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annotate liboctave/Array.cc @ 9546:1beb23d2b892

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optimize op= in common cases
author Jaroslav Hajek <highegg@gmail.com>
date Wed, 19 Aug 2009 13:47:59 +0200
parents b096d11237be
children 948795dc1974
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1993
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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
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8 This file is part of Octave.
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9
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10 Octave is free software; you can redistribute it and/or modify it
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11 under the terms of the GNU General Public License as published by the
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12 Free Software Foundation; either version 3 of the License, or (at your
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13 option) any later version.
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14
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15 Octave is distributed in the hope that it will be useful, but WITHOUT
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16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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17 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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18 for more details.
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19
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20 You should have received a copy of the GNU General Public License
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21 along with Octave; see the file COPYING. If not, see
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22 <http://www.gnu.org/licenses/>.
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23
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24 */
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25
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26 #ifdef HAVE_CONFIG_H
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27 #include <config.h>
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28 #endif
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29
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30 #include <cassert>
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31 #include <climits>
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32
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33 #include <iostream>
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34 #include <sstream>
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35 #include <vector>
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36 #include <algorithm>
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37 #include <new>
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38
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39 #include "Array.h"
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40 #include "Array-util.h"
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41 #include "idx-vector.h"
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42 #include "lo-error.h"
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43 #include "oct-locbuf.h"
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44
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45 // One dimensional array class. Handles the reference counting for
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46 // all the derived classes.
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47
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48 template <class T>
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49 void
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50 Array<T>::make_unique (void)
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51 {
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52 if (rep->count > 1)
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53 {
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54 --rep->count;
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55 rep = new ArrayRep (slice_data, slice_len, true);
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56 slice_data = rep->data;
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57 }
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58 }
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59
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60 template <class T>
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61 Array<T>::Array (const Array<T>& a, const dim_vector& dv)
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62 : rep (a.rep), dimensions (dv),
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63 slice_data (a.slice_data), slice_len (a.slice_len)
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64 {
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65 rep->count++;
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66
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67 if (a.numel () < dv.numel ())
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68 (*current_liboctave_error_handler)
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69 ("Array::Array (const Array&, const dim_vector&): dimension mismatch");
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70 }
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71
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72 template <class T>
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73 Array<T>::~Array (void)
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74 {
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75 if (--rep->count <= 0)
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76 delete rep;
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77 }
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78
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79 template <class T>
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80 Array<T>&
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81 Array<T>::operator = (const Array<T>& a)
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82 {
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83 if (this != &a)
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84 {
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85 if (--rep->count <= 0)
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86 delete rep;
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87
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88 rep = a.rep;
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89 rep->count++;
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90
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91 dimensions = a.dimensions;
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92 slice_data = a.slice_data;
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93 slice_len = a.slice_len;
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94 }
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95
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96 return *this;
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97 }
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98
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99 template <class T>
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100 void
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101 Array<T>::fill (const T& val)
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102 {
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103 if (rep->count > 1)
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104 {
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105 --rep->count;
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106 rep = new ArrayRep (length (), val);
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107 slice_data = rep->data;
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108 }
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109 else
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110 std::fill (slice_data, slice_data + slice_len, val);
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111 }
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112
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113 template <class T>
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114 void
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115 Array<T>::clear (void)
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116 {
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117 if (--rep->count <= 0)
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118 delete rep;
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119
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120 rep = nil_rep ();
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121 rep->count++;
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122 slice_data = rep->data;
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123 slice_len = rep->len;
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124
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125 dimensions = dim_vector ();
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126 }
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127
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128 template <class T>
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129 Array<T>
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130 Array<T>::squeeze (void) const
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131 {
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132 Array<T> retval = *this;
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133
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134 if (ndims () > 2)
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135 {
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136 bool dims_changed = false;
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137
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138 dim_vector new_dimensions = dimensions;
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139
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140 int k = 0;
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141
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142 for (int i = 0; i < ndims (); i++)
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143 {
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144 if (dimensions(i) == 1)
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145 dims_changed = true;
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146 else
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147 new_dimensions(k++) = dimensions(i);
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148 }
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149
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150 if (dims_changed)
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151 {
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152 switch (k)
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153 {
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154 case 0:
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155 new_dimensions = dim_vector (1, 1);
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156 break;
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157
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158 case 1:
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159 {
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160 octave_idx_type tmp = new_dimensions(0);
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161
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162 new_dimensions.resize (2);
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163
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164 new_dimensions(0) = tmp;
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165 new_dimensions(1) = 1;
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166 }
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167 break;
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168
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169 default:
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170 new_dimensions.resize (k);
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171 break;
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172 }
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173 }
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174
8524
937921654627 clean up Array and DiagArray2
Jaroslav Hajek <highegg@gmail.com>
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175 retval = Array<T> (*this, new_dimensions);
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176 }
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177
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178 return retval;
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179 }
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180
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181 // KLUGE
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182
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183 // The following get_size functions will throw a std::bad_alloc ()
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184 // exception if the requested size is larger than can be indexed by
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185 // octave_idx_type. This may be smaller than the actual amount of
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186 // memory that can be safely allocated on a system. However, if we
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187 // don't fail here, we can end up with a mysterious crash inside a
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188 // function that is iterating over an array using octave_idx_type
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189 // indices.
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190
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191 // A guess (should be quite conservative).
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192 #define MALLOC_OVERHEAD 1024
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193
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194 template <class T>
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195 octave_idx_type
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196 Array<T>::get_size (octave_idx_type r, octave_idx_type c)
4513
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197 {
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198 static int nl;
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199 static double dl
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200 = frexp (static_cast<double>
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201 (std::numeric_limits<octave_idx_type>::max() - MALLOC_OVERHEAD) / sizeof (T), &nl);
4513
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202
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203 int nr, nc;
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204 double dr = frexp (static_cast<double> (r), &nr); // r = dr * 2^nr
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205 double dc = frexp (static_cast<double> (c), &nc); // c = dc * 2^nc
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206
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207 int nt = nr + nc;
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208 double dt = dr * dc;
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209
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210 if (dt < 0.5)
4513
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211 {
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212 nt--;
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213 dt *= 2;
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214 }
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215
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216 if (nt < nl || (nt == nl && dt < dl))
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217 return r * c;
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218 else
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219 {
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220 throw std::bad_alloc ();
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221 return 0;
e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe]
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diff changeset
222 }
237
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223 }
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224
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225 template <class T>
5275
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226 octave_idx_type
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227 Array<T>::get_size (octave_idx_type r, octave_idx_type c, octave_idx_type p)
237
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228 {
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229 static int nl;
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230 static double dl
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231 = frexp (static_cast<double>
5275
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232 (std::numeric_limits<octave_idx_type>::max() - MALLOC_OVERHEAD) / sizeof (T), &nl);
4513
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233
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234 int nr, nc, np;
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235 double dr = frexp (static_cast<double> (r), &nr);
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236 double dc = frexp (static_cast<double> (c), &nc);
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237 double dp = frexp (static_cast<double> (p), &np);
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238
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239 int nt = nr + nc + np;
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240 double dt = dr * dc * dp;
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241
4532
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242 if (dt < 0.5)
659
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diff changeset
243 {
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244 nt--;
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245 dt *= 2;
237
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246
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247 if (dt < 0.5)
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diff changeset
248 {
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249 nt--;
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diff changeset
250 dt *= 2;
01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe]
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diff changeset
251 }
659
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diff changeset
252 }
1619
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253
6674
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diff changeset
254 if (nt < nl || (nt == nl && dt < dl))
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diff changeset
255 return r * c * p;
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diff changeset
256 else
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diff changeset
257 {
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diff changeset
258 throw std::bad_alloc ();
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diff changeset
259 return 0;
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diff changeset
260 }
237
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diff changeset
261 }
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262
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263 template <class T>
5275
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diff changeset
264 octave_idx_type
4513
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diff changeset
265 Array<T>::get_size (const dim_vector& ra_idx)
237
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266 {
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267 static int nl;
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diff changeset
268 static double dl
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diff changeset
269 = frexp (static_cast<double>
5275
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270 (std::numeric_limits<octave_idx_type>::max() - MALLOC_OVERHEAD) / sizeof (T), &nl);
4513
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271
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272 int n = ra_idx.length ();
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273
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274 int nt = 0;
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275 double dt = 1;
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276
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277 for (int i = 0; i < n; i++)
237
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278 {
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279 int nra_idx;
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diff changeset
280 double dra_idx = frexp (static_cast<double> (ra_idx(i)), &nra_idx);
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281
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diff changeset
282 nt += nra_idx;
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283 dt *= dra_idx;
4532
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284
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diff changeset
285 if (dt < 0.5)
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diff changeset
286 {
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diff changeset
287 nt--;
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diff changeset
288 dt *= 2;
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diff changeset
289 }
237
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290 }
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291
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292 if (nt < nl || (nt == nl && dt < dl))
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diff changeset
293 {
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diff changeset
294 octave_idx_type retval = 1;
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295
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diff changeset
296 for (int i = 0; i < n; i++)
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297 retval *= ra_idx(i);
6674
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diff changeset
298
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diff changeset
299 return retval;
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diff changeset
300 }
6674
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diff changeset
301 else
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diff changeset
302 {
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diff changeset
303 throw std::bad_alloc ();
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diff changeset
304 return 0;
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diff changeset
305 }
237
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diff changeset
306 }
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307
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diff changeset
308 #undef MALLOC_OVERHEAD
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diff changeset
309
237
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diff changeset
310 template <class T>
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diff changeset
311 octave_idx_type
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diff changeset
312 Array<T>::compute_index (const Array<octave_idx_type>& ra_idx) const
237
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe]
jwe
parents:
diff changeset
313 {
5275
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jwe
parents: 5265
diff changeset
314 octave_idx_type retval = -1;
4513
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jwe
parents: 4192
diff changeset
315
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
316 int n = dimensions.length ();
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
317
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
318 if (n > 0 && n == ra_idx.length ())
237
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe]
jwe
parents:
diff changeset
319 {
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
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parents: 4192
diff changeset
320 retval = ra_idx(--n);
237
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe]
jwe
parents:
diff changeset
321
4513
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jwe
parents: 4192
diff changeset
322 while (--n >= 0)
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
323 {
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
324 retval *= dimensions(n);
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
325 retval += ra_idx(n);
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
326 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
327 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
328 else
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
329 (*current_liboctave_error_handler)
