegg@gmail.com>
parents: 9773
diff changeset
1060 fill_or_memset (r1, rfv, dest);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1061 dest += r1;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1062 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1063 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1064
9780
6dafc60dde31 rename oct-mem functions
Jaroslav Hajek <highegg@gmail.com>
parents: 9773
diff changeset
1065 fill_or_memset (r * c1, rfv, dest);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1066
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1067 *this = tmp;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1068 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1069 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1070 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1071 gripe_invalid_resize ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1072
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1073 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1074
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1075 template<class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1076 void
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
1077 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
1078 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1079 int dvl = dv.length ();
8784
374cb30311a8 remove dead branch in Array.cc
Jaroslav Hajek <highegg@gmail.com>
parents: 8760
diff changeset
1080 if (dvl == 2)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1081 resize (dv(0), dv(1), rfv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1082 else if (dimensions != dv)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1083 {
8799
f6dc6eb57045 improve resize & resize on assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 8784
diff changeset
1084 if (dimensions.length () <= dvl && ! dv.any_neg ())
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1085 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1086 Array<T> tmp (dv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1087 // Prepare for recursive resizing.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1088 rec_resize_helper rh (dv, dimensions.redim (dvl));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1089
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1090 // Do it.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1091 rh.resize_fill (data (), tmp.fortran_vec (), rfv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1092 *this = tmp;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1093 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1094 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1095 gripe_invalid_resize ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1096 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1097 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1098
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1099 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1100 Array<T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1101 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
1102 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1103 Array<T> tmp = *this;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1104 if (resize_ok)
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 octave_idx_type n = numel (), nx = i.extent (n);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1107 if (n != nx)
8563
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1108 {
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1109 if (i.is_scalar ())
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
1110 return Array<T> (1, 1, rfv);
8563
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1111 else
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
1112 tmp.resize1 (nx, rfv);
8563
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1113 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1114
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1115 if (tmp.numel () != nx)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1116 return Array<T> ();
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1117 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1118
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1119 return tmp.index (i);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1120 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1121
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1122 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1123 Array<T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1124 Array<T>::index (const idx_vector& i, const idx_vector& j,
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1125 bool resize_ok, const T& rfv) const
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1126 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1127 Array<T> tmp = *this;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1128 if (resize_ok)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1129 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1130 dim_vector dv = dimensions.redim (2);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1131 octave_idx_type r = dv(0), c = dv(1);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1132 octave_idx_type rx = i.extent (r), cx = j.extent (c);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1133 if (r != rx || c != cx)
8563
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1134 {
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1135 if (i.is_scalar () && j.is_scalar ())
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
1136 return Array<T> (1, 1, rfv);
8563
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1137 else
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
1138 tmp.resize (rx, cx, rfv);
8563
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1139 }
4747
3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe]
jwe
parents: 4746
diff changeset
1140
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1141 if (tmp.rows () != rx || tmp.columns () != cx)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1142 return Array<T> ();
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1143 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1144
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1145 return tmp.index (i, j);
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
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1148 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1149 Array<T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1150 Array<T>::index (const Array<idx_vector>& ia,
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1151 bool resize_ok, const T& rfv) const
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1152 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1153 Array<T> tmp = *this;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1154 if (resize_ok)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1155 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1156 int ial = ia.length ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1157 dim_vector dv = dimensions.redim (ial);
9507
b096d11237be dim_vector improvements
Jaroslav Hajek <highegg@gmail.com>
parents: 9341
diff changeset
1158 dim_vector dvx = dim_vector::alloc (ial);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1159 for (int i = 0; i < ial; i++) dvx(i) = ia(i).extent (dv (i));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1160 if (! (dvx == dv))
8563
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1161 {
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1162 bool all_scalars = true;
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1163 for (int i = 0; i < ial; i++)
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1164 all_scalars = all_scalars && ia(i).is_scalar ();
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1165 if (all_scalars)
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
1166 return Array<T> (1, 1, rfv);
8563
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1167 else
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
1168 tmp.resize (dvx, rfv);
8563
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1169 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1170
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1171 if (tmp.dimensions != dvx)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1172 return Array<T> ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1173 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1174
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1175 return tmp.index (ia);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1176 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1177
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1178
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1179 static void
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1180 gripe_invalid_assignment_size (void)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1181 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1182 (*current_liboctave_error_handler)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1183 ("A(I) = X: X must have the same size as I");
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1184 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1185
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1186 static void
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1187 gripe_assignment_dimension_mismatch (void)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1188 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1189 (*current_liboctave_error_handler)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1190 ("A(I,J,...) = X: dimensions mismatch");
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1191 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1192
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1193 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1194 void
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1195 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
1196 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1197 octave_idx_type n = numel (), rhl = rhs.numel ();
4548
820323598f4f [project @ 2003-10-26 03:16:42 by jwe]
jwe
parents: 4545
diff changeset
1198
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1199 if (rhl == 1 || i.length (n) == rhl)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1200 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1201 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
1202 bool colon = i.is_colon_equiv (nx);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1203 // Try to resize first if necessary.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1204 if (nx != n)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1205 {
8580
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1206 // 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
1207 if (dimensions.zero_by_zero () && colon)
8580
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1208 {
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1209 if (rhl == 1)
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1210 *this = Array<T> (dim_vector (1, nx), rhs(0));
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1211 else
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1212 *this = Array<T> (rhs, dim_vector (1, nx));
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1213 return;
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1214 }
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1215
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
1216 resize1 (nx, rfv);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1217 n = numel ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1218 }
4747
3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe]
jwe
parents: 4746
diff changeset
1219
9886
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1220 if (colon)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1221 {
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1222 // 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
1223 if (rhl == 1)
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1224 fill (rhs(0));
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1225 else
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1226 *this = rhs.reshape (dimensions);
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1227 }
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1228 else
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1229 {
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1230 if (rhl == 1)
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1231 i.fill (rhs(0), n, fortran_vec ());
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1232 else
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1233 i.assign (rhs.data (), n, fortran_vec ());
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1234 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1235 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1236 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1237 gripe_invalid_assignment_size ();
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1238 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1239
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1240 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1241 void
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1242 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
1243 const Array<T>& rhs, const T& rfv)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1244 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1245 // Get RHS extents, discarding singletons.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1246 dim_vector rhdv = rhs.dims ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1247 // Get LHS extents, allowing Fortran indexing in the second dim.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1248 dim_vector dv = dimensions.redim (2);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1249 // Check for out-of-bounds and form resizing dimensions.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1250 dim_vector rdv;
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1251 // In the special when all dimensions are zero, colons are allowed
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1252 // 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
1253 // solve that elsewhere.
