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1 /* |
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2 |
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3 Copyright (C) 1996, 1997 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #ifdef HAVE_CONFIG_H |
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24 #include <config.h> |
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25 #endif |
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26 |
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27 #include <climits> |
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28 |
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29 #include <iostream> |
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30 #include <vector> |
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31 |
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32 #include "data-conv.h" |
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33 #include "lo-ieee.h" |
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34 #include "lo-utils.h" |
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35 #include "mach-info.h" |
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36 #include "mx-base.h" |
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37 #include "quit.h" |
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38 |
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39 #include "defun.h" |
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40 #include "gripes.h" |
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41 #include "oct-obj.h" |
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42 #include "oct-lvalue.h" |
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43 #include "oct-stream.h" |
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44 #include "ops.h" |
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45 #include "ov-base.h" |
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46 #include "ov-base-mat.h" |
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47 #include "ov-base-mat.cc" |
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48 #include "ov-scalar.h" |
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49 #include "ov-re-mat.h" |
4901
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50 #include "ov-type-conv.h" |
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51 #include "pr-output.h" |
2948
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52 #include "variables.h" |
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53 |
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54 #include "byte-swap.h" |
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55 #include "ls-oct-ascii.h" |
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56 #include "ls-utils.h" |
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57 #include "ls-hdf5.h" |
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58 |
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59 #if ! defined (UCHAR_MAX) |
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60 #define UCHAR_MAX 255 |
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61 #endif |
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62 |
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63 template class octave_base_matrix<NDArray>; |
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64 |
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65 DEFINE_OCTAVE_ALLOCATOR (octave_matrix); |
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66 |
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67 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_matrix, "matrix", "double"); |
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68 |
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69 octave_value * |
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70 octave_matrix::try_narrowing_conversion (void) |
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71 { |
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72 octave_value *retval = 0; |
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73 |
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74 if (matrix.nelem () == 1) |
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75 retval = new octave_scalar (matrix (0)); |
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76 |
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77 return retval; |
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78 } |
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79 |
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80 bool |
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81 octave_matrix::valid_as_scalar_index (void) const |
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82 { |
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83 // XXX FIXME XXX |
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84 return false; |
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85 } |
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86 |
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87 double |
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88 octave_matrix::double_value (bool) const |
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89 { |
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90 double retval = lo_ieee_nan_value (); |
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91 |
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92 if (numel () > 0) |
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93 { |
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94 // XXX FIXME XXX -- is warn_fortran_indexing the right variable here? |
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95 if (Vwarn_fortran_indexing) |
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96 gripe_implicit_conversion ("real matrix", "real scalar"); |
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97 |
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98 retval = matrix (0, 0); |
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99 } |
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100 else |
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101 gripe_invalid_conversion ("real matrix", "real scalar"); |
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102 |
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103 return retval; |
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104 } |
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105 |
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106 // XXX FIXME XXX |
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107 |
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108 Matrix |
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109 octave_matrix::matrix_value (bool) const |
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110 { |
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111 return matrix.matrix_value (); |
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112 } |
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113 |
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114 Complex |
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115 octave_matrix::complex_value (bool) const |
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116 { |
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117 double tmp = lo_ieee_nan_value (); |
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118 |
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119 Complex retval (tmp, tmp); |
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120 |
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121 // XXX FIXME XXX -- maybe this should be a function, valid_as_scalar() |
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122 if (rows () > 0 && columns () > 0) |
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123 { |
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124 // XXX FIXME XXX -- is warn_fortran_indexing the right variable here? |
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125 if (Vwarn_fortran_indexing) |
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126 gripe_implicit_conversion ("real matrix", "complex scalar"); |
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127 |
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128 retval = matrix (0, 0); |
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129 } |
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130 else |
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131 gripe_invalid_conversion ("real matrix", "complex scalar"); |
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132 |
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133 return retval; |
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134 } |
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135 |
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136 // XXX FIXME XXX |
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137 |
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138 ComplexMatrix |
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139 octave_matrix::complex_matrix_value (bool) const |
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140 { |
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141 return ComplexMatrix (matrix.matrix_value ()); |
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142 } |
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143 |
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144 ComplexNDArray |
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145 octave_matrix::complex_array_value (bool) const |
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146 { |
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147 return ComplexNDArray (matrix); |
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148 } |
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149 |
4758
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150 charNDArray |
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151 octave_matrix::char_array_value (bool) const |
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152 { |
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153 charNDArray retval (dims ()); |
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154 |
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155 int nel = numel (); |
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156 |
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157 for (int i = 0; i < nel; i++) |
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158 retval.elem (i) = static_cast<char>(matrix.elem (i)); |
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159 |
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160 return retval; |
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161 } |
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162 |
5164
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163 SparseMatrix |
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164 octave_matrix::sparse_matrix_value (bool) const |
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165 { |
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166 return SparseMatrix (matrix.matrix_value ()); |
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167 } |
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168 |
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169 SparseComplexMatrix |
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170 octave_matrix::sparse_complex_matrix_value (bool) const |
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171 { |
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172 // XXX FIXME XXX Need a SparseComplexMatrix (Matrix) constructor to make |