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
330 ("Array<T>::compute_index: invalid ra_idxing operation");
237
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe]
jwe
parents:
diff changeset
331
4513
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jwe
parents: 4192
diff changeset
332 return retval;
237
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe]
jwe
parents:
diff changeset
333 }
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe]
jwe
parents:
diff changeset
334
2049
468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe]
jwe
parents: 2006
diff changeset
335 template <class T>
468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe]
jwe
parents: 2006
diff changeset
336 T
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
337 Array<T>::range_error (const char *fcn, octave_idx_type n) const
2049
468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe]
jwe
parents: 2006
diff changeset
338 {
2109
356f70c8fcbd [project @ 1996-04-30 12:31:30 by jwe]
jwe
parents: 2049
diff changeset
339 (*current_liboctave_error_handler) ("%s (%d): range error", fcn, n);
2049
468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe]
jwe
parents: 2006
diff changeset
340 return T ();
468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe]
jwe
parents: 2006
diff changeset
341 }
468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe]
jwe
parents: 2006
diff changeset
342
468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe]
jwe
parents: 2006
diff changeset
343 template <class T>
468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe]
jwe
parents: 2006
diff changeset
344 T&
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
345 Array<T>::range_error (const char *fcn, octave_idx_type n)
2049
468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe]
jwe
parents: 2006
diff changeset
346 {
2109
356f70c8fcbd [project @ 1996-04-30 12:31:30 by jwe]
jwe
parents: 2049
diff changeset
347 (*current_liboctave_error_handler) ("%s (%d): range error", fcn, n);
2049
468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe]
jwe
parents: 2006
diff changeset
348 static T foo;
468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe]
jwe
parents: 2006
diff changeset
349 return foo;
468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe]
jwe
parents: 2006
diff changeset
350 }
468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe]
jwe
parents: 2006
diff changeset
351
3933
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3657
diff changeset
352 template <class T>
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
353 T
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
354 Array<T>::range_error (const char *fcn, octave_idx_type i, octave_idx_type j) const
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
355 {
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
356 (*current_liboctave_error_handler)
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
357 ("%s (%d, %d): range error", fcn, i, j);
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
358 return T ();
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
359 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
360
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
361 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
362 T&
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
363 Array<T>::range_error (const char *fcn, octave_idx_type i, octave_idx_type j)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
364 {
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
365 (*current_liboctave_error_handler)
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
366 ("%s (%d, %d): range error", fcn, i, j);
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
367 static T foo;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
368 return foo;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
369 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
370
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
371 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
372 T
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
373 Array<T>::range_error (const char *fcn, octave_idx_type i, octave_idx_type j, octave_idx_type k) const
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
374 {
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
375 (*current_liboctave_error_handler)
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
376 ("%s (%d, %d, %d): range error", fcn, i, j, k);
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
377 return T ();
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
378 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
379
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
380 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
381 T&
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
382 Array<T>::range_error (const char *fcn, octave_idx_type i, octave_idx_type j, octave_idx_type k)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
383 {
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
384 (*current_liboctave_error_handler)
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
385 ("%s (%d, %d, %d): range error", fcn, i, j, k);
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
386 static T foo;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
387 return foo;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
388 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
389
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
390 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
391 T
6867
83619ae96c1d [project @ 2007-09-06 12:08:44 by dbateman]
dbateman
parents: 6674
diff changeset
392 Array<T>::range_error (const char *fcn, const Array<octave_idx_type>& ra_idx) const
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
393 {
5765
7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe]
jwe
parents: 5632
diff changeset
394 std::ostringstream buf;
4661
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe]
jwe
parents: 4657
diff changeset
395
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe]
jwe
parents: 4657
diff changeset
396 buf << fcn << " (";
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe]
jwe
parents: 4657
diff changeset
397
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
398 octave_idx_type n = ra_idx.length ();
4661
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe]
jwe
parents: 4657
diff changeset
399
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe]
jwe
parents: 4657
diff changeset
400 if (n > 0)
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe]
jwe
parents: 4657
diff changeset
401 buf << ra_idx(0);
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe]
jwe
parents: 4657
diff changeset
402
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
403 for (octave_idx_type i = 1; i < n; i++)
4661
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe]
jwe
parents: 4657
diff changeset
404 buf << ", " << ra_idx(i);
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe]
jwe
parents: 4657
diff changeset
405
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe]
jwe
parents: 4657
diff changeset
406 buf << "): range error";
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe]
jwe
parents: 4657
diff changeset
407
5765
7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe]
jwe
parents: 5632
diff changeset
408 std::string buf_str = buf.str ();
7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe]
jwe
parents: 5632
diff changeset
409
7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe]
jwe
parents: 5632
diff changeset
410 (*current_liboctave_error_handler) (buf_str.c_str ());
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
411
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
412 return T ();
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
413 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
414
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
415 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
416 T&
6867
83619ae96c1d [project @ 2007-09-06 12:08:44 by dbateman]
dbateman
parents: 6674
diff changeset
417 Array<T>::range_error (const char *fcn, const Array<octave_idx_type>& ra_idx)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
418 {
5765
7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe]
jwe
parents: 5632
diff changeset
419 std::ostringstream buf;
4661
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe]
jwe
parents: 4657
diff changeset
420
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe]
jwe
parents: 4657
diff changeset
421 buf << fcn << " (";
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe]
jwe
parents: 4657
diff changeset
422
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
423 octave_idx_type n = ra_idx.length ();
4661
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe]
jwe
parents: 4657
diff changeset
424
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe]
jwe
parents: 4657
diff changeset
425 if (n > 0)
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe]
jwe
parents: 4657
diff changeset
426 buf << ra_idx(0);
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe]
jwe
parents: 4657
diff changeset
427
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
428 for (octave_idx_type i = 1; i < n; i++)
4661
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe]
jwe
parents: 4657
diff changeset
429 buf << ", " << ra_idx(i);
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe]
jwe
parents: 4657
diff changeset
430
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe]
jwe
parents: 4657
diff changeset
431 buf << "): range error";
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe]
jwe
parents: 4657
diff changeset
432
5765
7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe]
jwe
parents: 5632
diff changeset
433 std::string buf_str = buf.str ();
7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe]
jwe
parents: 5632
diff changeset
434
7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe]
jwe
parents: 5632
diff changeset
435 (*current_liboctave_error_handler) (buf_str.c_str ());
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
436
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
437 static T foo;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
438 return foo;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
439 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
440
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
441 template <class T>
4567
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe]
jwe
parents: 4553
diff changeset
442 Array<T>
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe]
jwe
parents: 4553
diff changeset
443 Array<T>::reshape (const dim_vector& new_dims) const
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe]
jwe
parents: 4553
diff changeset
444 {
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe]
jwe
parents: 4553
diff changeset
445 Array<T> retval;
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe]
jwe
parents: 4553
diff changeset
446
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe]
jwe
parents: 4553
diff changeset
447 if (dimensions != new_dims)
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe]
jwe
parents: 4553
diff changeset
448 {
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe]
jwe
parents: 4553
diff changeset
449 if (dimensions.numel () == new_dims.numel ())
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe]
jwe
parents: 4553
diff changeset
450 retval = Array<T> (*this, new_dims);
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe]
jwe
parents: 4553
diff changeset
451 else
8527
6b074f37e8d7 reshape: improve error message
John W. Eaton <jwe@octave.org>
parents: 8526
diff changeset
452 {
6b074f37e8d7 reshape: improve error message
John W. Eaton <jwe@octave.org>
parents: 8526
diff changeset
453 std::string dimensions_str = dimensions.str ();
6b074f37e8d7 reshape: improve error message
John W. Eaton <jwe@octave.org>
parents: 8526
diff changeset
454 std::string new_dims_str = new_dims.str ();
6b074f37e8d7 reshape: improve error message
John W. Eaton <jwe@octave.org>
parents: 8526
diff changeset
455
6b074f37e8d7 reshape: improve error message
John W. Eaton <jwe@octave.org>
parents: 8526
diff changeset
456 (*current_liboctave_error_handler)
6b074f37e8d7 reshape: improve error message
John W. Eaton <jwe@octave.org>
parents: 8526
diff changeset
457 ("reshape: can't reshape %s array to %s array",
6b074f37e8d7 reshape: improve error message
John W. Eaton <jwe@octave.org>
parents: 8526
diff changeset
458 dimensions_str.c_str (), new_dims_str.c_str ());
6b074f37e8d7 reshape: improve error message
John W. Eaton <jwe@octave.org>
parents: 8526
diff changeset
459 }
4567
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe]
jwe
parents: 4553
diff changeset
460 }
4916
c45f14873b5e [project @ 2004-07-26 14:35:12 by jwe]
jwe
parents: 4915
diff changeset
461 else
c45f14873b5e [project @ 2004-07-26 14:35:12 by jwe]
jwe
parents: 4915
diff changeset
462 retval = *this;
4567
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe]
jwe
parents: 4553
diff changeset
463
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe]
jwe
parents: 4553
diff changeset
464 return retval;
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe]
jwe
parents: 4553
diff changeset
465 }
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe]
jwe
parents: 4553
diff changeset
466
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
467 // Helper class for multi-d dimension permuting (generalized transpose).
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
468 class rec_permute_helper
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
469 {
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
470 octave_idx_type *dim, *stride;
9012
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
471 bool use_blk;
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
472 int top;
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
473
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
474 public:
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
475 rec_permute_helper (const dim_vector& dv, const Array<octave_idx_type>& perm)
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
476 {
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
477 int n = dv.length ();
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
478 assert (n == perm.length ());
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
479
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
480 dim = new octave_idx_type [2*n];
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
481 // A hack to avoid double allocation
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
482 stride = dim + n;
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 // Get cumulative dimensions.
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
485 OCTAVE_LOCAL_BUFFER (octave_idx_type, cdim, n+1);
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
486 cdim[0] = 1;
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
487 for (int i = 1; i < n+1; i++) cdim[i] = cdim[i-1] * dv(i-1);
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
488
9012
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
489 // Setup the permuted strides.
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
490 for (int k = 0; k < n; k++)
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
491 {
9012
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
492 int kk = perm(k);
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
493 dim[k] = dv(kk);
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
494 stride[k] = cdim[kk];
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
495 }
9012
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
496
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
497 // Reduce contiguous runs.
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
498 top = 0;
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
499 for (int k = 1; k < n; k++)
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
500 {
9012
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
501 if (stride[k] == stride[top]*dim[top])
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
502 dim[top] *= dim[k];
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
503 else
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
504 {
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
505 top++;
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
506 dim[top] = dim[k];
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
507 stride[top] = stride[k];
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
508 }
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
509 }
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
510
9012
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
511 // Determine whether we can use block transposes.
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
512 use_blk = top >= 1 && stride[1] == 1 && stride[0] == dim[1];
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
513
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
514 }
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
515
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
516 ~rec_permute_helper (void) { delete [] dim; }
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
517
9012
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
518 // Helper method for fast blocked transpose.
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
519 template <class T>
9121
bb62bc406ea7 reuse fast blocked transpose implementation from rec_permute_helper in Array<T>::transpose
Jaroslav Hajek <highegg@gmail.com>
parents: 9100
diff changeset
520 static T *
bb62bc406ea7 reuse fast blocked transpose implementation from rec_permute_helper in Array<T>::transpose
Jaroslav Hajek <highegg@gmail.com>
parents: 9100
diff changeset
521 blk_trans (const T *src, T *dest, octave_idx_type nr, octave_idx_type nc)
9012
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
522 {
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
523 static const octave_idx_type m = 8;
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
524 OCTAVE_LOCAL_BUFFER (T, blk, m*m);
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
525 for (octave_idx_type kr = 0; kr < nr; kr += m)
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
526 for (octave_idx_type kc = 0; kc < nc; kc += m)
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
527 {
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
528 octave_idx_type lr = std::min (m, nr - kr);
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
529 octave_idx_type lc = std::min (m, nc - kc);
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
530 if (lr == m && lc == m)
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
531 {
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
532 const T *ss = src + kc * nr + kr;
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
533 for (octave_idx_type j = 0; j < m; j++)
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
534 for (octave_idx_type i = 0; i < m; i++)
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
535 blk[j*m+i] = ss[j*nr + i];
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
536 T *dd = dest + kr * nc + kc;
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
537 for (octave_idx_type j = 0; j < m; j++)
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
538 for (octave_idx_type i = 0; i < m; i++)
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
539 dd[j*nc+i] = blk[i*m+j];
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
540 }
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
541 else
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
542 {
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
543 const T *ss = src + kc * nr + kr;
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
544 for (octave_idx_type j = 0; j < lc; j++)
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
545 for (octave_idx_type i = 0; i < lr; i++)
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
546 blk[j*m+i] = ss[j*nr + i];
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
547 T *dd = dest + kr * nc + kc;
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
548 for (octave_idx_type j = 0; j < lr; j++)
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
549 for (octave_idx_type i = 0; i < lc; i++)
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
550 dd[j*nc+i] = blk[i*m+j];
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
551 }
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
552 }
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
553
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
554 return dest + nr*nc;
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
555 }
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
556 private:
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
557
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
558 // Recursive N-d generalized transpose
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
559 template <class T>
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
560 T *do_permute (const T *src, T *dest, int lev) const
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
561 {
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
562 if (lev == 0)
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
563 {
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
564 octave_idx_type step = stride[0], len = dim[0];
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
565 if (step == 1)
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
566 dest = std::copy (src, src + len, dest);
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
567 else
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
568 {
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
569 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
570 dest[i] = src[j];
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
571
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
572 dest += len;
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
573 }
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
574 }
9012
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
575 else if (use_blk && lev == 1)
9f5e095555fc smarter algorithm for permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8920
diff changeset
576 dest = blk_trans (src, dest, dim[1], dim[0]);
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
577 else
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
578 {
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
579 octave_idx_type step = stride[lev], len = dim[lev];
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
580 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
581 dest = do_permute (src + i * step, dest, lev-1);
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
582 }
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
583
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
584 return dest;
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
585 }
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
586
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
587 public:
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
588
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
589 template <class T>
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
590 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
591
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
592 };
7241
da540e715d05 [project @ 2007-12-03 22:55:20 by jwe]
jwe
parents: 7189
diff changeset
593
5607
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
594
4567
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe]
jwe
parents: 4553
diff changeset
595 template <class T>
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
596 Array<T>
5607
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
597 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
598 {
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
599 Array<T> retval;
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
600
5607
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
601 Array<octave_idx_type> perm_vec = perm_vec_arg;
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
602
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
603 dim_vector dv = dims ();
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
604
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
605 int perm_vec_len = perm_vec_arg.length ();
5148
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
606
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
607 if (perm_vec_len < dv.length ())
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
608 (*current_liboctave_error_handler)
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
609 ("%s: invalid permutation vector", inv ? "ipermute" : "permute");
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
610
9507
b096d11237be dim_vector improvements
Jaroslav Hajek <highegg@gmail.com>
parents: 9341
diff changeset
611 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
612
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
613 // Append singleton dimensions as needed.
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
614 dv.resize (perm_vec_len, 1);
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
615
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
616 // Need this array to check for identical elements in permutation array.