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1254 if (dv.all_zero ())
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1255 rdv = zero_dims_inquire (i, j, rhdv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1256 else
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1257 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1258 rdv(0) = i.extent (dv(0));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1259 rdv(1) = j.extent (dv(1));
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1260 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1261
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1262 bool isfill = rhs.numel () == 1;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1263 octave_idx_type il = i.length (rdv(0)), jl = j.length (rdv(1));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1264 rhdv.chop_all_singletons ();
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1265 bool match = (isfill
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1266 || (rhdv.length () == 2 && il == rhdv(0) && jl == rhdv(1)));
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1267 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
1268
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1269 if (match)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1270 {
9886
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1271 bool all_colons = (i.is_colon_equiv (rdv(0))
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1272 && j.is_colon_equiv (rdv(1)));
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1273 // Resize if requested.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1274 if (rdv != dv)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1275 {
8580
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1276 // 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
1277 if (dv.zero_by_zero () && all_colons)
8580
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1278 {
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1279 if (isfill)
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1280 *this = Array<T> (rdv, rhs(0));
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1281 else
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1282 *this = Array<T> (rhs, rdv);
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1283 return;
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1284 }
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1285
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1286 resize (rdv, rfv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1287 dv = dimensions;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1288 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1289
9886
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1290 if (all_colons)
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1291 {
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1292 // 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
1293 if (isfill)
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1294 fill (rhs(0));
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1295 else
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1296 *this = rhs.reshape (dimensions);
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1297 }
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1298 else
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1299 {
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1300 // The actual work.
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1301 octave_idx_type n = numel (), r = dv (0), c = dv (1);
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1302 idx_vector ii (i);
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1303
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1304 const T* src = rhs.data ();
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1305 T *dest = fortran_vec ();
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1306
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1307 // Try reduction first.
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1308 if (ii.maybe_reduce (r, j, c))
8290
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 if (isfill)
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1311 ii.fill (*src, n, dest);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1312 else
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1313 ii.assign (src, n, dest);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1314 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1315 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1316 {
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1317 if (isfill)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1318 {
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1319 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
1320 i.fill (*src, r, dest + r * j.xelem (k));
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1321 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1322 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1323 {
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1324 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
1325 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
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 }
4747
3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe]
jwe
parents: 4746
diff changeset
1329 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1330 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1331 gripe_assignment_dimension_mismatch ();
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1332 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1333
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1334 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1335 void
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1336 Array<T>::assign (const Array<idx_vector>& ia,
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1337 const Array<T>& rhs, const T& rfv)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1338 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1339 int ial = ia.length ();
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1340
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1341 // FIXME: is this dispatching necessary / desirable?
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1342 if (ial == 1)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1343 assign (ia(0), rhs, rfv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1344 else if (ial == 2)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1345 assign (ia(0), ia(1), rhs, rfv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1346 else if (ial > 0)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1347 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1348 // Get RHS extents, discarding singletons.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1349 dim_vector rhdv = rhs.dims ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1350
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1351 // Get LHS extents, allowing Fortran indexing in the second dim.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1352 dim_vector dv = dimensions.redim (ial);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1353
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1354 // Get the extents forced by indexing.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1355 dim_vector rdv;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1356
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1357 // In the special when all dimensions are zero, colons are
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1358 // allowed to inquire the shape of RHS. The rules are more
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1359 // obscure, so we solve that elsewhere.
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1360 if (dv.all_zero ())
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1361 rdv = zero_dims_inquire (ia, rhdv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1362 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1363 {
9507
b096d11237be dim_vector improvements
Jaroslav Hajek <highegg@gmail.com>
parents: 9341
diff changeset
1364 rdv = dim_vector::alloc (ial);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1365 for (int i = 0; i < ial; i++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1366 rdv(i) = ia(i).extent (dv(i));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1367 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1368
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1369 // Check whether LHS and RHS match, up to singleton dims.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1370 bool match = true, all_colons = true, isfill = rhs.numel () == 1;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1371
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1372 rhdv.chop_all_singletons ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1373 int j = 0, rhdvl = rhdv.length ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1374 for (int i = 0; i < ial; i++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1375 {
9886
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1376 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
1377 octave_idx_type l = ia(i).length (rdv(i));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1378 if (l == 1) continue;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1379 match = match && j < rhdvl && l == rhdv(j++);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1380 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1381
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1382 match = match && (j == rhdvl || rhdv(j) == 1);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1383 match = match || isfill;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1384
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1385 if (match)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1386 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1387 // Resize first if necessary.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1388 if (rdv != dv)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1389 {
9886
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1390 // 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
1391 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
1392 {
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1393 rdv.chop_trailing_singletons ();
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1394 if (isfill)
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1395 *this = Array<T> (rdv, rhs(0));
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1396 else
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1397 *this = Array<T> (rhs, rdv);
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1398 return;
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1399 }
cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 9878
diff changeset
1400
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
1401 resize (rdv, rfv);
10095
eb8ac0eed9f1 always chop dimension vector when constructing Arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 10075
diff changeset
1402 dv = rdv;
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1403 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1404
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1405 if (all_colons)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1406 {
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1407 // 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
1408 if (isfill)
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1409 fill (rhs(0));
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1410 else
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1411 *this = rhs.reshape (dimensions);
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1412 }
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1413 else
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1414 {
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1415 // Do the actual work.
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1416
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1417 // Prepare for recursive indexing
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1418 rec_index_helper rh (dv, ia);
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1419
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1420 // Do it.
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1421 if (isfill)
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1422 rh.fill (rhs(0), fortran_vec ());
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1423 else
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1424 rh.assign (rhs.data (), fortran_vec ());
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1425 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1426 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1427 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1428 gripe_assignment_dimension_mismatch ();
4553
c7eb767505e9 [project @ 2003-10-27 21:39:55 by jwe]
jwe
parents: 4548
diff changeset
1429 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1430 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1431
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1432 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1433 void
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1434 Array<T>::delete_elements (const idx_vector& i)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1435 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1436 octave_idx_type n = numel ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1437 if (i.is_colon ())
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1438 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1439 *this = Array<T> ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1440 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1441 else if (i.length (n) != 0)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1442 {
10366
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
1443 if (i.extent (n) != n)
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
1444 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
1445
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1446 octave_idx_type l, u;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1447 bool col_vec = ndims () == 2 && columns () == 1 && rows () != 1;
9100
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1448 if (i.is_scalar () && i(0) == n-1)
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1449 {
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1450 // Stack "pop" operation.