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173 // this function more efficient. Then this should become |
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174 // return SparseComplexMatrix (matrix.matrix_value ()); |
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175 return SparseComplexMatrix (sparse_matrix_value ()); |
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176 } |
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177 |
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178 streamoff_array |
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179 octave_matrix::streamoff_array_value (void) const |
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180 { |
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181 streamoff_array retval (dims ()); |
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182 |
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183 int nel = numel (); |
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184 |
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185 for (int i = 0; i < nel; i++) |
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186 { |
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187 double d = matrix(i); |
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188 |
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189 if (D_NINT (d) == d) |
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190 retval(i) = std::streamoff (static_cast<long> (d)); |
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191 else |
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192 { |
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193 error ("conversion to streamoff_array value failed"); |
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194 break; |
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195 } |
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196 } |
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197 |
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198 return retval; |
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199 } |
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200 |
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201 octave_value |
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202 octave_matrix::convert_to_str_internal (bool, bool) const |
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203 { |
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204 octave_value retval; |
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205 dim_vector dv = dims (); |
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206 int nel = dv.numel (); |
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207 |
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208 if (nel == 0) |
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209 { |
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210 char s = '\0'; |
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211 retval = octave_value (&s); |
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212 } |
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213 else |
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214 { |
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215 charNDArray chm (dv); |
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216 |
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217 bool warned = false; |
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218 |
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219 for (int i = 0; i < nel; i++) |
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220 { |
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221 OCTAVE_QUIT; |
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222 |
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223 double d = matrix (i); |
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224 |
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225 if (xisnan (d)) |
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226 { |
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227 ::error ("invalid conversion from NaN to character"); |
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228 return retval; |
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229 } |
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230 else |
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231 { |
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232 int ival = NINT (d); |
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233 |
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234 if (ival < 0 || ival > UCHAR_MAX) |
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235 { |
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236 // XXX FIXME XXX -- is there something |
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237 // better we could do? |
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238 |
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239 ival = 0; |
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240 |
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241 if (! warned) |
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242 { |
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243 ::warning ("range error for conversion to character value"); |
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244 warned = true; |
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245 } |
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246 } |
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247 |
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248 chm (i) = static_cast<char> (ival); |
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249 } |
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250 } |
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251 |
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252 retval = octave_value (chm, 1); |
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253 } |
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254 |
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255 return retval; |
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256 } |
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257 |
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258 static Matrix |
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259 strip_infnan (const Matrix& m) |
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260 { |
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261 int nr = m.rows (); |
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262 int nc = m.columns (); |
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263 |
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264 Matrix retval (nr, nc); |
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265 |
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266 int k = 0; |
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267 for (int i = 0; i < nr; i++) |
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268 { |
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269 for (int j = 0; j < nc; j++) |
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270 { |
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271 double d = m (i, j); |
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272 if (xisnan (d)) |
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273 goto next_row; |
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274 else |
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275 retval (k, j) = xisinf (d) ? (d > 0 ? OCT_RBV : -OCT_RBV) : d; |
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276 } |
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277 k++; |
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278 |
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279 next_row: |
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280 continue; |
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281 } |
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282 |
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283 if (k > 0) |
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284 retval.resize (k, nc); |
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285 |
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286 return retval; |
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287 } |
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288 |
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289 bool |
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290 octave_matrix::save_ascii (std::ostream& os, bool& infnan_warned, |
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291 bool strip_nan_and_inf) |
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292 { |
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293 dim_vector d = dims (); |
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294 if (d.length () > 2) |
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295 { |
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296 NDArray tmp = array_value (); |
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297 |
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298 if (strip_nan_and_inf) |
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299 { |
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300 warning ("save: Can not strip Inf or NaN values"); |
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301 warning ("save: Inf or NaN values may not be reloadable"); |
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302 infnan_warned = true; |
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303 } |
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304 else if (! infnan_warned && tmp.any_element_is_inf_or_nan ()) |
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305 { |
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306 warning ("save: Inf or NaN values may not be reloadable"); |
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307 infnan_warned = true; |
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308 } |
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309 |
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310 os << "# ndims: " << d.length () << "\n"; |
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311 |
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312 for (int i=0; i < d.length (); i++) |
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313 os << " " << d (i); |
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314 |
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315 os << "\n" << tmp; |
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316 } |
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317 else |
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318 { |
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319 // Keep this case, rather than use generic code above for backward |
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320 // compatiability. Makes load_ascii much more complex!! |
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321 os << "# rows: " << rows () << "\n" |
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322 << "# columns: " << columns () << "\n"; |
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323 |
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324 Matrix tmp = matrix_value (); |
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325 |
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326 if (strip_nan_and_inf) |
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327 tmp = strip_infnan (tmp); |