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
617 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
618
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
619 // Find dimension vector of permuted array.
5148
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
620 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
621 {
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
622 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
623 if (perm_elt >= perm_vec_len || perm_elt < 0)
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
624 {
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
625 (*current_liboctave_error_handler)
5148
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
626 ("%s: permutation vector contains an invalid element",
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
627 inv ? "ipermute" : "permute");
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
628
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
629 return retval;
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
630 }
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
631
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
632 if (checked[perm_elt])
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
633 {
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
634 (*current_liboctave_error_handler)
5148
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
635 ("%s: permutation vector cannot contain identical elements",
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
636 inv ? "ipermute" : "permute");
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
637
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
638 return retval;
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
639 }
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
640 else
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
641 checked[perm_elt] = true;
5148
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
642
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe]
jwe
parents: 5120
diff changeset
643 dv_new(i) = dv(perm_elt);
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
644 }
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
645
5607
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
646 if (inv)
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
647 {
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
648 for (int i = 0; i < perm_vec_len; i++)
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
649 perm_vec(perm_vec_arg(i)) = i;
5607
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
650 }
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
651
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
652 retval = Array<T> (dv_new);
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
653
5940
0dd8428bb260 [project @ 2006-08-18 17:50:23 by jwe]
jwe
parents: 5837
diff changeset
654 if (numel () > 0)
5607
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe]
jwe
parents: 5535
diff changeset
655 {
8410
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
656 rec_permute_helper rh (dv, perm_vec);
ba24ecd4c019 optimize permute
Jaroslav Hajek <highegg@gmail.com>
parents: 8390
diff changeset
657 rh.permute (data (), retval.fortran_vec ());
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
658 }
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
659
5340
15843d76156d [project @ 2005-05-06 16:26:58 by jwe]
jwe
parents: 5338
diff changeset
660 retval.chop_trailing_singletons ();
5338
c4b55d47122e [project @ 2005-05-05 17:28:51 by jwe]
jwe
parents: 5307
diff changeset
661
4593
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
662 return retval;
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
663 }
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe]
jwe
parents: 4592
diff changeset
664
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
665 // 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
666 // 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
667 // 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
668 // Also, the recursion solution is cleaner and more understandable.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
669 class rec_index_helper
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
670 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
671 octave_idx_type *dim, *cdim;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
672 idx_vector *idx;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
673 int top;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
674
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
675 public:
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
676 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
677 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
678 int n = ia.length ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
679 assert (n > 0 && (dv.length () == std::max (n, 2)));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
680
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
681 dim = new octave_idx_type [2*n];
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
682 // A hack to avoid double allocation
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
683 cdim = dim + n;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
684 idx = new idx_vector [n];
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
685 top = 0;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
686
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
687 dim[0] = dv(0);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
688 cdim[0] = 1;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
689 idx[0] = ia(0);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
690
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
691 for (int i = 1; i < n; i++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
692 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
693 // Try reduction...
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
694 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
695 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
696 // Reduction successful, fold dimensions.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
697 dim[top] *= dv(i);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
698 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
699 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
700 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
701 // Unsuccessful, store index & cumulative dim.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
702 top++;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
703 idx[top] = ia(i);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
704 dim[top] = dv(i);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
705 cdim[top] = cdim[top-1] * dim[top-1];
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
706 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
707 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
708 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
709
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
710 ~rec_index_helper (void) { delete [] idx; delete [] dim; }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
711
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
712 private:
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
713
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
714 // Recursive N-d indexing
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
715 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
716 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
717 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
718 if (lev == 0)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
719 dest += idx[0].index (src, dim[0], dest);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
720 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
721 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
722 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
723 for (octave_idx_type i = 0; i < n; i++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
724 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
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 return dest;
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
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
730 // Recursive N-d indexed assignment
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 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
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 src += idx[0].assign (src, dim[0], dest);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
736 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
737 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
738 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
739 for (octave_idx_type i = 0; i < n; i++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
740 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
741 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
742
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
743 return src;
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
744 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
745
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
746 // Recursive N-d indexed assignment
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
747 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
748 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
749 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
750 if (lev == 0)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
751 idx[0].fill (val, dim[0], dest);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
752 else
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 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
755 for (octave_idx_type i = 0; i < n; i++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
756 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
757 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
758 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
759
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
760 public:
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
761
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
762 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
763 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
764
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
765 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
766 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
767
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
768 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
769 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
770
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
771 bool is_cont_range (octave_idx_type& l,
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
772 octave_idx_type& u) const
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
773 {
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
774 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
775 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
776 };
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
777
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
778 // Helper class for multi-d recursive resizing
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
779 // This handles resize () in an efficient manner, touching memory only
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
780 // once (apart from reinitialization)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
781 class rec_resize_helper
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
782 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
783 octave_idx_type *cext, *sext, *dext;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
784 int n;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
785
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
786 public:
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
787 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
788 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
789 int l = ndv.length ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
790 assert (odv.length () == l);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
791 octave_idx_type ld = 1;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
792 int i = 0;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
793 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
794 n = l - i;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
795 cext = new octave_idx_type[3*n];
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
796 // Trick to avoid three allocations
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
797 sext = cext + n;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
798 dext = sext + n;
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 octave_idx_type sld = ld, dld = ld;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
801 for (int j = 0; j < n; j++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
802 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
803 cext[j] = std::min (ndv(i+j), odv(i+j));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
804 sext[j] = sld *= odv(i+j);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
805 dext[j] = dld *= ndv(i+j);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
806 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
807 cext[0] *= ld;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
808 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
809
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
810 ~rec_resize_helper (void) { delete [] cext; }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
811
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
812 private:
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
813 // recursive resizing
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
814 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
815 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
816 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
817 if (lev == 0)
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 T* destc = std::copy (src, src + cext[0], dest);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
820 std::fill (destc, dest + dext[0], rfv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
821 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
822 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
823 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
824 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
825 for (k = 0; k < cext[lev]; k++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
826 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
827
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
828 std::fill (dest + k * dd, dest + dext[lev], rfv);
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 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
831 public:
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
832 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
833 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
834 { do_resize_fill (src, dest, rfv, n-1); }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
835
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
836 };
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
837
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
838 static void gripe_index_out_of_range (void)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
839 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
840 (*current_liboctave_error_handler)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
841 ("A(I): Index exceeds matrix dimension.");
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
842 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
843
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
844 template <class T>
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
845 Array<T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
846 Array<T>::index (const idx_vector& i) const
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
847 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
848 octave_idx_type n = numel ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
849 Array<T> retval;
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
850
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
851 if (i.is_colon ())
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
852 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
853 // 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
854 retval = Array<T> (*this, dim_vector (n, 1));
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
855 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
856 else if (i.extent (n) != n)
4548
820323598f4f [project @ 2003-10-26 03:16:42 by jwe]
jwe
parents: 4545
diff changeset
857 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
858 gripe_index_out_of_range ();
4548
820323598f4f [project @ 2003-10-26 03:16:42 by jwe]
jwe
parents: 4545
diff changeset
859 }
820323598f4f [project @ 2003-10-26 03:16:42 by jwe]
jwe
parents: 4545
diff changeset
860 else
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
861 {
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
862 // 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
863 dim_vector rd = i.orig_dimensions ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
864 octave_idx_type il = i.length (n);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
865
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
866 // FIXME -- this is for Matlab compatibility. Matlab 2007 given
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
867 //
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
868 // b = ones(3,1)
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
869 //
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
870 // yields the following:
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
871 //
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
872 // b(zeros(0,0)) gives []
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
873 // b(zeros(1,0)) gives zeros(0,1)
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
874 // b(zeros(0,1)) gives zeros(0,1)
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
875 // b(zeros(0,m)) gives zeros(0,m)
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
876 // b(zeros(m,0)) gives zeros(m,0)
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
877 // b(1:2) gives ones(2,1)
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
878 // b(ones(2)) gives ones(2) etc.
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
879 //
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
880 // 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
881 // 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
882
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
883 if (ndims () == 2 && n != 1)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
884 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
885 if (columns () == 1 && rd(0) == 1)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
886 rd = dim_vector (il, 1);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
887 else if (rows () == 1 && rd(1) == 1)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
888 rd = dim_vector (1, il);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
889 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
890
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
891 octave_idx_type l, u;
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
892 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
893 // If suitable, produce a shallow slice.
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
894 retval = Array<T> (*this, rd, l, u);
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
895 else
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
896 {
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
897 // 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
898 // types.
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
899 retval = Array<T> (rd);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
900
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
901 if (il != 0)
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
902 i.index (data (), n, retval.fortran_vec ());
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
903 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
904 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
905
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
906 return retval;
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
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
909 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
910 Array<T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
911 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
912 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
913 // Get dimensions, allowing Fortran indexing in the 2nd dim.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
914 dim_vector dv = dimensions.redim (2);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
915 octave_idx_type r = dv(0), c = dv(1);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
916 Array<T> retval;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
917
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
918 if (i.is_colon () && j.is_colon ())
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
919 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
920 // A(:,:) produces a shallow copy.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
921 retval = Array<T> (*this, dv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
922 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
923 else if (i.extent (r) != r || j.extent (c) != c)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
924 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
925 gripe_index_out_of_range ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
926 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
927 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
928 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
929 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
930
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
931 idx_vector ii (i);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
932
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
933 if (ii.maybe_reduce (r, j, c))
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
934 {
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
935 octave_idx_type l, u;
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
936 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
937 // If suitable, produce a shallow slice.
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
938 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
939 else
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
940 {
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
941 // 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
942 retval = Array<T> (dim_vector (il, jl));
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
943
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
944 ii.index (data (), n, retval.fortran_vec ());
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
945 }
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
946 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
947 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
948 {
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
949 // 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
950 retval = Array<T> (dim_vector (il, jl));
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
951
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
952 const T* src = data ();
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
953 T *dest = retval.fortran_vec ();
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
954
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
955 for (octave_idx_type k = 0; k < jl; k++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
956 dest += i.index (src + r * j.xelem (k), r, dest);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
957 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
958 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
959
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
960 return retval;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
961 }
4747
3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe]
jwe
parents: 4746
diff changeset
962
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
963 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
964 Array<T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
965 Array<T>::index (const Array<idx_vector>& ia) const
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
966 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
967 int ial = ia.length ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
968 Array<T> retval;
4587
7b957b442818 [project @ 2003-11-10 15:50:39 by jwe]
jwe
parents: 4586
diff changeset
969
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
970 // FIXME: is this dispatching necessary?
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
971 if (ial == 1)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
972 retval = index (ia(0));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
973 else if (ial == 2)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
974 retval = index (ia(0), ia(1));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
975 else if (ial > 0)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
976 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
977 // Get dimensions, allowing Fortran indexing in the last dim.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
978 dim_vector dv = dimensions.redim (ial);
4747
3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe]
jwe
parents: 4746
diff changeset
979
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
980 // Check for out of bounds conditions.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
981 bool all_colons = true, mismatch = false;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
982 for (int i = 0; i < ial; i++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
983 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
984 if (ia(i).extent (dv(i)) != dv(i))
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 mismatch = true;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
987 break;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
988 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
989 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
990 all_colons = all_colons && ia(i).is_colon ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
991 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
992
4870
2cbc6f37b0c2 [project @ 2004-04-21 17:30:51 by jwe]
jwe
parents: 4834
diff changeset
993
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
994 if (mismatch)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
995 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
996 gripe_index_out_of_range ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
997 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
998 else if (all_colons)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
999 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1000 // A(:,:,...,:) produces a shallow copy.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1001 retval = Array<T> (*this, dv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1002 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1003 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1004 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1005 // Form result dimensions.
9507
b096d11237be dim_vector improvements
Jaroslav Hajek <highegg@gmail.com>
parents: 9341
diff changeset
1006 dim_vector rdv = dim_vector::alloc (ial);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1007 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
1008 rdv.chop_trailing_singletons ();
4870
2cbc6f37b0c2 [project @ 2004-04-21 17:30:51 by jwe]
jwe
parents: 4834
diff changeset
1009
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1010 // Prepare for recursive indexing
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1011 rec_index_helper rh (dv, ia);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1012
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
1013 octave_idx_type l, u;
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
1014 if (rh.is_cont_range (l, u))
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
1015 // If suitable, produce a shallow slice.
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
1016 retval = Array<T> (*this, rdv, l, u);
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
1017 else
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
1018 {
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
1019 // 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
1020 retval = Array<T> (rdv);
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
1021
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
1022 // Do it.
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
1023 rh.index (data (), retval.fortran_vec ());
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
1024 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1025 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1026 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1027
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1028 return retval;
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1029 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1030
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1031 // FIXME -- the following is a common error message to resize,
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1032 // regardless of whether it's called from assign or elsewhere. It
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1033 // seems OK to me, but eventually the gripe can be specialized.