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
1451 resize1 (n-1);
9100
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1452 }
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1453 else if (i.is_cont_range (n, l, u))
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1454 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1455 // Special case deleting a contiguous range.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1456 octave_idx_type m = n + l - u;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1457 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
1458 const T *src = data ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1459 T *dest = tmp.fortran_vec ();
9780
6dafc60dde31 rename oct-mem functions
Jaroslav Hajek <highegg@gmail.com>
parents: 9773
diff changeset
1460 copy_or_memcpy (l, src, dest);
6dafc60dde31 rename oct-mem functions
Jaroslav Hajek <highegg@gmail.com>
parents: 9773
diff changeset
1461 copy_or_memcpy (n - u, src + u, dest + l);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1462 *this = tmp;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1463 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1464 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1465 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1466 // Use index.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1467 *this = index (i.complement (n));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1468 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1469 }
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
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1472 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1473 void
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1474 Array<T>::delete_elements (int dim, const idx_vector& i)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1475 {
8302
f2e050b62199 fix dim check in Array<T>::delete_elements
Jaroslav Hajek <highegg@gmail.com>
parents: 8290
diff changeset
1476 if (dim < 0 || dim >= ndims ())
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1477 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1478 (*current_liboctave_error_handler)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1479 ("invalid dimension in delete_elements");
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1480 return;
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1481 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1482
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1483 octave_idx_type n = dimensions (dim);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1484 if (i.is_colon ())
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1485 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1486 *this = Array<T> ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1487 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1488 else if (i.length (n) != 0)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1489 {
10366
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
1490 if (i.extent (n) != n)
e5ae13b8b2c2 improve Array indexing error messages
Jaroslav Hajek <highegg@gmail.com>
parents: 10352
diff changeset
1491 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
1492
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1493 octave_idx_type l, u;
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1494
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1495 if (i.is_cont_range (n, l, u))
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1496 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1497 // Special case deleting a contiguous range.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1498 octave_idx_type nd = n + l - u, dl = 1, du = 1;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1499 dim_vector rdv = dimensions;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1500 rdv(dim) = nd;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1501 for (int k = 0; k < dim; k++) dl *= dimensions(k);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1502 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
1503
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1504 // Special case deleting a contiguous range.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1505 Array<T> tmp = Array<T> (rdv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1506 const T *src = data ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1507 T *dest = tmp.fortran_vec ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1508 l *= dl; u *= dl; n *= dl;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1509 for (octave_idx_type k = 0; k < du; k++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1510 {
9780
6dafc60dde31 rename oct-mem functions
Jaroslav Hajek <highegg@gmail.com>
parents: 9773
diff changeset
1511 copy_or_memcpy (l, src, dest);
9773
01f897d8a130 optimize memory manipulation by arrays & indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 9732
diff changeset
1512 dest += l;
9780
6dafc60dde31 rename oct-mem functions
Jaroslav Hajek <highegg@gmail.com>
parents: 9773
diff changeset
1513 copy_or_memcpy (n - u, src + u, dest);
9773
01f897d8a130 optimize memory manipulation by arrays & indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 9732
diff changeset
1514 dest += n - u;
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1515 src += n;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1516 }
4870
2cbc6f37b0c2 [project @ 2004-04-21 17:30:51 by jwe]
jwe
parents: 4834
diff changeset
1517
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1518 *this = tmp;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1519 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1520 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1521 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1522 // Use index.
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
1523 Array<idx_vector> ia (ndims (), 1, idx_vector::colon);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1524 ia (dim) = i.complement (n);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1525 *this = index (ia);
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 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1528 }
4747
3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe]
jwe
parents: 4746
diff changeset
1529
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1530 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1531 void
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1532 Array<T>::delete_elements (const Array<idx_vector>& ia)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1533 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1534 if (ia.length () == 1)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1535 delete_elements (ia(0));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1536 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1537 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1538 int len = ia.length (), k, dim = -1;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1539 for (k = 0; k < len; k++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1540 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1541 if (! ia(k).is_colon ())
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1542 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1543 if (dim < 0)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1544 dim = k;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1545 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1546 break;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1547 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1548 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1549 if (dim < 0)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1550 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1551 dim_vector dv = dimensions;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1552 dv(0) = 0;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1553 *this = Array<T> (dv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1554 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1555 else if (k == len)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1556 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1557 delete_elements (dim, ia(dim));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1558 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1559 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1560 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1561 (*current_liboctave_error_handler)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1562 ("A null assignment can only have one non-colon index.");
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1563 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1564 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1565
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1566 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1567
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1568 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1569 Array<T>&
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1570 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
1571 {
10115
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1572 idx_vector i (r, r + a.rows ());
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1573 idx_vector j (c, c + a.columns ());
4786
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1574 if (ndims () == 2 && a.ndims () == 2)
10115
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1575 assign (i, j, a);
4786
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1576 else
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1577 {
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
1578 Array<idx_vector> idx (a.ndims (), 1);
10115
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1579 idx(0) = i;
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1580 idx(1) = j;
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1581 for (int k = 0; k < a.ndims (); k++)
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1582 idx(k) = idx_vector (0, a.dimensions(k));
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1583 assign (idx, a);
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1584 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1585
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1586 return *this;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1587 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1588
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1589 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1590 Array<T>&
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1591 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
1592 {
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1593 octave_idx_type n = ra_idx.length ();
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
1594 Array<idx_vector> idx (n, 1);
10115
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1595 const dim_vector dva = a.dims ().redim (n);
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1596 for (octave_idx_type k = 0; k < n; k++)
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1597 idx(k) = idx_vector (ra_idx (k), ra_idx (k) + dva(k));
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1598
ed49cef7e005 simplify Array::insert methods
Jaroslav Hajek <highegg@gmail.com>
parents: 10113
diff changeset
1599 assign (idx, a);
4513
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
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1604
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1605 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1606 Array<T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1607 Array<T>::transpose (void) const
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1608 {
4548
820323598f4f [project @ 2003-10-26 03:16:42 by jwe]
jwe
parents: 4545
diff changeset
1609 assert (ndims () == 2);
820323598f4f [project @ 2003-10-26 03:16:42 by jwe]
jwe
parents: 4545
diff changeset
1610
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1611 octave_idx_type nr = dim1 ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1612 octave_idx_type nc = dim2 ();
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1613
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1614 if (nr >= 8 && nc >= 8)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1615 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1616 Array<T> result (dim_vector (nc, nr));
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1617
9121
bb62bc406ea7 reuse fast blocked transpose implementation from rec_permute_helper in Array<T>::transpose
Jaroslav Hajek <highegg@gmail.com>
parents: 9100
diff changeset
1618 // 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
1619
bb62bc406ea7 reuse fast blocked transpose implementation from rec_permute_helper in Array<T>::transpose
Jaroslav Hajek <highegg@gmail.com>
parents: 9100
diff changeset
1620 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
1621
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1622 return result;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1623 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1624 else if (nr > 1 && nc > 1)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1625 {
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1626 Array<T> result (dim_vector (nc, nr));
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1627
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1628 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
1629 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1630 result.xelem (j, i) = xelem (i, j);
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1631
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1632 return result;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1633 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1634 else
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1635 {
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1636 // Fast transpose for vectors and empty matrices.
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1637 return Array<T> (*this, dim_vector (nc, nr));
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1638 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1639 }
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 template <class T>
8028
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1642 static T
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1643 no_op_fcn (const T& x)
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1644 {
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1645 return x;
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1646 }
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1647
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1648 template <class T>
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1649 Array<T>
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1650 Array<T>::hermitian (T (*fcn) (const T&)) const
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1651 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1652 assert (ndims () == 2);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1653
8028
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1654 if (! fcn)
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1655 fcn = no_op_fcn<T>;
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1656
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1657 octave_idx_type nr = dim1 ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1658 octave_idx_type nc = dim2 ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1659
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1660 if (nr >= 8 && nc >= 8)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1661 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1662 Array<T> result (dim_vector (nc, nr));
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1663
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1664 // Blocked transpose to attempt to avoid cache misses.
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1665
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1666 // 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
1667 // on some compilers.
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1668 T buf[64];
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1669
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1670 octave_idx_type ii = 0, jj;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1671 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
1672 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1673 for (ii = 0; ii < (nr - 8 + 1); ii += 8)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1674 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1675 // Copy to buffer
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1676 for (octave_idx_type j = jj, k = 0, idxj = jj * nr;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1677 j < jj + 8; j++, idxj += nr)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1678 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
1679 buf[k++] = xelem (i + idxj);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1680
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1681 // Copy from buffer
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1682 for (octave_idx_type i = ii, idxi = ii * nc; i < ii + 8;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1683 i++, idxi += nc)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1684 for (octave_idx_type j = jj, k = i - ii; j < jj + 8;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1685 j++, k+=8)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1686 result.xelem (j + idxi) = fcn (buf[k]);
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
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1689 if (ii < nr)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1690 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
1691 for (octave_idx_type i = ii; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1692 result.xelem (j, i) = fcn (xelem (i, j));
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1693 }
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1694
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1695 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
1696 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1697 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
1698
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1699 return result;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1700 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1701 else
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1702 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1703 Array<T> result (dim_vector (nc, nr));
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1704
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1705 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
1706 for (octave_idx_type i = 0; 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));
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1708
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1709 return result;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1710 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1711 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1712
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
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1715 %% 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
1716 %% and with four tiles.
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 %!shared m7, mt7, m8, mt8, m9, mt9
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1719 %! 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
1720 %! 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
1721 %! 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
1722 %! mt8 = mt8 = [mt7; 57:64];
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1723 %! 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
1724 %! mt9 = [mt8; 65:72];
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1725
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1726 %!assert(m7', mt7)
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1727 %!assert((1i*m7).', 1i * mt7)
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1728 %!assert((1i*m7)', conj (1i * mt7))
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1729 %!assert(m8', mt8)
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1730 %!assert((1i*m8).', 1i * mt8)
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1731 %!assert((1i*m8)', conj (1i * mt8))
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1732 %!assert(m9', mt9)
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1733 %!assert((1i*m9).', 1i * mt9)
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1734 %!assert((1i*m9)', conj (1i * mt9))
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1735 %!assert([m7, m8; m7, m8]', [mt7, mt7; mt8, mt8])
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1736 %!assert((1i*[m7, m8; m7, m8]).', 1i * [mt7, mt7; mt8, mt8])
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1737 %!assert((1i*[m7, m8; m7, m8])', conj (1i * [mt7, mt7; mt8, mt8]))
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1738 %!assert([m8, m8; m8, m8]', [mt8, mt8; mt8, mt8])
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1739 %!assert((1i*[m8, m8; m8, m8]).', 1i * [mt8, mt8; mt8, mt8])
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1740 %!assert((1i*[m8, m8; m8, m8])', conj (1i * [mt8, mt8; mt8, mt8]))
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1741 %!assert([m9, m8; m9, m8]', [mt9, mt9; mt8, mt8])
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1742 %!assert((1i*[m9, m8; m9, m8]).', 1i * [mt9, mt9; mt8, mt8])
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1743 %!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
1744
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1745 */
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1746
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1747 template <class T>
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1748 T *
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1749 Array<T>::fortran_vec (void)
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1750 {
6881
cd2c6a69a70d [project @ 2007-09-07 21:48:09 by jwe]
jwe
parents: 6867
diff changeset
1751 make_unique ();
cd2c6a69a70d [project @ 2007-09-07 21:48:09 by jwe]
jwe
parents: 6867
diff changeset
1752
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
1753 return slice_data;
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1754 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1755
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1756 template <class T>
3933
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3657
diff changeset
1757 void
4517
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
1758 Array<T>::maybe_delete_dims (void)
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
1759 {
4587
7b957b442818 [project @ 2003-11-10 15:50:39 by jwe]
jwe
parents: 4586
diff changeset
1760 int nd = dimensions.length ();
4517
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
1761
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
1762 dim_vector new_dims (1, 1);
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
1763
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
1764 bool delete_dims = true;
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
1765
4587
7b957b442818 [project @ 2003-11-10 15:50:39 by jwe]
jwe
parents: 4586
diff changeset
1766 for (int i = nd - 1; i >= 0; i--)
4517
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
1767 {
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
1768 if (delete_dims)
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
1769 {
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
1770 if (dimensions(i) != 1)
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1771 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1772 delete_dims = false;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1773
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1774 new_dims = dim_vector (i + 1, dimensions(i));
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1775 }
4517
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
1776 }
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
1777 else
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1778 new_dims(i) = dimensions(i);
4517
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
1779 }
4530
e8d87fefd144 [project @ 2003-10-07 04:02:04 by jwe]
jwe
parents: 4518
diff changeset
1780
4587
7b957b442818 [project @ 2003-11-10 15:50:39 by jwe]
jwe
parents: 4586
diff changeset
1781 if (nd != new_dims.length ())
4517
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
1782 dimensions = new_dims;
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
1783 }
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
1784
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1785 // Non-real types don't have NaNs.
4517
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
1786 template <class T>
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
1787 inline bool
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
1788 sort_isnan (typename ref_param<T>::type)
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1789 {
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1790 return false;
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
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1793 template <class T>
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1794 Array<T>
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
1795 Array<T>::sort (int dim, sortmode mode) const
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1796 {
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1797 if (dim < 0 || dim >= ndims ())
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1798 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1799 (*current_liboctave_error_handler)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1800 ("sort: invalid dimension");
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1801 return Array<T> ();
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1802 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1803
8651
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
1804 Array<T> m (dims ());
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1805
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1806 dim_vector dv = m.dims ();
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1807
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1808 if (m.length () < 1)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1809 return m;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1810
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1811 octave_idx_type ns = dv(dim);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1812 octave_idx_type iter = dv.numel () / ns;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1813 octave_idx_type stride = 1;
8505
124dd27bedae Array.cc: style fixes
John W. Eaton <jwe@octave.org>
parents: 8410
diff changeset
1814
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1815 for (int i = 0; i < dim; i++)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1816 stride *= dv(i);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1817
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1818 T *v = m.fortran_vec ();
8651
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
1819 const T *ov = data ();
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
1820
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1821 octave_sort<T> lsort;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1822
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1823 if (mode)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1824 lsort.set_compare (mode);
7463
2467639bd8c0 eliminate UNDEFINED sort mode
John W. Eaton <jwe@octave.org>
parents: 7443
diff changeset
1825 else
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1826 return m;
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1827
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1828 if (stride == 1)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1829 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1830 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
1831 {
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1832 // copy and partition out NaNs.
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1833 // FIXME: impact on integer types noticeable?
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1834 octave_idx_type kl = 0, ku = ns;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1835 for (octave_idx_type i = 0; i < ns; i++)
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 T tmp = ov[i];
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
1838 if (sort_isnan<T> (tmp))
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1839 v[--ku] = tmp;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1840 else
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1841 v[kl++] = tmp;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1842 }
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 // sort.