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1034 // Anyway, propagating various error messages into procedure is, IMHO,
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1035 // a nonsense. If anything, we should change error handling here (and
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1036 // throughout liboctave) to allow custom handling of errors
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1037 static void gripe_invalid_resize (void)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1038 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1039 (*current_liboctave_error_handler)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1040 ("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
1041 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1042
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1043 // 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
1044
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1045 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1046 T Array<T>::resize_fill_value ()
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1047 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1048 return T ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1049 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1050
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1051 // Yes, we could do resize using index & assign. However, that would
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1052 // 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
1053
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1054 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1055 void
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1056 Array<T>::resize_fill (octave_idx_type n, const T& rfv)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1057 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1058 if (n >= 0 && ndims () == 2)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1059 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1060 dim_vector dv;
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1061 // 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
1062 // on some out-of-bounds assignments. Specifically, Matlab
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1063 // 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
1064 // 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
1065 // last one, search me why). Giving a column vector would make
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1066 // much more sense (given the way trailing singleton dims are
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1067 // treated).
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1068 bool invalid = false;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1069 if (rows () == 0 || rows () == 1)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1070 dv = dim_vector (1, n);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1071 else if (columns () == 1)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1072 dv = dim_vector (n, 1);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1073 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1074 invalid = true;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1075
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1076 if (invalid)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1077 gripe_invalid_resize ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1078 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1079 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1080 octave_idx_type nx = numel ();
9100
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1081 if (n == nx - 1 && n > 0)
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1082 {
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1083 // Stack "pop" operation.
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1084 if (rep->count == 1)
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1085 slice_data[slice_len-1] = T ();
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1086 slice_len--;
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1087 dimensions = dv;
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1088 }
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1089 else if (n == nx + 1 && nx > 0)
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1090 {
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1091 // Stack "push" operation.
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1092 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
1093 {
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1094 slice_data[slice_len++] = rfv;
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1095 dimensions = dv;
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1096 }
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1097 else
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1098 {
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1099 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
1100 octave_idx_type nn = n + std::min (nx, max_stack_chunk);
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1101 Array<T> tmp (Array<T> (nn), dv, 0, n);
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1102 T *dest = tmp.fortran_vec ();
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1103
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1104 std::copy (data (), data () + nx, dest);
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1105 dest[nx] = rfv;
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1106
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1107 *this = tmp;
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1108 }
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1109 }
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1110 else if (n != nx)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1111 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1112 Array<T> tmp = Array<T> (dv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1113 T *dest = tmp.fortran_vec ();
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1114
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1115 octave_idx_type n0 = std::min (n, nx), n1 = n - n0;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1116 dest = std::copy (data (), data () + n0, dest);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1117 std::fill (dest, dest + n1, rfv);
4513
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 *this = tmp;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1120 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1121 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1122 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1123 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1124 gripe_invalid_resize ();
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1125 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1126
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1127 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1128 void
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1129 Array<T>::resize_fill (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
1130 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1131 if (r >= 0 && c >= 0 && ndims () == 2)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1132 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1133 octave_idx_type rx = rows (), cx = columns ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1134 if (r != rx || c != cx)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1135 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1136 Array<T> tmp = Array<T> (dim_vector (r, c));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1137 T *dest = tmp.fortran_vec ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1138
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1139 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
1140 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
1141 const T *src = data ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1142 if (r == rx)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1143 dest = std::copy (src, src + r * c0, dest);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1144 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1145 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1146 for (octave_idx_type k = 0; k < c0; k++)
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 dest = std::copy (src, src + r0, dest);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1149 src += rx;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1150 std::fill (dest, dest + r1, rfv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1151 dest += r1;
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 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1154
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1155 std::fill (dest, dest + r * c1, rfv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1156
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1157 *this = tmp;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1158 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1159 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1160 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1161 gripe_invalid_resize ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1162
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1163 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1164
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1165 template<class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1166 void
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1167 Array<T>::resize_fill (const dim_vector& dv, const T& rfv)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1168 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1169 int dvl = dv.length ();
8784
374cb30311a8 remove dead branch in Array.cc
Jaroslav Hajek <highegg@gmail.com>
parents: 8760
diff changeset
1170 if (dvl == 2)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1171 resize (dv(0), dv(1), rfv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1172 else if (dimensions != dv)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1173 {
8799
f6dc6eb57045 improve resize & resize on assignment
Jaroslav Hajek <highegg@gmail.com>
parents: 8784
diff changeset
1174 if (dimensions.length () <= dvl && ! dv.any_neg ())
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1175 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1176 Array<T> tmp (dv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1177 // Prepare for recursive resizing.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1178 rec_resize_helper rh (dv, dimensions.redim (dvl));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1179
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1180 // Do it.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1181 rh.resize_fill (data (), tmp.fortran_vec (), rfv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1182 *this = tmp;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1183 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1184 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1185 gripe_invalid_resize ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1186 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1187 }
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 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1190 Array<T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1191 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
1192 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1193 Array<T> tmp = *this;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1194 if (resize_ok)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1195 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1196 octave_idx_type n = numel (), nx = i.extent (n);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1197 if (n != nx)
8563
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1198 {
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1199 if (i.is_scalar ())
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1200 return Array<T> (1, rfv);
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1201 else
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1202 tmp.resize_fill (nx, rfv);
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1203 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1204
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1205 if (tmp.numel () != nx)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1206 return Array<T> ();
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1207 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1208
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1209 return tmp.index (i);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1210 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1211
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1212 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1213 Array<T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1214 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
1215 bool resize_ok, const T& rfv) const
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1216 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1217 Array<T> tmp = *this;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1218 if (resize_ok)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1219 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1220 dim_vector dv = dimensions.redim (2);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1221 octave_idx_type r = dv(0), c = dv(1);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1222 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
1223 if (r != rx || c != cx)
8563
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1224 {
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1225 if (i.is_scalar () && j.is_scalar ())
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1226 return Array<T> (1, rfv);
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1227 else
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1228 tmp.resize_fill (rx, cx, rfv);
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1229 }
4747
3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe]
jwe
parents: 4746
diff changeset
1230
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1231 if (tmp.rows () != rx || tmp.columns () != cx)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1232 return Array<T> ();
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1233 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1234
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1235 return tmp.index (i, j);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1236 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1237
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1238 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1239 Array<T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1240 Array<T>::index (const Array<idx_vector>& ia,
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1241 bool resize_ok, const T& rfv) const
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1242 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1243 Array<T> tmp = *this;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1244 if (resize_ok)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1245 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1246 int ial = ia.length ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1247 dim_vector dv = dimensions.redim (ial);
9507
b096d11237be dim_vector improvements
Jaroslav Hajek <highegg@gmail.com>
parents: 9341
diff changeset
1248 dim_vector dvx = dim_vector::alloc (ial);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1249 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
1250 if (! (dvx == dv))
8563
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1251 {
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1252 bool all_scalars = true;
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1253 for (int i = 0; i < ial; i++)
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1254 all_scalars = all_scalars && ia(i).is_scalar ();
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1255 if (all_scalars)
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1256 return Array<T> (1, rfv);
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1257 else
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1258 tmp.resize_fill (dvx, rfv);
3a3421a9f0bb optimize resizable indexing with scalars
Jaroslav Hajek <highegg@gmail.com>
parents: 8527
diff changeset
1259 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1260
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1261 if (tmp.dimensions != dvx)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1262 return Array<T> ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1263 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1264
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1265 return tmp.index (ia);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1266 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1267
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1268
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1269 static void
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1270 gripe_invalid_assignment_size (void)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1271 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1272 (*current_liboctave_error_handler)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1273 ("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
1274 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1275
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1276 static void
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1277 gripe_assignment_dimension_mismatch (void)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1278 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1279 (*current_liboctave_error_handler)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1280 ("A(I,J,...) = X: dimensions mismatch");
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1281 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1282
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1283 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1284 void
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1285 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
1286 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1287 octave_idx_type n = numel (), rhl = rhs.numel ();
4548
820323598f4f [project @ 2003-10-26 03:16:42 by jwe]
jwe
parents: 4545
diff changeset
1288
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1289 if (rhl == 1 || i.length (n) == rhl)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1290 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1291 octave_idx_type nx = i.extent (n);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1292 // Try to resize first if necessary.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1293 if (nx != n)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1294 {
8580
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1295 // Optimize case A = []; A(1:n) = X with A empty.
8390
49901b624316 optimize repmat for scalar & matrix case
Jaroslav Hajek <highegg@gmail.com>
parents: 8379
diff changeset
1296 if (rows () == 0 && columns () == 0 && ndims () == 2
8580
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1297 && i.is_colon_equiv (nx))
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1298 {
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1299 if (rhl == 1)
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1300 *this = Array<T> (dim_vector (1, nx), rhs(0));
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1301 else
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1302 *this = Array<T> (rhs, dim_vector (1, nx));
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1303 return;
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1304 }
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1305
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1306 resize_fill (nx, rfv);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1307 n = numel ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1308 }
4747
3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe]
jwe
parents: 4746
diff changeset
1309
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1310 if (i.is_colon ())
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1311 {
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1312 // 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
1313 if (rhl == 1)
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1314 fill (rhs(0));
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1315 else
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1316 *this = rhs.reshape (dimensions);
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1317 }
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1318 else
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1319 {
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1320 if (rhl == 1)
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1321 i.fill (rhs(0), n, fortran_vec ());
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1322 else
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1323 i.assign (rhs.data (), n, fortran_vec ());
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1324 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1325 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1326 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1327 gripe_invalid_assignment_size ();
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1328 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1329
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1330 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1331 void
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1332 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
1333 const Array<T>& rhs, const T& rfv)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1334 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1335 // Get RHS extents, discarding singletons.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1336 dim_vector rhdv = rhs.dims ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1337 // Get LHS extents, allowing Fortran indexing in the second dim.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1338 dim_vector dv = dimensions.redim (2);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1339 // Check for out-of-bounds and form resizing dimensions.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1340 dim_vector rdv;
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1341 // In the special when all dimensions are zero, colons are allowed
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1342 // 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
1343 // solve that elsewhere.
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1344 if (dv.all_zero ())
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1345 rdv = zero_dims_inquire (i, j, rhdv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1346 else
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 rdv(0) = i.extent (dv(0));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1349 rdv(1) = j.extent (dv(1));
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1350 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1351
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1352 bool isfill = rhs.numel () == 1;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1353 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
1354 rhdv.chop_all_singletons ();
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1355 bool match = (isfill
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1356 || (rhdv.length () == 2 && il == rhdv(0) && jl == rhdv(1)));
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1357 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
1358
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1359 if (match)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1360 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1361 // Resize if requested.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1362 if (rdv != dv)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1363 {
8580
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1364 // Optimize case A = []; A(1:m, 1:n) = X
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1365 if (dv.all_zero () && i.is_colon_equiv (rdv(0))
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1366 && j.is_colon_equiv (rdv(1)))
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1367 {
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1368 if (isfill)
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1369 *this = Array<T> (rdv, rhs(0));
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1370 else
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1371 *this = Array<T> (rhs, rdv);
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1372 return;
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1373 }
188d38a553c7 further indexing optimization touches
Jaroslav Hajek <highegg@gmail.com>
parents: 8563
diff changeset
1374
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1375 resize (rdv, rfv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1376 dv = dimensions;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1377 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1378
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1379 if (i.is_colon () && j.is_colon ())
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1380 {
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1381 // 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
1382 if (isfill)
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1383 fill (rhs(0));
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1384 else
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1385 *this = rhs.reshape (dimensions);
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1386 }
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1387 else
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1388 {
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1389 // The actual work.
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1390 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
1391 idx_vector ii (i);
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1392
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1393 const T* src = rhs.data ();
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1394 T *dest = fortran_vec ();
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1395
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1396 // Try reduction first.
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1397 if (ii.maybe_reduce (r, j, c))
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1398 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1399 if (isfill)
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1400 ii.fill (*src, n, dest);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1401 else
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1402 ii.assign (src, n, dest);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1403 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1404 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1405 {
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1406 if (isfill)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1407 {
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1408 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
1409 i.fill (*src, r, dest + r * j.xelem (k));
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1410 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1411 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1412 {
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1413 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
1414 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
1415 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1416 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1417 }
4747
3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe]
jwe
parents: 4746
diff changeset
1418 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1419 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1420 gripe_assignment_dimension_mismatch ();
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1421 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1422
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1423 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1424 void
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1425 Array<T>::assign (const Array<idx_vector>& ia,
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1426 const Array<T>& rhs, const T& rfv)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1427 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1428 int ial = ia.length ();
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1429
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1430 // FIXME: is this dispatching necessary / desirable?