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1845 lsort.sort (v, kl);
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1846
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1847 if (ku < ns)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1848 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1849 // NaNs are in reverse order
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1850 std::reverse (v + ku, v + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1851 if (mode == DESCENDING)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1852 std::rotate (v, v + ku, v + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1853 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1854
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1855 v += ns;
8651
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
1856 ov += ns;
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1857 }
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1858 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1859 else
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1860 {
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1861 OCTAVE_LOCAL_BUFFER (T, buf, ns);
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1862
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1863 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
1864 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1865 octave_idx_type offset = j;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1866 octave_idx_type offset2 = 0;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1867
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1868 while (offset >= stride)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1869 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1870 offset -= stride;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1871 offset2++;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1872 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1873
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1874 offset += offset2 * stride * ns;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1875
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1876 // gather and partition out NaNs.
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1877 // FIXME: impact on integer types noticeable?
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1878 octave_idx_type kl = 0, ku = ns;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1879 for (octave_idx_type i = 0; i < ns; i++)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1880 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1881 T tmp = ov[i*stride + offset];
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
1882 if (sort_isnan<T> (tmp))
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1883 buf[--ku] = tmp;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1884 else
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1885 buf[kl++] = tmp;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1886 }
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1887
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1888 // sort.
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1889 lsort.sort (buf, kl);
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1890
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1891 if (ku < ns)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1892 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1893 // NaNs are in reverse order
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1894 std::reverse (buf + ku, buf + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1895 if (mode == DESCENDING)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1896 std::rotate (buf, buf + ku, buf + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1897 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1898
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1899 // scatter.
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1900 for (octave_idx_type i = 0; i < ns; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1901 v[i*stride + offset] = buf[i];
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1902 }
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1903 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1904
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1905 return m;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1906 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1907
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1908 template <class T>
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1909 Array<T>
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
1910 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
1911 sortmode mode) const
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1912 {
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1913 if (dim < 0 || dim >= ndims ())
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1914 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1915 (*current_liboctave_error_handler)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1916 ("sort: invalid dimension");
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1917 return Array<T> ();
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1918 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1919
8651
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
1920 Array<T> m (dims ());
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1921
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1922 dim_vector dv = m.dims ();
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1923
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1924 if (m.length () < 1)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1925 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1926 sidx = Array<octave_idx_type> (dv);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1927 return m;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1928 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1929
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1930 octave_idx_type ns = dv(dim);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1931 octave_idx_type iter = dv.numel () / ns;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1932 octave_idx_type stride = 1;
8505
124dd27bedae Array.cc: style fixes
John W. Eaton <jwe@octave.org>
parents: 8410
diff changeset
1933
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1934 for (int i = 0; i < dim; i++)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1935 stride *= dv(i);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1936
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1937 T *v = m.fortran_vec ();
8651
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
1938 const T *ov = data ();
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
1939
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1940 octave_sort<T> lsort;
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1941
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1942 sidx = Array<octave_idx_type> (dv);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1943 octave_idx_type *vi = sidx.fortran_vec ();
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1944
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1945 if (mode)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1946 lsort.set_compare (mode);
7463
2467639bd8c0 eliminate UNDEFINED sort mode
John W. Eaton <jwe@octave.org>
parents: 7443
diff changeset
1947 else
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
1948 return m;
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1949
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1950 if (stride == 1)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1951 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1952 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
1953 {
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1954 // copy and partition out NaNs.
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1955 // FIXME: impact on integer types noticeable?
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1956 octave_idx_type kl = 0, ku = ns;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1957 for (octave_idx_type i = 0; i < ns; i++)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1958 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1959 T tmp = ov[i];
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
1960 if (sort_isnan<T> (tmp))
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1961 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1962 --ku;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1963 v[ku] = tmp;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1964 vi[ku] = i;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1965 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1966 else
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1967 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1968 v[kl] = tmp;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1969 vi[kl] = i;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1970 kl++;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1971 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1972 }
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1973
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1974 // sort.
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1975 lsort.sort (v, vi, kl);
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1976
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1977 if (ku < 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 // NaNs are in reverse order
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1980 std::reverse (v + ku, v + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1981 std::reverse (vi + ku, vi + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1982 if (mode == DESCENDING)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1983 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1984 std::rotate (v, v + ku, v + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1985 std::rotate (vi, vi + ku, vi + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1986 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1987 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1988
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1989 v += ns;
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1990 vi += ns;
8651
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
1991 ov += ns;
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
1992 }
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1993 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1994 else
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
1995 {
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1996 OCTAVE_LOCAL_BUFFER (T, buf, ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1997 OCTAVE_LOCAL_BUFFER (octave_idx_type, bufi, ns);
8651
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
1998
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
1999 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
2000 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2001 octave_idx_type offset = j;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2002 octave_idx_type offset2 = 0;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2003
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2004 while (offset >= stride)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2005 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2006 offset -= stride;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2007 offset2++;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2008 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2009
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2010 offset += offset2 * stride * ns;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2011
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2012 // gather and partition out NaNs.
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2013 // FIXME: impact on integer types noticeable?
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2014 octave_idx_type kl = 0, ku = ns;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2015 for (octave_idx_type i = 0; i < ns; 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 T tmp = ov[i*stride + offset];
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
2018 if (sort_isnan<T> (tmp))
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2019 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2020 --ku;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2021 buf[ku] = tmp;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2022 bufi[ku] = i;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2023 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2024 else
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2025 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2026 buf[kl] = tmp;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2027 bufi[kl] = i;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2028 kl++;
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 }
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2031
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2032 // sort.
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2033 lsort.sort (buf, bufi, kl);
8700
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 if (ku < ns)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2036 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2037 // NaNs are in reverse order
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2038 std::reverse (buf + ku, buf + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2039 std::reverse (bufi + ku, bufi + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2040 if (mode == DESCENDING)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2041 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2042 std::rotate (buf, buf + ku, buf + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2043 std::rotate (bufi, bufi + ku, bufi + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2044 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2045 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2046
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2047 // scatter.
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2048 for (octave_idx_type i = 0; i < ns; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2049 v[i*stride + offset] = buf[i];
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2050 for (octave_idx_type i = 0; i < ns; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2051 vi[i*stride + offset] = bufi[i];
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2052 }
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2053 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2054
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2055 return m;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2056 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2057
7620
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2058 template <class T>
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
2059 typename Array<T>::compare_fcn_type
9920
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2060 safe_comparator (sortmode mode, const Array<T>& /* a */,
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2061 bool /* allow_chk */)
8721
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 if (mode == ASCENDING)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2064 return octave_sort<T>::ascending_compare;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2065 else if (mode == DESCENDING)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2066 return octave_sort<T>::descending_compare;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2067 else
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2068 return 0;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2069 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2070
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2071 template <class T>
9920
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2072 sortmode
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2073 Array<T>::is_sorted (sortmode mode) const
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2074 {
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2075 octave_sort<T> lsort;
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 octave_idx_type n = numel ();
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2078
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2079 if (n <= 1)
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2080 return mode ? mode : ASCENDING;
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2081
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2082 if (! mode)
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2083 {
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2084 // Auto-detect mode.
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2085 compare_fcn_type compare
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2086 = safe_comparator (ASCENDING, *this, false);
9920
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2087
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2088 if (compare (elem (n-1), elem (0)))
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2089 mode = DESCENDING;
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2090 else
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2091 mode = ASCENDING;
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2092 }
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 if (mode)
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2095 {
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2096 lsort.set_compare (safe_comparator (mode, *this, false));
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 if (! lsort.is_sorted (data (), n))
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2099 mode = UNSORTED;
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2100 }
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2101
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2102 return mode;
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2103
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2104 }
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2105
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2106 template <class T>
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2107 Array<octave_idx_type>
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2108 Array<T>::sort_rows_idx (sortmode mode) const
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2109 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2110 Array<octave_idx_type> idx;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2111
9921
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2112 octave_sort<T> lsort (safe_comparator (mode, *this, true));
8721
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 octave_idx_type r = rows (), c = cols ();
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2115
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
2116 idx = Array<octave_idx_type> (r, 1);
8721
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 lsort.sort_rows (data (), idx.fortran_vec (), r, c);
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2119
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2120 return idx;
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
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2123
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2124 template <class T>
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2125 sortmode
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2126 Array<T>::is_sorted_rows (sortmode mode) const
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2127 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2128 octave_sort<T> lsort;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2129
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2130 octave_idx_type r = rows (), c = cols ();
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 if (r <= 1 || c == 0)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2133 return mode ? mode : ASCENDING;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2134
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2135 if (! mode)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2136 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2137 // Auto-detect mode.
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
2138 compare_fcn_type compare
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2139 = safe_comparator (ASCENDING, *this, false);
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2140
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2141 octave_idx_type i;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2142 for (i = 0; i < cols (); i++)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2143 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2144 T l = elem (0, i), u = elem (rows () - 1, i);
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2145 if (compare (l, u))
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2146 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2147 if (mode == DESCENDING)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2148 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2149 mode = UNSORTED;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2150 break;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2151 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2152 else
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2153 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 else if (compare (u, l))
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2156 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2157 if (mode == ASCENDING)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2158 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2159 mode = UNSORTED;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2160 break;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2161 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2162 else
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2163 mode = DESCENDING;
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 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2166 if (! mode && i == cols ())
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2167 mode = ASCENDING;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2168 }
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 (mode)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2171 {
9920
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2172 lsort.set_compare (safe_comparator (mode, *this, false));
8721
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 if (! lsort.is_sorted_rows (data (), r, c))
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2175 mode = UNSORTED;
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
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2178 return mode;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2179
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2180 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2181
8814
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2182 // Do a binary lookup in a sorted array.
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2183 template <class T>
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2184 octave_idx_type
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2185 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
2186 {
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2187 octave_idx_type n = numel ();
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2188 octave_sort<T> lsort;
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2189
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2190 if (mode == UNSORTED)
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2191 {
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2192 // auto-detect mode
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2193 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
2194 mode = DESCENDING;
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2195 else
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2196 mode = ASCENDING;
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2197 }
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 lsort.set_compare (mode);
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2200
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2201 return lsort.lookup (data (), n, value);
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2202 }
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2203
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2204 template <class T>
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2205 Array<octave_idx_type>
9921
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2206 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
2207 {
9921
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2208 octave_idx_type n = numel (), nval = values.numel ();
8814
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2209 octave_sort<T> lsort;
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2210 Array<octave_idx_type> idx (values.dims ());
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2211
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2212 if (mode == UNSORTED)
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2213 {
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2214 // auto-detect mode
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2215 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
2216 mode = DESCENDING;
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2217 else
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2218 mode = ASCENDING;
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2219 }
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2220
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2221 lsort.set_compare (mode);
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2222
9921
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2223 // This determines the split ratio between the O(M*log2(N)) and O(M+N) algorithms.
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2224 static const double ratio = 1.0;
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2225 sortmode vmode = UNSORTED;
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2226
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2227 // 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
2228 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
2229 {
9921
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2230 vmode = values.is_sorted ();
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2231 // The table must not contain a NaN.
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2232 if ((vmode == ASCENDING && sort_isnan<T> (values(nval-1)))
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2233 || (vmode == DESCENDING && sort_isnan<T> (values(0))))
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2234 vmode = UNSORTED;
8814
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2235 }
9921
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2236
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2237 if (vmode != UNSORTED)
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2238 lsort.lookup_sorted (data (), n, values.data (), nval,
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2239 idx.fortran_vec (), vmode != mode);
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2240 else
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2241 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
2242
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2243 return idx;
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2244 }
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2245
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2246 template <class T>
9878
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2247 octave_idx_type
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2248 Array<T>::nnz (void) const
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2249 {
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2250 const T *src = data ();
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2251 octave_idx_type nel = nelem (), retval = 0;
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2252 const T zero = T ();
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2253 for (octave_idx_type i = 0; i < nel; i++)
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2254 if (src[i] != zero)
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2255 retval++;
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2256
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2257 return retval;
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
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2260 template <class T>
9341
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2261 Array<octave_idx_type>
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2262 Array<T>::find (octave_idx_type n, bool backward) const
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2263 {
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2264 Array<octave_idx_type> retval;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2265 const T *src = data ();
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2266 octave_idx_type nel = nelem ();
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2267 const T zero = T ();
9310
256c0db275b6 fix behavior of find
Jaroslav Hajek <highegg@gmail.com>
parents: 9237
diff changeset
2268 if (n < 0 || n >= nel)
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2269 {
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2270 // 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
2271 // 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
2272 octave_idx_type cnt = 0;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2273 for (octave_idx_type i = 0; i < nel; i++)
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2274 cnt += src[i] != zero;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2275
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
2276 retval.clear (cnt, 1);
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2277 octave_idx_type *dest = retval.fortran_vec ();
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2278 for (octave_idx_type i = 0; i < nel; i++)
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2279 if (src[i] != zero) *dest++ = i;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2280 }
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2281 else
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2282 {
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2283 // 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
2284 // optimistic, alloc the array in advance, and then resize if
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2285 // needed.
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
2286 retval.clear (n, 1);
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2287 if (backward)
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2288 {
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2289 // Do the search as a series of successive single-element searches.
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2290 octave_idx_type k = 0, l = nel - 1;
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 {
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2293 for (;l >= 0 && src[l] == zero; l--) ;
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)
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
2300 retval.resize (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.
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2307 octave_idx_type k = 0, l = 0;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2308 for (; k < n; k++)
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2309 {
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2310 for (;l != nel && src[l] == zero; l++) ;
9029
2df28ad88b0e small fix in Array::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9025
diff changeset
2311 if (l != nel)
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2312 retval(k) = l++;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2313 else
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2314 break;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2315 }
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2316 if (k < n)
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
2317 retval.resize (k, 1);
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2318 }
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
9046
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2321 // Fixup return dimensions, for Matlab compatibility.
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2322 // find(zeros(0,0)) -> zeros(0,0)
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2323 // find(zeros(1,0)) -> zeros(1,0)
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2324 // find(zeros(0,1)) -> zeros(0,1)
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2325 // find(zeros(0,X)) -> zeros(0,1)
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2326 // find(zeros(1,1)) -> zeros(0,0) !!!! WHY?