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1431 if (ial == 1)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1432 assign (ia(0), rhs, rfv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1433 else if (ial == 2)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1434 assign (ia(0), ia(1), rhs, rfv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1435 else if (ial > 0)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1436 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1437 // Get RHS extents, discarding singletons.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1438 dim_vector rhdv = rhs.dims ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1439
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1440 // Get LHS extents, allowing Fortran indexing in the second dim.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1441 dim_vector dv = dimensions.redim (ial);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1442
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1443 // Get the extents forced by indexing.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1444 dim_vector rdv;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1445
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1446 // In the special when all dimensions are zero, colons are
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1447 // allowed to inquire the shape of RHS. The rules are more
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1448 // obscure, so we solve that elsewhere.
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1449 if (dv.all_zero ())
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1450 rdv = zero_dims_inquire (ia, rhdv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1451 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1452 {
9507
b096d11237be dim_vector improvements
Jaroslav Hajek <highegg@gmail.com>
parents: 9341
diff changeset
1453 rdv = dim_vector::alloc (ial);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1454 for (int i = 0; i < ial; i++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1455 rdv(i) = ia(i).extent (dv(i));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1456 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1457
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1458 // Check whether LHS and RHS match, up to singleton dims.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1459 bool match = true, all_colons = true, isfill = rhs.numel () == 1;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1460
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1461 rhdv.chop_all_singletons ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1462 int j = 0, rhdvl = rhdv.length ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1463 for (int i = 0; i < ial; i++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1464 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1465 all_colons = all_colons && ia(i).is_colon ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1466 octave_idx_type l = ia(i).length (rdv(i));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1467 if (l == 1) continue;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1468 match = match && j < rhdvl && l == rhdv(j++);
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 match = match && (j == rhdvl || rhdv(j) == 1);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1472 match = match || isfill;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1473
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1474 if (match)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1475 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1476 // Resize first if necessary.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1477 if (rdv != dv)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1478 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1479 resize_fill (rdv, rfv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1480 dv = dimensions;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1481 chop_trailing_singletons ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1482 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1483
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1484 if (all_colons)
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1485 {
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1486 // 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
1487 if (isfill)
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1488 fill (rhs(0));
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1489 else
9058
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1490 *this = rhs.reshape (dimensions);
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1491 }
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1492 else
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1493 {
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1494 // Do the actual work.
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1495
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1496 // Prepare for recursive indexing
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1497 rec_index_helper rh (dv, ia);
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1498
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1499 // Do it.
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1500 if (isfill)
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1501 rh.fill (rhs(0), fortran_vec ());
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1502 else
2da105bf2507 remove redundant checks from Array<T>::index
Jaroslav Hajek <highegg@gmail.com>
parents: 9046
diff changeset
1503 rh.assign (rhs.data (), fortran_vec ());
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1504 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1505 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1506 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1507 gripe_assignment_dimension_mismatch ();
4553
c7eb767505e9 [project @ 2003-10-27 21:39:55 by jwe]
jwe
parents: 4548
diff changeset
1508 }
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1509 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1510
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1511 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1512 void
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1513 Array<T>::delete_elements (const idx_vector& i)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1514 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1515 octave_idx_type n = numel ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1516 if (i.is_colon ())
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1517 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1518 *this = Array<T> ();
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 if (i.extent (n) != n)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1521 {
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1522 gripe_index_out_of_range ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1523 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1524 else if (i.length (n) != 0)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1525 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1526 octave_idx_type l, u;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1527 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
1528 if (i.is_scalar () && i(0) == n-1)
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1529 {
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1530 // Stack "pop" operation.
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1531 resize (n-1);
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1532 }
1a8bbfb2f7cf optimize simple stack operations on arrays
Jaroslav Hajek <highegg@gmail.com>
parents: 9058
diff changeset
1533 else if (i.is_cont_range (n, l, u))
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1534 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1535 // Special case deleting a contiguous range.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1536 octave_idx_type m = n + l - u;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1537 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
1538 const T *src = data ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1539 T *dest = tmp.fortran_vec ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1540 dest = std::copy (src, src + l, dest);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1541 dest = std::copy (src + u, src + n, dest);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1542 *this = tmp;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1543 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1544 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1545 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1546 // Use index.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1547 *this = index (i.complement (n));
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 }
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
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1552 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1553 void
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1554 Array<T>::delete_elements (int dim, const idx_vector& i)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1555 {
8302
f2e050b62199 fix dim check in Array<T>::delete_elements
Jaroslav Hajek <highegg@gmail.com>
parents: 8290
diff changeset
1556 if (dim < 0 || dim >= ndims ())
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1557 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1558 (*current_liboctave_error_handler)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1559 ("invalid dimension in delete_elements");
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1560 return;
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1561 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1562
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1563 octave_idx_type n = dimensions (dim);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1564 if (i.is_colon ())
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1565 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1566 *this = Array<T> ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1567 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1568 else if (i.extent (n) != n)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1569 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1570 gripe_index_out_of_range ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1571 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1572 else if (i.length (n) != 0)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1573 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1574 octave_idx_type l, u;
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1575
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1576 if (i.is_cont_range (n, l, u))
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1577 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1578 // Special case deleting a contiguous range.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1579 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
1580 dim_vector rdv = dimensions;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1581 rdv(dim) = nd;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1582 for (int k = 0; k < dim; k++) dl *= dimensions(k);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1583 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
1584
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1585 // Special case deleting a contiguous range.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1586 Array<T> tmp = Array<T> (rdv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1587 const T *src = data ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1588 T *dest = tmp.fortran_vec ();
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1589 l *= dl; u *= dl; n *= dl;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1590 for (octave_idx_type k = 0; k < du; k++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1591 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1592 dest = std::copy (src, src + l, dest);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1593 dest = std::copy (src + u, src + n, dest);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1594 src += n;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1595 }
4870
2cbc6f37b0c2 [project @ 2004-04-21 17:30:51 by jwe]
jwe
parents: 4834
diff changeset
1596
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1597 *this = tmp;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1598 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1599 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1600 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1601 // Use index.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1602 Array<idx_vector> ia (ndims (), idx_vector::colon);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1603 ia (dim) = i.complement (n);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1604 *this = index (ia);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1605 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1606 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1607 }
4747
3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe]
jwe
parents: 4746
diff changeset
1608
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1609 template <class T>
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1610 void
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1611 Array<T>::delete_elements (const Array<idx_vector>& ia)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1612 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1613 if (ia.length () == 1)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1614 delete_elements (ia(0));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1615 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1616 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1617 int len = ia.length (), k, dim = -1;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1618 for (k = 0; k < len; k++)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1619 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1620 if (! ia(k).is_colon ())
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1621 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1622 if (dim < 0)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1623 dim = k;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1624 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1625 break;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1626 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1627 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1628 if (dim < 0)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1629 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1630 dim_vector dv = dimensions;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1631 dv(0) = 0;
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1632 *this = Array<T> (dv);
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1633 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1634 else if (k == len)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1635 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1636 delete_elements (dim, ia(dim));
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1637 }
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1638 else
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1639 {
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1640 (*current_liboctave_error_handler)
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1641 ("A null assignment can only have one non-colon index.");
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1642 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1643 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1644
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1645 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1646
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1647 // FIXME: Remove these methods or implement them using assign.
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1648
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1649 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1650 Array<T>&
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1651 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
1652 {
4786
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1653 if (ndims () == 2 && a.ndims () == 2)
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1654 insert2 (a, r, c);
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1655 else
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1656 insertN (a, r, c);
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1657
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1658 return *this;
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1659 }
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1660
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1661
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1662 template <class T>
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1663 Array<T>&
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1664 Array<T>::insert2 (const Array<T>& a, octave_idx_type r, octave_idx_type c)
4786
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1665 {
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1666 octave_idx_type a_rows = a.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1667 octave_idx_type a_cols = a.cols ();
4786
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1668
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1669 if (r < 0 || r + a_rows > rows () || c < 0 || c + a_cols > cols ())
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1670 {
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1671 (*current_liboctave_error_handler) ("range error for insert");
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1672 return *this;
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1673 }
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1674
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1675 for (octave_idx_type j = 0; j < a_cols; j++)
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1676 for (octave_idx_type i = 0; i < a_rows; i++)
4786
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1677 elem (r+i, c+j) = a.elem (i, j);
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1678
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1679 return *this;
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1680 }
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1681
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1682 template <class T>
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1683 Array<T>&
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1684 Array<T>::insertN (const Array<T>& a, octave_idx_type r, octave_idx_type c)
4786
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe]
jwe
parents: 4765
diff changeset
1685 {
4806
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe]
jwe
parents: 4796
diff changeset
1686 dim_vector dv = dims ();
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe]
jwe
parents: 4796
diff changeset
1687
4765
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe]
jwe
parents: 4762
diff changeset
1688 dim_vector a_dv = a.dims ();
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe]
jwe
parents: 4762
diff changeset
1689
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe]
jwe
parents: 4762
diff changeset
1690 int n = a_dv.length ();
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe]
jwe
parents: 4762
diff changeset
1691
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe]
jwe
parents: 4762
diff changeset
1692 if (n == dimensions.length ())
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1693 {
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1694 Array<octave_idx_type> a_ra_idx (a_dv.length (), 0);
4765
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe]
jwe
parents: 4762
diff changeset
1695
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe]
jwe
parents: 4762
diff changeset
1696 a_ra_idx.elem (0) = r;
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe]
jwe
parents: 4762
diff changeset
1697 a_ra_idx.elem (1) = c;
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe]
jwe
parents: 4762
diff changeset
1698
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe]
jwe
parents: 4762
diff changeset
1699 for (int i = 0; i < n; i++)
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe]
jwe
parents: 4762
diff changeset
1700 {
4806
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe]
jwe
parents: 4796
diff changeset
1701 if (a_ra_idx(i) < 0 || (a_ra_idx(i) + a_dv(i)) > dv(i))
4765
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe]
jwe
parents: 4762
diff changeset
1702 {
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe]
jwe
parents: 4762
diff changeset
1703 (*current_liboctave_error_handler)
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe]
jwe
parents: 4762
diff changeset
1704 ("Array<T>::insert: range error for insert");
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe]
jwe
parents: 4762
diff changeset
1705 return *this;
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe]
jwe
parents: 4762
diff changeset
1706 }
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe]
jwe
parents: 4762
diff changeset
1707 }
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe]
jwe
parents: 4762
diff changeset
1708
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1709 octave_idx_type n_elt = a.numel ();
4806
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe]
jwe
parents: 4796
diff changeset
1710
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe]
jwe
parents: 4796
diff changeset
1711 const T *a_data = a.data ();
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe]
jwe
parents: 4796
diff changeset
1712
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1713 octave_idx_type iidx = 0;
4806
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe]
jwe
parents: 4796
diff changeset
1714
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1715 octave_idx_type a_rows = a_dv(0);
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1716
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1717 octave_idx_type this_rows = dv(0);
4806
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe]
jwe
parents: 4796
diff changeset
1718
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1719 octave_idx_type numel_page = a_dv(0) * a_dv(1);
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1720
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1721 octave_idx_type count_pages = 0;
4806
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe]
jwe
parents: 4796
diff changeset
1722
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1723 for (octave_idx_type i = 0; i < n_elt; i++)
4765
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe]
jwe
parents: 4762
diff changeset
1724 {
4806
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe]
jwe
parents: 4796
diff changeset
1725 if (i != 0 && i % a_rows == 0)
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe]
jwe
parents: 4796
diff changeset
1726 iidx += (this_rows - a_rows);
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe]
jwe
parents: 4796
diff changeset
1727
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe]
jwe
parents: 4796
diff changeset
1728 if (i % numel_page == 0)
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe]
jwe
parents: 4796
diff changeset
1729 iidx = c * dv(0) + r + dv(0) * dv(1) * count_pages++;
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe]
jwe
parents: 4796
diff changeset
1730
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe]
jwe
parents: 4796
diff changeset
1731 elem (iidx++) = a_data[i];
4765
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe]
jwe
parents: 4762
diff changeset
1732 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1733 }
4765
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe]
jwe
parents: 4762
diff changeset
1734 else
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe]
jwe
parents: 4762
diff changeset
1735 (*current_liboctave_error_handler)
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe]
jwe
parents: 4762
diff changeset
1736 ("Array<T>::insert: invalid indexing operation");
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1737
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1738 return *this;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1739 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1740
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1741 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1742 Array<T>&
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1743 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
1744 {
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1745 octave_idx_type n = ra_idx.length ();
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1746
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1747 if (n == dimensions.length ())