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2327 // find(zeros(0,1,0)) -> zeros(0,0)
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2328 // find(zeros(0,1,0,1)) -> zeros(0,0) etc
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2329
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2330 if ((numel () == 1 && retval.is_empty ())
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2331 || (rows () == 0 && dims ().numel (1) == 0))
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2332 retval.dimensions = dim_vector ();
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2333 else if (rows () == 1 && ndims () == 2)
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2334 retval.dimensions = dim_vector (1, retval.length ());
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2335
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2336 return retval;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2337 }
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2338
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2339 template <class T>
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2340 Array<T>
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2341 Array<T>::nth_element (const idx_vector& n, int dim) const
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2342 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2343 if (dim < 0 || dim >= ndims ())
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2344 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2345 (*current_liboctave_error_handler)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2346 ("nth_element: invalid dimension");
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2347 return Array<T> ();
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2348 }
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 dim_vector dv = dims ();
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2351 octave_idx_type ns = dv(dim);
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2352
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2353 octave_idx_type nn = n.length (ns);
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2354
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2355 dv(dim) = std::min (nn, ns);
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2356 dv.chop_trailing_singletons ();
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2357
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2358 Array<T> m (dv);
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2359
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2360 if (m.numel () == 0)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2361 return m;
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 sortmode mode = UNSORTED;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2364 octave_idx_type lo = 0;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2365
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2366 switch (n.idx_class ())
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 case idx_vector::class_scalar:
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2369 mode = ASCENDING;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2370 lo = n(0);
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2371 break;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2372 case idx_vector::class_range:
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2373 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2374 octave_idx_type inc = n.increment ();
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2375 if (inc == 1)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2376 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2377 mode = ASCENDING;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2378 lo = n(0);
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2379 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2380 else 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 = DESCENDING;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2383 lo = ns - 1 - 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 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2386 default:
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2387 break;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2388 }
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 if (mode == UNSORTED)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2391 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2392 (*current_liboctave_error_handler)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2393 ("nth_element: n must be a scalar or a contiguous range");
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2394 return Array<T> ();
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2395 }
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 octave_idx_type up = lo + nn;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2398
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2399 if (lo < 0 || up > ns)
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 (*current_liboctave_error_handler)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2402 ("nth_element: invalid element index");
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2403 return Array<T> ();
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2404 }
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 octave_idx_type iter = numel () / ns;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2407 octave_idx_type stride = 1;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2408
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2409 for (int i = 0; i < dim; i++)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2410 stride *= dv(i);
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2411
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2412 T *v = m.fortran_vec ();
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2413 const T *ov = data ();
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2414
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2415 OCTAVE_LOCAL_BUFFER (T, buf, ns);
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 octave_sort<T> lsort;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2418 lsort.set_compare (mode);
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 for (octave_idx_type j = 0; j < iter; j++)
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_idx_type kl = 0, ku = ns;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2423
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2424 if (stride == 1)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2425 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2426 // copy without NaNs.
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2427 // FIXME: impact on integer types noticeable?
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2428 for (octave_idx_type i = 0; i < ns; i++)
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 T tmp = ov[i];
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2431 if (sort_isnan<T> (tmp))
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2432 buf[--ku] = tmp;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2433 else
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2434 buf[kl++] = tmp;
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
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2437 ov += ns;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2438 }
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 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2441 octave_idx_type offset = j % stride;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2442 // copy without NaNs.
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2443 // FIXME: impact on integer types noticeable?
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2444 for (octave_idx_type i = 0; i < ns; i++)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2445 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2446 T tmp = ov[offset + i*stride];
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2447 if (sort_isnan<T> (tmp))
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2448 buf[--ku] = tmp;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2449 else
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2450 buf[kl++] = tmp;
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
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2453 if (offset == stride-1)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2454 ov += ns*stride;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2455 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2456
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2457 if (ku == ns)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2458 lsort.nth_element (buf, ns, lo, up);
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2459 else if (mode == ASCENDING)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2460 lsort.nth_element (buf, ku, lo, std::min (ku, up));
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2461 else
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 octave_idx_type nnan = ns - ku;
10258
e317791645c4 64-bit fixes
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
2464 octave_idx_type zero = 0;
e317791645c4 64-bit fixes
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
2465 lsort.nth_element (buf, ku, std::max (lo - nnan, zero),
e317791645c4 64-bit fixes
John W. Eaton <jwe@octave.org>
parents: 10158
diff changeset
2466 std::max (up - nnan, zero));
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2467 std::rotate (buf, buf + ku, buf + ns);
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
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2470 if (stride == 1)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2471 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2472 for (octave_idx_type i = 0; i < nn; i++)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2473 v[i] = buf[lo + i];
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 v += nn;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2476 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2477 else
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2478 {
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2479 octave_idx_type offset = j % stride;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2480 for (octave_idx_type i = 0; i < nn; i++)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2481 v[offset + stride * i] = buf[lo + i];
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2482 if (offset == stride-1)
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2483 v += nn*stride;
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 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2486
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2487 return m;
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2488 }
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2489
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2490
9237
3c1762c7e787 Add missing xxx_API decoration and remove misplaced ones
Michael Goffioul <michael.goffioul@gmail.com>
parents: 9222
diff changeset
2491 #define INSTANTIATE_ARRAY_SORT(T) template class OCTAVE_API octave_sort<T>;
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2492
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2493 #define NO_INSTANTIATE_ARRAY_SORT(T) \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2494 \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2495 template <> Array<T> \
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2496 Array<T>::sort (int, sortmode) const { return *this; } \
8721
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 (Array<octave_idx_type> &sidx, int, sortmode) const \
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2500 { sidx = Array<octave_idx_type> (); return *this; } \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2501 \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2502 template <> sortmode \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2503 Array<T>::is_sorted (sortmode) const \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2504 { return UNSORTED; } \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2505 \
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
2506 Array<T>::compare_fcn_type \
9920
56fbe170d354 fix issorted with NaNs in middle
Jaroslav Hajek <highegg@gmail.com>
parents: 9886
diff changeset
2507 safe_comparator (sortmode, const Array<T>&, bool) \
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2508 { return 0; } \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2509 \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2510 template <> Array<octave_idx_type> \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2511 Array<T>::sort_rows_idx (sortmode) const \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2512 { return Array<octave_idx_type> (); } \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2513 \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2514 template <> sortmode \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2515 Array<T>::is_sorted_rows (sortmode) const \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2516 { return UNSORTED; } \
8814
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2517 \
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2518 template <> octave_idx_type \
9222
7bd406e12e4d instantiate Array<void *> in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 9201
diff changeset
2519 Array<T>::lookup (T const &, sortmode) const \
8814
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2520 { return 0; } \
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2521 template <> Array<octave_idx_type> \
9921
7c8392a034e6 fix & improve lookup API
Jaroslav Hajek <highegg@gmail.com>
parents: 9920
diff changeset
2522 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
2523 { return Array<octave_idx_type> (); } \
9878
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2524 \
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2525 template <> octave_idx_type \
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2526 Array<T>::nnz (void) const\
ead4f9c82a9a implement Array<T>::nnz
Jaroslav Hajek <highegg@gmail.com>
parents: 9840
diff changeset
2527 { return 0; } \
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2528 template <> Array<octave_idx_type> \
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2529 Array<T>::find (octave_idx_type, bool) const\
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2530 { return Array<octave_idx_type> (); } \
9725
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2531 \
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2532 template <> Array<T> \
aea3a3a950e1 implement nth_element
Jaroslav Hajek <highegg@gmail.com>
parents: 9678
diff changeset
2533 Array<T>::nth_element (const idx_vector&, int) const { return Array<T> (); } \
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2534
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2535
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2536 template <class T>
7620
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2537 Array<T>
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2538 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