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1748 {
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4898
diff changeset
1749 dim_vector dva = a.dims ();
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4898
diff changeset
1750 dim_vector dv = dims ();
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4898
diff changeset
1751 int len_a = dva.length ();
5120
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1752 int non_full_dim = 0;
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1753
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1754 for (octave_idx_type i = 0; i < n; i++)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1755 {
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4898
diff changeset
1756 if (ra_idx(i) < 0 || (ra_idx(i) +
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4898
diff changeset
1757 (i < len_a ? dva(i) : 1)) > dimensions(i))
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1758 {
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1759 (*current_liboctave_error_handler)
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1760 ("Array<T>::insert: range error for insert");
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1761 return *this;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1762 }
5120
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1763
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1764 if (dv(i) != (i < len_a ? dva(i) : 1))
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1765 non_full_dim++;
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1766 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1767
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4898
diff changeset
1768 if (dva.numel ())
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4898
diff changeset
1769 {
5120
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1770 if (non_full_dim < 2)
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4898
diff changeset
1771 {
5120
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1772 // Special case for fast concatenation
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1773 const T *a_data = a.data ();
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1774 octave_idx_type numel_to_move = 1;
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1775 octave_idx_type skip = 0;
5120
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1776 for (int i = 0; i < len_a; i++)
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1777 if (ra_idx(i) == 0 && dva(i) == dv(i))
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1778 numel_to_move *= dva(i);
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1779 else
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1780 {
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1781 skip = numel_to_move * (dv(i) - dva(i));
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1782 numel_to_move *= dva(i);
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1783 break;
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1784 }
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1785
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1786 octave_idx_type jidx = ra_idx(n-1);
5120
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1787 for (int i = n-2; i >= 0; i--)
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1788 {
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1789 jidx *= dv(i);
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1790 jidx += ra_idx(i);
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1791 }
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1792
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1793 octave_idx_type iidx = 0;
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1794 octave_idx_type moves = dva.numel () / numel_to_move;
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1795 for (octave_idx_type i = 0; i < moves; i++)
5120
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1796 {
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1797 for (octave_idx_type j = 0; j < numel_to_move; j++)
5120
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1798 elem (jidx++) = a_data[iidx++];
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1799 jidx += skip;
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1800 }
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4898
diff changeset
1801 }
5120
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1802 else
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4898
diff changeset
1803 {
5120
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1804 // Generic code
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1805 const T *a_data = a.data ();
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1806 int nel = a.numel ();
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1807 Array<octave_idx_type> a_idx (n, 0);
5120
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1808
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1809 for (int i = 0; i < nel; i++)
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1810 {
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1811 int iidx = a_idx(n-1) + ra_idx(n-1);
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1812 for (int j = n-2; j >= 0; j--)
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1813 {
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1814 iidx *= dv(j);
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1815 iidx += a_idx(j) + ra_idx(j);
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1816 }
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1817
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1818 elem (iidx) = a_data[i];
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1819
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1820 increment_index (a_idx, dva);
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe]
jwe
parents: 5108
diff changeset
1821 }
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4898
diff changeset
1822 }
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4898
diff changeset
1823 }
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1824 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1825 else
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1826 (*current_liboctave_error_handler)
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1827 ("Array<T>::insert: invalid indexing operation");
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1828
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1829 return *this;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1830 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1831
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
1832
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1833 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1834 Array<T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1835 Array<T>::transpose (void) const
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1836 {
4548
820323598f4f [project @ 2003-10-26 03:16:42 by jwe]
jwe
parents: 4545
diff changeset
1837 assert (ndims () == 2);
820323598f4f [project @ 2003-10-26 03:16:42 by jwe]
jwe
parents: 4545
diff changeset
1838
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1839 octave_idx_type nr = dim1 ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1840 octave_idx_type nc = dim2 ();
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1841
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1842 if (nr >= 8 && nc >= 8)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1843 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1844 Array<T> result (dim_vector (nc, nr));
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1845
9121
bb62bc406ea7 reuse fast blocked transpose implementation from rec_permute_helper in Array<T>::transpose
Jaroslav Hajek <highegg@gmail.com>
parents: 9100
diff changeset
1846 // 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
1847
bb62bc406ea7 reuse fast blocked transpose implementation from rec_permute_helper in Array<T>::transpose
Jaroslav Hajek <highegg@gmail.com>
parents: 9100
diff changeset
1848 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
1849
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1850 return result;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1851 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1852 else if (nr > 1 && nc > 1)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1853 {
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1854 Array<T> result (dim_vector (nc, nr));
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1855
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1856 for (octave_idx_type j = 0; j < nc; j++)
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5265
diff changeset
1857 for (octave_idx_type i = 0; i < nr; i++)
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1858 result.xelem (j, i) = xelem (i, j);
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1859
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1860 return result;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1861 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1862 else
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1863 {
8333
9238637cb81c style fixes
John W. Eaton <jwe@octave.org>
parents: 8302
diff changeset
1864 // Fast transpose for vectors and empty matrices.
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1865 return Array<T> (*this, dim_vector (nc, nr));
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1866 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1867 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1868
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1869 template <class T>
8028
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1870 static T
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1871 no_op_fcn (const T& x)
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1872 {
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1873 return x;
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1874 }
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1875
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1876 template <class T>
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1877 Array<T>
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1878 Array<T>::hermitian (T (*fcn) (const T&)) const
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1879 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1880 assert (ndims () == 2);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1881
8028
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1882 if (! fcn)
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1883 fcn = no_op_fcn<T>;
f0fbf47c914c avoid null pointer call in Array<T>::hermitian
Jaroslav Hajek <highegg@gmail.com>
parents: 7796
diff changeset
1884
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1885 octave_idx_type nr = dim1 ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1886 octave_idx_type nc = dim2 ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1887
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1888 if (nr >= 8 && nc >= 8)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1889 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1890 Array<T> result (dim_vector (nc, nr));
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1891
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1892 // Blocked transpose to attempt to avoid cache misses.
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1893
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1894 // 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
1895 // on some compilers.
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1896 T buf[64];
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1897
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1898 octave_idx_type ii = 0, jj;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1899 for (jj = 0; jj < (nc - 8 + 1); jj += 8)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1900 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1901 for (ii = 0; ii < (nr - 8 + 1); ii += 8)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1902 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1903 // Copy to buffer
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1904 for (octave_idx_type j = jj, k = 0, idxj = jj * nr;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1905 j < jj + 8; j++, idxj += nr)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1906 for (octave_idx_type i = ii; i < ii + 8; i++)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1907 buf[k++] = xelem (i + idxj);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1908
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1909 // Copy from buffer
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1910 for (octave_idx_type i = ii, idxi = ii * nc; i < ii + 8;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1911 i++, idxi += nc)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1912 for (octave_idx_type j = jj, k = i - ii; j < jj + 8;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1913 j++, k+=8)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1914 result.xelem (j + idxi) = fcn (buf[k]);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1915 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1916
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1917 if (ii < nr)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1918 for (octave_idx_type j = jj; j < jj + 8; j++)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1919 for (octave_idx_type i = ii; i < nr; i++)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1920 result.xelem (j, i) = fcn (xelem (i, j));
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1921 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1922
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1923 for (octave_idx_type j = jj; j < nc; j++)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1924 for (octave_idx_type i = 0; i < nr; i++)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1925 result.xelem (j, i) = fcn (xelem (i, j));
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1926
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1927 return result;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1928 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1929 else
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1930 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1931 Array<T> result (dim_vector (nc, nr));
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1932
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1933 for (octave_idx_type j = 0; j < nc; j++)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1934 for (octave_idx_type i = 0; i < nr; i++)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1935 result.xelem (j, i) = fcn (xelem (i, j));
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1936
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1937 return result;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1938 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1939 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1940
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1941 /*
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1942
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1943 %% 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
1944 %% and with four tiles.
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1945
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1946 %!shared m7, mt7, m8, mt8, m9, mt9
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1947 %! 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
1948 %! 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
1949 %! 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
1950 %! mt8 = mt8 = [mt7; 57:64];
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1951 %! 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
1952 %! mt9 = [mt8; 65:72];
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1953
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1954 %!assert(m7', mt7)
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1955 %!assert((1i*m7).', 1i * mt7)
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1956 %!assert((1i*m7)', conj (1i * mt7))
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1957 %!assert(m8', mt8)
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1958 %!assert((1i*m8).', 1i * mt8)
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1959 %!assert((1i*m8)', conj (1i * mt8))
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1960 %!assert(m9', mt9)
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1961 %!assert((1i*m9).', 1i * mt9)
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1962 %!assert((1i*m9)', conj (1i * mt9))
762801c50b21 Fix tests for transpose in Array.cc
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
1963 %!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
1964 %!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
1965 %!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
1966 %!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
1967 %!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
1968 %!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
1969 %!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
1970 %!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
1971 %!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
1972
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1973 */
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1974
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7717
diff changeset
1975 template <class T>
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1976 T *
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1977 Array<T>::fortran_vec (void)
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1978 {
6881
cd2c6a69a70d [project @ 2007-09-07 21:48:09 by jwe]
jwe
parents: 6867
diff changeset
1979 make_unique ();
cd2c6a69a70d [project @ 2007-09-07 21:48:09 by jwe]
jwe
parents: 6867
diff changeset
1980
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
1981 return slice_data;
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1982 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1983
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
1984 template <class T>
3933
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3657
diff changeset
1985 void
4517
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
1986 Array<T>::maybe_delete_dims (void)
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
1987 {
4587
7b957b442818 [project @ 2003-11-10 15:50:39 by jwe]
jwe
parents: 4586
diff changeset
1988 int nd = dimensions.length ();
4517
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
1989
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
1990 dim_vector new_dims (1, 1);
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
1991
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
1992 bool delete_dims = true;
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
1993
4587
7b957b442818 [project @ 2003-11-10 15:50:39 by jwe]
jwe
parents: 4586
diff changeset
1994 for (int i = nd - 1; i >= 0; i--)
4517
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
1995 {
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
1996 if (delete_dims)
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
1997 {
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
1998 if (dimensions(i) != 1)
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
1999 {
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
2000 delete_dims = false;
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
2001
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
2002 new_dims = dim_vector (i + 1, dimensions(i));
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
2003 }
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
2004 }
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
2005 else
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
2006 new_dims(i) = dimensions(i);
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
2007 }
4530
e8d87fefd144 [project @ 2003-10-07 04:02:04 by jwe]
jwe
parents: 4518
diff changeset
2008
4587
7b957b442818 [project @ 2003-11-10 15:50:39 by jwe]
jwe
parents: 4586
diff changeset
2009 if (nd != new_dims.length ())
4517
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
2010 dimensions = new_dims;
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
2011 }
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
2012
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2013 // Non-real types don't have NaNs.
4517
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
2014 template <class T>
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
2015 inline bool
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
2016 sort_isnan (typename ref_param<T>::type)
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2017 {
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2018 return false;
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2019 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2020
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2021 template <class T>
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2022 Array<T>
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2023 Array<T>::sort (octave_idx_type dim, sortmode mode) const
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2024 {
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2025 if (dim < 0 || dim >= ndims ())
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2026 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2027 (*current_liboctave_error_handler)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2028 ("sort: invalid dimension");
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2029 return Array<T> ();
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2030 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2031
8651
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
2032 Array<T> m (dims ());
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2033
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2034 dim_vector dv = m.dims ();
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2035
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2036 if (m.length () < 1)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2037 return m;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2038
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2039 octave_idx_type ns = dv(dim);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2040 octave_idx_type iter = dv.numel () / ns;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2041 octave_idx_type stride = 1;
8505
124dd27bedae Array.cc: style fixes
John W. Eaton <jwe@octave.org>
parents: 8410
diff changeset
2042
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2043 for (int i = 0; i < dim; i++)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2044 stride *= dv(i);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2045
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2046 T *v = m.fortran_vec ();
8651
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
2047 const T *ov = data ();
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
2048
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2049 octave_sort<T> lsort;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2050
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2051 if (mode)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2052 lsort.set_compare (mode);
7463
2467639bd8c0 eliminate UNDEFINED sort mode
John W. Eaton <jwe@octave.org>
parents: 7443
diff changeset
2053 else
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2054 return m;
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2055
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2056 if (stride == 1)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2057 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2058 for (octave_idx_type j = 0; j < iter; j++)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2059 {
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2060 // copy and partition out NaNs.
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2061 // FIXME: impact on integer types noticeable?
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2062 octave_idx_type kl = 0, ku = ns;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2063 for (octave_idx_type i = 0; i < ns; i++)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2064 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2065 T tmp = ov[i];
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
2066 if (sort_isnan<T> (tmp))
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2067 v[--ku] = tmp;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2068 else
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2069 v[kl++] = tmp;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2070 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2071
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2072 // sort.
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2073 lsort.sort (v, kl);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2074
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2075 if (ku < ns)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2076 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2077 // NaNs are in reverse order
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2078 std::reverse (v + ku, v + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2079 if (mode == DESCENDING)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2080 std::rotate (v, v + ku, v + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2081 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2082
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2083 v += ns;
8651
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
2084 ov += ns;
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2085 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2086 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2087 else
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2088 {
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2089 OCTAVE_LOCAL_BUFFER (T, buf, ns);
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2090
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2091 for (octave_idx_type j = 0; j < iter; j++)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2092 {
8505
124dd27bedae Array.cc: style fixes
John W. Eaton <jwe@octave.org>
parents: 8410
diff changeset
2093 octave_idx_type offset = j;
124dd27bedae Array.cc: style fixes
John W. Eaton <jwe@octave.org>
parents: 8410
diff changeset
2094 octave_idx_type offset2 = 0;
124dd27bedae Array.cc: style fixes
John W. Eaton <jwe@octave.org>
parents: 8410
diff changeset
2095
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2096 while (offset >= stride)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2097 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2098 offset -= stride;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2099 offset2++;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2100 }
8505
124dd27bedae Array.cc: style fixes
John W. Eaton <jwe@octave.org>
parents: 8410
diff changeset
2101
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2102 offset += offset2 * stride * ns;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2103
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2104 // gather and partition out NaNs.
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2105 // FIXME: impact on integer types noticeable?
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2106 octave_idx_type kl = 0, ku = ns;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2107 for (octave_idx_type i = 0; i < ns; i++)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2108 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2109 T tmp = ov[i*stride + offset];
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
2110 if (sort_isnan<T> (tmp))
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2111 buf[--ku] = tmp;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2112 else
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2113 buf[kl++] = tmp;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2114 }
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2115
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2116 // sort.
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2117 lsort.sort (buf, kl);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2118
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2119 if (ku < ns)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2120 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2121 // NaNs are in reverse order
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2122 std::reverse (buf + ku, buf + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2123 if (mode == DESCENDING)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2124 std::rotate (buf, buf + ku, buf + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2125 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2126
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2127 // scatter.
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2128 for (octave_idx_type i = 0; i < ns; i++)
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2129 v[i*stride + offset] = buf[i];
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2130 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2131 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2132
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2133 return m;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2134 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2135
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2136 template <class T>
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2137 Array<T>
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2138 Array<T>::sort (Array<octave_idx_type> &sidx, octave_idx_type dim,
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2139 sortmode mode) const
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2140 {
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2141 if (dim < 0 || dim >= ndims ())
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2142 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2143 (*current_liboctave_error_handler)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2144 ("sort: invalid dimension");
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2145 return Array<T> ();
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
8651
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
2148 Array<T> m (dims ());
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2149
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2150 dim_vector dv = m.dims ();
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2151
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2152 if (m.length () < 1)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2153 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2154 sidx = Array<octave_idx_type> (dv);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2155 return m;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2156 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2157
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2158 octave_idx_type ns = dv(dim);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2159 octave_idx_type iter = dv.numel () / ns;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2160 octave_idx_type stride = 1;
8505
124dd27bedae Array.cc: style fixes
John W. Eaton <jwe@octave.org>
parents: 8410
diff changeset
2161
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2162 for (int i = 0; i < dim; i++)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2163 stride *= dv(i);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2164
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2165 T *v = m.fortran_vec ();
8651
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
2166 const T *ov = data ();
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
2167
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2168 octave_sort<T> lsort;
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2169
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2170 sidx = Array<octave_idx_type> (dv);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2171 octave_idx_type *vi = sidx.fortran_vec ();
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2172
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2173 if (mode)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2174 lsort.set_compare (mode);
7463
2467639bd8c0 eliminate UNDEFINED sort mode
John W. Eaton <jwe@octave.org>
parents: 7443
diff changeset
2175 else
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2176 return m;
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2177
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2178 if (stride == 1)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2179 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2180 for (octave_idx_type j = 0; j < iter; j++)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2181 {
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2182 // copy and partition out NaNs.
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2183 // FIXME: impact on integer types noticeable?
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2184 octave_idx_type kl = 0, ku = ns;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2185 for (octave_idx_type i = 0; i < ns; i++)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2186 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2187 T tmp = ov[i];
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
2188 if (sort_isnan<T> (tmp))
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2189 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2190 --ku;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2191 v[ku] = tmp;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2192 vi[ku] = i;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2193 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2194 else
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2195 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2196 v[kl] = tmp;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2197 vi[kl] = i;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2198 kl++;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2199 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2200 }
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2201
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2202 // sort.
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2203 lsort.sort (v, vi, kl);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2204
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2205 if (ku < ns)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2206 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2207 // NaNs are in reverse order
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2208 std::reverse (v + ku, v + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2209 std::reverse (vi + ku, vi + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2210 if (mode == DESCENDING)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2211 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2212 std::rotate (v, v + ku, v + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2213 std::rotate (vi, vi + ku, vi + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2214 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2215 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2216
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2217 v += ns;
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2218 vi += ns;
8651
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
2219 ov += ns;
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2220 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2221 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2222 else
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2223 {
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2224 OCTAVE_LOCAL_BUFFER (T, buf, ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2225 OCTAVE_LOCAL_BUFFER (octave_idx_type, bufi, ns);
8651
ea8e65ca234f reduce memory usage in sorting
Jaroslav Hajek <highegg@gmail.com>
parents: 8580
diff changeset
2226
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2227 for (octave_idx_type j = 0; j < iter; j++)
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2228 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2229 octave_idx_type offset = j;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2230 octave_idx_type offset2 = 0;
8505
124dd27bedae Array.cc: style fixes
John W. Eaton <jwe@octave.org>
parents: 8410
diff changeset
2231
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2232 while (offset >= stride)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2233 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2234 offset -= stride;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2235 offset2++;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2236 }
8505
124dd27bedae Array.cc: style fixes
John W. Eaton <jwe@octave.org>
parents: 8410
diff changeset
2237
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2238 offset += offset2 * stride * ns;
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2239
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2240 // gather and partition out NaNs.
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2241 // FIXME: impact on integer types noticeable?
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2242 octave_idx_type kl = 0, ku = ns;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2243 for (octave_idx_type i = 0; i < ns; i++)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2244 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2245 T tmp = ov[i*stride + offset];
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
2246 if (sort_isnan<T> (tmp))
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2247 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2248 --ku;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2249 buf[ku] = tmp;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2250 bufi[ku] = i;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2251 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2252 else
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2253 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2254 buf[kl] = tmp;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2255 bufi[kl] = i;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2256 kl++;
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2257 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2258 }
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2259
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2260 // sort.
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2261 lsort.sort (buf, bufi, kl);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2262
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2263 if (ku < ns)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2264 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2265 // NaNs are in reverse order
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2266 std::reverse (buf + ku, buf + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2267 std::reverse (bufi + ku, bufi + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2268 if (mode == DESCENDING)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2269 {
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2270 std::rotate (buf, buf + ku, buf + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2271 std::rotate (bufi, bufi + ku, bufi + ns);
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2272 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2273 }
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2274
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2275 // scatter.
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2276 for (octave_idx_type i = 0; i < ns; i++)
8700
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2277 v[i*stride + offset] = buf[i];
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2278 for (octave_idx_type i = 0; i < ns; i++)
314be237cd5b sorting optimizations
Jaroslav Hajek <highegg@gmail.com>
parents: 8651
diff changeset
2279 vi[i*stride + offset] = bufi[i];
7433
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2280 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2281 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2282
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2283 return m;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2284 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman]
dbateman
parents: 7321
diff changeset
2285
7620
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2286 template <class T>
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2287 sortmode
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2288 Array<T>::is_sorted (sortmode mode) const
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2289 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2290 if (nelem () <= 1)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2291 return ASCENDING;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2292
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2293 const T *lo = data (), *hi = data () + nelem () - 1;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2294
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2295 // Check for NaNs at the beginning and end.
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
2296 if (mode != ASCENDING && sort_isnan<T> (*lo))
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2297 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2298 mode = DESCENDING;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2299 do
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2300 ++lo;
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
2301 while (lo < hi && sort_isnan<T> (*lo));
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2302 }
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
2303 else if (mode != DESCENDING && sort_isnan<T> (*hi))
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2304 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2305 mode = ASCENDING;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2306 do
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2307 --hi;
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
2308 while (lo < hi && sort_isnan<T> (*hi));
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2309 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2310
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2311 octave_sort<T> lsort;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2312
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2313 // If mode is still unknown, compare lo and hi
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2314 if (! mode)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2315 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2316 if (lsort.descending_compare (*lo, *hi))
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2317 mode = DESCENDING;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2318 else if (lsort.ascending_compare (*lo, *hi))
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2319 mode = ASCENDING;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2320 else
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2321 mode = ASCENDING;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2322 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2323
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2324 lsort.set_compare (mode);
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2325
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2326 if (! lsort.is_sorted (lo, hi - lo + 1))
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2327 mode = UNSORTED;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2328
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2329 return mode;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2330 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2331
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2332 template <class T>
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
2333 typename Array<T>::compare_fcn_type
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
2334 sortrows_comparator (sortmode mode, const Array<T>& /* a */,
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
2335 bool /* allow_chk */)
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2336 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2337 if (mode == ASCENDING)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2338 return octave_sort<T>::ascending_compare;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2339 else if (mode == DESCENDING)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2340 return octave_sort<T>::descending_compare;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2341 else
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2342 return 0;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2343 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2344
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2345 template <class T>
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2346 Array<octave_idx_type>
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2347 Array<T>::sort_rows_idx (sortmode mode) const
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2348 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2349 Array<octave_idx_type> idx;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2350
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2351 octave_sort<T> lsort;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2352
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
2353 lsort.set_compare (sortrows_comparator (mode, *this, true));
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2354
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2355 octave_idx_type r = rows (), c = cols ();
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2356
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2357 idx = Array<octave_idx_type> (r);
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2358
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2359 lsort.sort_rows (data (), idx.fortran_vec (), r, c);
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2360
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2361 return idx;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2362 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2363
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2364
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2365 template <class T>
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2366 sortmode
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2367 Array<T>::is_sorted_rows (sortmode mode) const
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2368 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2369 octave_sort<T> lsort;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2370
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2371 octave_idx_type r = rows (), c = cols ();
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2372
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2373 if (r <= 1 || c == 0)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2374 return mode ? mode : ASCENDING;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2375
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2376 if (! mode)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2377 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2378 // Auto-detect mode.
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
2379 compare_fcn_type compare
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
2380 = sortrows_comparator (ASCENDING, *this, false);
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2381
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2382 octave_idx_type i;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2383 for (i = 0; i < cols (); i++)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2384 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2385 T l = elem (0, i), u = elem (rows () - 1, i);
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2386 if (compare (l, u))
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2387 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2388 if (mode == DESCENDING)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2389 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2390 mode = UNSORTED;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2391 break;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2392 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2393 else
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2394 mode = ASCENDING;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2395 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2396 else if (compare (u, l))
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2397 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2398 if (mode == ASCENDING)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2399 {
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2400 mode = UNSORTED;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2401 break;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2402 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2403 else
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2404 mode = DESCENDING;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2405 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2406 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2407 if (! mode && i == cols ())
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2408 mode = ASCENDING;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2409 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2410
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2411 if (mode)
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2412 {
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
2413 lsort.set_compare (sortrows_comparator (mode, *this, false));
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2414
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2415 if (! lsort.is_sorted_rows (data (), r, c))
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2416 mode = UNSORTED;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2417 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2418
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2419 return mode;
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2420
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2421 }
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2422
8814
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2423 // Do a binary lookup in a sorted array.
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2424 template <class T>
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2425 octave_idx_type
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2426 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
2427 {
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2428 octave_idx_type n = numel ();
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2429 octave_sort<T> lsort;
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2430
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2431 if (mode == UNSORTED)
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2432 {
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2433 // auto-detect mode
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2434 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
2435 mode = DESCENDING;
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2436 else
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2437 mode = ASCENDING;
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2438 }
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2439
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2440 lsort.set_compare (mode);
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2441
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2442 return lsort.lookup (data (), n, value);
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2443 }
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2444
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2445 // Ditto, but for an array of values, specializing on long runs.
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2446 // Adds optional offset to all indices.
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2447 template <class T>
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2448 Array<octave_idx_type>
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2449 Array<T>::lookup (const Array<T>& values, sortmode mode,
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2450 bool linf, bool rinf) const
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2451 {
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2452 octave_idx_type n = numel ();
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2453 octave_sort<T> lsort;
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2454 Array<octave_idx_type> idx (values.dims ());
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2455
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2456 if (mode == UNSORTED)
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2457 {
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2458 // auto-detect mode
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2459 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
2460 mode = DESCENDING;
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2461 else
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2462 mode = ASCENDING;
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2463 }
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2464
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2465 lsort.set_compare (mode);
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2466
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2467 // set offset and shift size.