2539 {
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2540 dim_vector dv = dims ();
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2541 octave_idx_type nd = dv.length ();
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2542 Array<T> d;
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2543
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2544 if (nd > 2)
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2545 (*current_liboctave_error_handler) ("Matrix must be 2-dimensional");
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2546 else
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2547 {
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2548 octave_idx_type nnr = dv (0);
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2549 octave_idx_type nnc = dv (1);
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2550
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2551 if (nnr == 0 || nnc == 0)
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2552 ; // do nothing
7620
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2553 else if (nnr != 1 && nnc != 1)
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2554 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2555 if (k > 0)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2556 nnc -= k;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2557 else if (k < 0)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2558 nnr += k;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2559
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2560 if (nnr > 0 && nnc > 0)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2561 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2562 octave_idx_type ndiag = (nnr < nnc) ? nnr : nnc;
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 d.resize (dim_vector (ndiag, 1));
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 if (k > 0)
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 for (octave_idx_type i = 0; i < ndiag; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2569 d.xelem (i) = elem (i, i+k);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2570 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2571 else if (k < 0)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2572 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2573 for (octave_idx_type i = 0; i < ndiag; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2574 d.xelem (i) = elem (i-k, i);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2575 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2576 else
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2577 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2578 for (octave_idx_type i = 0; i < ndiag; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2579 d.xelem (i) = elem (i, i);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2580 }
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 else
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2583 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2584 ("diag: requested diagonal out of range");
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2585 }
7620
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2586 else if (nnr != 0 && nnc != 0)
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2587 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2588 octave_idx_type roff = 0;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2589 octave_idx_type coff = 0;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2590 if (k > 0)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2591 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2592 roff = 0;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2593 coff = k;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2594 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2595 else if (k < 0)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2596 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2597 roff = -k;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2598 coff = 0;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2599 }
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 if (nnr == 1)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2602 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2603 octave_idx_type n = nnc + std::abs (k);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2604 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
2605
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2606 for (octave_idx_type i = 0; i < nnc; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2607 d.xelem (i+roff, i+coff) = elem (0, i);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2608 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2609 else
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2610 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2611 octave_idx_type n = nnr + std::abs (k);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2612 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
2613
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2614 for (octave_idx_type i = 0; i < nnr; i++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2615 d.xelem (i+roff, i+coff) = elem (i, 0);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2616 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2617 }
7620
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2618 }
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2619
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2620 return d;
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2621 }
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2622
4517
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
2623 template <class T>
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
2624 void
3933
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3657
diff changeset
2625 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
2626 {
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
2627 os << prefix << "rep address: " << rep << '\n'
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
2628 << prefix << "rep->len: " << rep->len << '\n'
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
2629 << 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
2630 << prefix << "rep->count: " << rep->count << '\n'
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
2631 << 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
2632 << prefix << "slice_len: " << slice_len << '\n';
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
2633
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
2634 // 2D info:
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
2635 //
4657
a585a2dfca6c [project @ 2003-11-25 01:30:09 by jwe]
jwe
parents: 4656
diff changeset
2636 // << pefix << "rows: " << rows () << "\n"
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
2637 // << prefix << "cols: " << cols () << "\n";
3933
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3657
diff changeset
2638 }
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3657
diff changeset
2639
9201
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2640 template <class T>
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2641 void Array<T>::instantiation_guard ()
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2642 {
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2643 // This guards against accidental implicit instantiations.
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2644 // Array<T> instances should always be explicit and use INSTANTIATE_ARRAY.
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2645 T::__xXxXx__();
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2646 }
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2647
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2648 #define INSTANTIATE_ARRAY(T, API) \
9201
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2649 template <> void Array<T>::instantiation_guard () { } \
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2650 template class API Array<T>
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2651
9732
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2652 // FIXME: is this used?
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2653
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2654 template <class T>
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2655 std::ostream&
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2656 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
2657 {
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2658 dim_vector a_dims = a.dims ();
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2659
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2660 int n_dims = a_dims.length ();
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2661
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2662 os << n_dims << "-dimensional array";
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2663
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2664 if (n_dims)
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2665 os << " (" << a_dims.str () << ")";
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2666
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2667 os <<"\n\n";
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2668
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2669 if (n_dims)
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2670 {
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2671 os << "data:";
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2672
10350
12884915a8e4 merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
parents: 10314
diff changeset
2673 Array<octave_idx_type> ra_idx (n_dims, 1, 0);
9732
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2674
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2675 // 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
2676
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2677 octave_idx_type m = 1;
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2678 for (int i = 2; i < n_dims; i++)
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2679 m *= a_dims(i);
9732
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2680
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2681 if (m == 1)
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2682 {
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2683 octave_idx_type rows = 0;
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2684 octave_idx_type cols = 0;
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2685
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2686 switch (n_dims)
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2687 {
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2688 case 2:
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2689 rows = a_dims(0);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2690 cols = a_dims(1);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2691
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2692 for (octave_idx_type j = 0; j < rows; j++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2693 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2694 ra_idx(0) = j;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2695 for (octave_idx_type k = 0; k < cols; k++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2696 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2697 ra_idx(1) = k;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2698 os << " " << a.elem(ra_idx);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2699 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2700 os << "\n";
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2701 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2702 break;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2703
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2704 default:
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2705 rows = a_dims(0);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2706
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2707 for (octave_idx_type k = 0; k < rows; k++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2708 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2709 ra_idx(0) = k;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2710 os << " " << a.elem(ra_idx);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2711 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2712 break;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2713 }
9732
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2714
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2715 os << "\n";
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2716 }
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2717 else
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2718 {
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2719 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
2720 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
2721
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2722 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
2723 {
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2724 os << "\n(:,:,";
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2725
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2726 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
2727 os << ra_idx(j) + 1 << ",";
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2728
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2729 os << ra_idx(n_dims - 1) + 1 << ") = \n";
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2730
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2731 for (octave_idx_type j = 0; j < rows; j++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2732 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2733 ra_idx(0) = j;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2734
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2735 for (octave_idx_type k = 0; k < cols; k++)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2736 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2737 ra_idx(1) = k;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2738 os << " " << a.elem(ra_idx);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2739 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2740
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2741 os << "\n";
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2742 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2743
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2744 os << "\n";
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2745
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2746 if (i != m - 1)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10270
diff changeset
2747 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
2748 }
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2749 }
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2750 }
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2751
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2752 return os;
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents: 9731
diff changeset
2753 }