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2468 octave_idx_type offset = 0;
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2469
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2470 if (linf && n > 0)
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2471 {
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2472 offset++;
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2473 n--;
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2474 }
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2475 if (rinf && n > 0)
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2476 n--;
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2477
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2478 lsort.lookup (data () + offset, n, values.data (), values.numel (),
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2479 idx.fortran_vec (), offset);
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2480
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2481 return idx;
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2482 }
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2483
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2484 template <class T>
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2485 Array<octave_idx_type>
9341
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2486 Array<T>::lookupm (const Array<T>& values, sortmode mode) const
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2487 {
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2488 octave_idx_type n = numel ();
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2489 octave_sort<T> lsort;
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2490 Array<octave_idx_type> idx (values.dims ());
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2491
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2492 if (mode == UNSORTED)
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2493 {
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2494 // auto-detect mode
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2495 if (n > 1 && lsort.descending_compare (elem (0), elem (n-1)))
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2496 mode = DESCENDING;
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2497 else
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2498 mode = ASCENDING;
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2499 }
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2500
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2501 lsort.set_compare (mode);
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2502
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2503 lsort.lookupm (data (), n, values.data (), values.numel (),
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2504 idx.fortran_vec ());
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2505
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2506 return idx;
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2507 }
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2508
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2509 template <class T>
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2510 Array<bool>
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2511 Array<T>::lookupb (const Array<T>& values, sortmode mode) const
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2512 {
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2513 octave_idx_type n = numel ();
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2514 octave_sort<T> lsort;
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2515 Array<bool> match (values.dims ());
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2516
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2517 if (mode == UNSORTED)
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2518 {
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2519 // auto-detect mode
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2520 if (n > 1 && lsort.descending_compare (elem (0), elem (n-1)))
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2521 mode = DESCENDING;
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2522 else
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2523 mode = ASCENDING;
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2524 }
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2525
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2526 lsort.set_compare (mode);
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2527
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2528 lsort.lookupb (data (), n, values.data (), values.numel (),
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2529 match.fortran_vec ());
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2530
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2531 return match;
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2532 }
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2533
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2534 template <class T>
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2535 Array<octave_idx_type>
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2536 Array<T>::find (octave_idx_type n, bool backward) const
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2537 {
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2538 Array<octave_idx_type> retval;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2539 const T *src = data ();
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2540 octave_idx_type nel = nelem ();
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2541 const T zero = T ();
9310
256c0db275b6 fix behavior of find
Jaroslav Hajek <highegg@gmail.com>
parents: 9237
diff changeset
2542 if (n < 0 || n >= nel)
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2543 {
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2544 // 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
2545 // 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
2546 octave_idx_type cnt = 0;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2547 for (octave_idx_type i = 0; i < nel; i++)
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2548 cnt += src[i] != zero;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2549
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2550 retval = Array<octave_idx_type> (cnt);
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2551 octave_idx_type *dest = retval.fortran_vec ();
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2552 for (octave_idx_type i = 0; i < nel; i++)
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2553 if (src[i] != zero) *dest++ = i;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2554 }
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2555 else
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2556 {
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2557 // 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
2558 // optimistic, alloc the array in advance, and then resize if
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2559 // needed.
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2560 retval = Array<octave_idx_type> (n);
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2561 if (backward)
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2562 {
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2563 // 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
2564 octave_idx_type k = 0, l = nel - 1;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2565 for (; k < n; k++)
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2566 {
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2567 for (;l >= 0 && src[l] == zero; l--) ;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2568 if (l >= 0)
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2569 retval(k) = l--;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2570 else
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2571 break;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2572 }
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2573 if (k < n)
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2574 retval.resize (k);
9310
256c0db275b6 fix behavior of find
Jaroslav Hajek <highegg@gmail.com>
parents: 9237
diff changeset
2575 octave_idx_type *rdata = retval.fortran_vec ();
256c0db275b6 fix behavior of find
Jaroslav Hajek <highegg@gmail.com>
parents: 9237
diff changeset
2576 std::reverse (rdata, rdata + k);
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2577 }
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2578 else
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2579 {
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2580 // 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
2581 octave_idx_type k = 0, l = 0;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2582 for (; k < n; k++)
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2583 {
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2584 for (;l != nel && src[l] == zero; l++) ;
9029
2df28ad88b0e small fix in Array::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9025
diff changeset
2585 if (l != nel)
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2586 retval(k) = l++;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2587 else
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2588 break;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2589 }
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2590 if (k < n)
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2591 retval.resize (k);
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2592 }
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2593 }
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2594
9046
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2595 // Fixup return dimensions, for Matlab compatibility.
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2596 // 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
2597 // 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
2598 // 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
2599 // 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
2600 // 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
2601 // 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
2602 // 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
2603
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2604 if ((numel () == 1 && retval.is_empty ())
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2605 || (rows () == 0 && dims ().numel (1) == 0))
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2606 retval.dimensions = dim_vector ();
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2607 else if (rows () == 1 && ndims () == 2)
88bf56bbccca make Array::find already return Matlab-compatible dimensions
Jaroslav Hajek <highegg@gmail.com>
parents: 9029
diff changeset
2608 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
2609
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2610 return retval;
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2611 }
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2612
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2613
9237
3c1762c7e787 Add missing xxx_API decoration and remove misplaced ones
Michael Goffioul <michael.goffioul@gmail.com>
parents: 9222
diff changeset
2614 #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
2615
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2616 #define NO_INSTANTIATE_ARRAY_SORT(T) \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2617 \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2618 template <> Array<T> \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2619 Array<T>::sort (octave_idx_type, sortmode) const { return *this; } \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2620 \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2621 template <> Array<T> \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2622 Array<T>::sort (Array<octave_idx_type> &sidx, octave_idx_type, sortmode) const \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2623 { sidx = Array<octave_idx_type> (); return *this; } \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2624 \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2625 template <> sortmode \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2626 Array<T>::is_sorted (sortmode) const \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2627 { return UNSORTED; } \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2628 \
8725
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
2629 Array<T>::compare_fcn_type \
d5af326a3ede [mq]: sort-traits
John W. Eaton <jwe@octave.org>
parents: 8721
diff changeset
2630 sortrows_comparator (sortmode, const Array<T>&, bool) \
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2631 { return 0; } \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2632 \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2633 template <> Array<octave_idx_type> \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2634 Array<T>::sort_rows_idx (sortmode) const \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2635 { return Array<octave_idx_type> (); } \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2636 \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2637 template <> sortmode \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2638 Array<T>::is_sorted_rows (sortmode) const \
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2639 { return UNSORTED; } \
8814
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2640 \
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2641 template <> octave_idx_type \
9222
7bd406e12e4d instantiate Array<void *> in liboctave
Jaroslav Hajek <highegg@gmail.com>
parents: 9201
diff changeset
2642 Array<T>::lookup (T const &, sortmode) const \
8814
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2643 { return 0; } \
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2644 template <> Array<octave_idx_type> \
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2645 Array<T>::lookup (const Array<T>&, sortmode, bool, bool) const \
de16ebeef93d improve lookup, provide Array<T>::lookup
Jaroslav Hajek <highegg@gmail.com>
parents: 8799
diff changeset
2646 { return Array<octave_idx_type> (); } \
9341
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2647 template <> Array<octave_idx_type> \
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2648 Array<T>::lookupm (const Array<T>&, sortmode) const \
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2649 { return Array<octave_idx_type> (); } \
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2650 template <> Array<bool> \
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2651 Array<T>::lookupb (const Array<T>&, sortmode) const \
9fd5c56ce57a extend lookup capabilities
Jaroslav Hajek <highegg@gmail.com>
parents: 9310
diff changeset
2652 { return Array<bool> (); } \
9025
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2653 template <> Array<octave_idx_type> \
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2654 Array<T>::find (octave_idx_type, bool) const\
484756d558d6 add Array<T>::find
Jaroslav Hajek <highegg@gmail.com>
parents: 9012
diff changeset
2655 { return Array<octave_idx_type> (); } \
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2656
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2657
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2658 template <class T>
7620
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2659 Array<T>
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2660 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
2661 {
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2662 dim_vector dv = dims ();
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2663 octave_idx_type nd = dv.length ();
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2664 Array<T> d;
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2665
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2666 if (nd > 2)
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2667 (*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
2668 else
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2669 {
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2670 octave_idx_type nnr = dv (0);
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2671 octave_idx_type nnc = dv (1);
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2672
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2673 if (nnr == 0 || nnc == 0)
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2674 ; // do nothing
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2675 else if (nnr != 1 && nnc != 1)
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2676 {
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2677 if (k > 0)
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2678 nnc -= k;
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2679 else if (k < 0)
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2680 nnr += k;
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2681
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2682 if (nnr > 0 && nnc > 0)
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2683 {
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2684 octave_idx_type ndiag = (nnr < nnc) ? nnr : nnc;
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2685
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2686 d.resize (dim_vector (ndiag, 1));
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2687
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2688 if (k > 0)
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2689 {
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2690 for (octave_idx_type i = 0; i < ndiag; i++)
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2691 d.xelem (i) = elem (i, i+k);
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2692 }
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2693 else if (k < 0)
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2694 {
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2695 for (octave_idx_type i = 0; i < ndiag; i++)
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2696 d.xelem (i) = elem (i-k, i);
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2697 }
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2698 else
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2699 {
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2700 for (octave_idx_type i = 0; i < ndiag; i++)
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2701 d.xelem (i) = elem (i, i);
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2702 }
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2703 }
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2704 else
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2705 (*current_liboctave_error_handler)
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2706 ("diag: requested diagonal out of range");
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2707 }
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2708 else if (nnr != 0 && nnc != 0)
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2709 {
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2710 octave_idx_type roff = 0;
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2711 octave_idx_type coff = 0;
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2712 if (k > 0)
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2713 {
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2714 roff = 0;
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2715 coff = k;
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2716 }
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2717 else if (k < 0)
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2718 {
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2719 roff = -k;
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2720 coff = 0;
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2721 }
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2722
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2723 if (nnr == 1)
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2724 {
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2725 octave_idx_type n = nnc + std::abs (k);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
2726 d = Array<T> (dim_vector (n, n), resize_fill_value ());
7620
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2727
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2728 for (octave_idx_type i = 0; i < nnc; i++)
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2729 d.xelem (i+roff, i+coff) = elem (0, i);
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2730 }
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2731 else
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2732 {
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2733 octave_idx_type n = nnr + std::abs (k);
8290
7cbe01c21986 improve dense array indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8179
diff changeset
2734 d = Array<T> (dim_vector (n, n), resize_fill_value ());
7620
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2735
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2736 for (octave_idx_type i = 0; i < nnr; i++)
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2737 d.xelem (i+roff, i+coff) = elem (i, 0);
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2738 }
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2739 }
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2740 }
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2741
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2742 return d;
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2743 }
36594d5bbe13 Move diag function into the octave_value class
David Bateman <dbateman@free.fr>
parents: 7605
diff changeset
2744
4517
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
2745 template <class T>
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe]
jwe
parents: 4513
diff changeset
2746 void
3933
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3657
diff changeset
2747 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
2748 {
8523
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
2749 os << prefix << "rep address: " << rep << '\n'
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
2750 << prefix << "rep->len: " << rep->len << '\n'
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
2751 << 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
2752 << prefix << "rep->count: " << rep->count << '\n'
ad3afaaa19c1 implement non-copying contiguous range indexing
Jaroslav Hajek <highegg@gmail.com>
parents: 8505
diff changeset
2753 << 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
2754 << prefix << "slice_len: " << slice_len << '\n';
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
2755
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
2756 // 2D info:
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
2757 //
4657
a585a2dfca6c [project @ 2003-11-25 01:30:09 by jwe]
jwe
parents: 4656
diff changeset
2758 // << pefix << "rows: " << rows () << "\n"
4513
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe]
jwe
parents: 4192
diff changeset
2759 // << prefix << "cols: " << cols () << "\n";
3933
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3657
diff changeset
2760 }
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3657
diff changeset
2761
9201
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2762 template <class T>
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2763 void Array<T>::instantiation_guard ()
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2764 {
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2765 // This guards against accidental implicit instantiations.
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2766 // 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
2767 T::__xXxXx__();
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2768 }
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2769
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2770 #define INSTANTIATE_ARRAY(T, API) \
9201
472f0e22aa60 guard against implicit instantiation
Jaroslav Hajek <highegg@gmail.com>
parents: 9121
diff changeset
2771 template <> void Array<T>::instantiation_guard () { } \
8721
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2772 template class API Array<T>
e9cb742df9eb imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents: 8700
diff changeset
2773
237
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe]
jwe
parents:
diff changeset
2774 /*
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe]
jwe
parents:
diff changeset
2775 ;;; Local Variables: ***
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe]
jwe
parents:
diff changeset
2776 ;;; mode: C++ ***
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe]
jwe
parents:
diff changeset
2777 ;;; End: ***
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe]
jwe
parents:
diff changeset
2778 */