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328 else if (! infnan_warned && tmp.any_element_is_inf_or_nan ()) |
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329 { |
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330 warning ("save: Inf or NaN values may not be reloadable"); |
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331 infnan_warned = true; |
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332 } |
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333 |
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334 os << tmp; |
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335 } |
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336 |
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337 return true; |
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338 } |
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339 |
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340 bool |
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341 octave_matrix::load_ascii (std::istream& is) |
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342 { |
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343 bool success = true; |
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344 |
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345 string_vector keywords(2); |
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346 |
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347 keywords[0] = "ndims"; |
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348 keywords[1] = "rows"; |
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349 |
5099
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350 std::string kw; |
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351 int val = 0; |
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352 |
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353 if (extract_keyword (is, keywords, kw, val, true)) |
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354 { |
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355 if (kw == "ndims") |
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356 { |
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357 int mdims = val; |
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358 |
5099
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359 if (mdims >= 0) |
4687
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360 { |
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361 dim_vector dv; |
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362 dv.resize (mdims); |
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363 |
5099
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364 for (int i = 0; i < mdims; i++) |
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365 is >> dv(i); |
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366 |
5099
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367 NDArray tmp(dv); |
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368 is >> tmp; |
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369 |
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370 if (!is) |
4687
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371 { |
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372 error ("load: failed to load matrix constant"); |
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373 success = false; |
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374 } |
5099
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375 matrix = tmp; |
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376 } |
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377 else |
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378 { |
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379 error ("load: failed to extract number of rows and columns"); |
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380 success = false; |
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381 } |
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382 } |
5099
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383 else if (kw == "rows") |
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384 { |
5099
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385 int nr = val; |
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386 int nc = 0; |
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387 |
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388 if (nr >= 0 && extract_keyword (is, "columns", nc) && nc >= 0) |
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389 { |
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390 if (nr > 0 && nc > 0) |
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391 { |
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392 Matrix tmp (nr, nc); |
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393 is >> tmp; |
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394 if (is) |
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395 matrix = tmp; |
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396 else |
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397 { |
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398 error ("load: failed to load matrix constant"); |
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399 success = false; |
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400 } |
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401 } |
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402 else if (nr == 0 || nc == 0) |
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403 matrix = Matrix (nr, nc); |
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404 else |
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405 panic_impossible (); |
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406 } |
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407 else |
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408 { |
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409 error ("load: failed to extract number of rows and columns"); |
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410 success = false; |
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411 } |
4687
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412 } |
5099
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413 else |
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414 panic_impossible (); |
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415 } |
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416 else |
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417 { |
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418 error ("load: failed to extract number of rows and columns"); |
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419 success = false; |
4687
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420 } |
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421 |
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422 return success; |
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423 } |
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424 |
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425 bool |
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426 octave_matrix::save_binary (std::ostream& os, bool& save_as_floats) |
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427 { |
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428 |
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429 dim_vector d = dims (); |
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430 if (d.length() < 1) |
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431 return false; |
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432 |
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433 // Use negative value for ndims to differentiate with old format!! |
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434 FOUR_BYTE_INT tmp = - d.length(); |
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435 os.write (X_CAST (char *, &tmp), 4); |
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436 for (int i=0; i < d.length (); i++) |
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437 { |
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438 tmp = d(i); |
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439 os.write (X_CAST (char *, &tmp), 4); |
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440 } |
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441 |
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442 NDArray m = array_value (); |
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443 save_type st = LS_DOUBLE; |
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444 if (save_as_floats) |
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445 { |
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446 if (m.too_large_for_float ()) |
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447 { |
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448 warning ("save: some values too large to save as floats --"); |
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449 warning ("save: saving as doubles instead"); |
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450 } |
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451 else |
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452 st = LS_FLOAT; |
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453 } |
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454 else if (d.numel () > 8192) // XXX FIXME XXX -- make this configurable. |
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455 { |
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456 double max_val, min_val; |
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457 if (m.all_integers (max_val, min_val)) |
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458 st = get_save_type (max_val, min_val); |
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459 } |
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460 |
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461 const double *mtmp = m.data (); |
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462 write_doubles (os, mtmp, st, d.numel ()); |
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463 |
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464 return true; |
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465 } |
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466 |
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467 bool |
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468 octave_matrix::load_binary (std::istream& is, bool swap, |
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469 oct_mach_info::float_format fmt) |
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470 { |
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471 char tmp; |
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472 FOUR_BYTE_INT mdims; |
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473 if (! is.read (X_CAST (char *, &mdims), 4)) |
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474 return false; |
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475 if (swap) |
4944
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476 swap_bytes<4> (&mdims); |
4687
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477 if (mdims < 0) |
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478 { |
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479 mdims = - mdims; |
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480 FOUR_BYTE_INT di; |
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481 dim_vector dv; |
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482 dv.resize (mdims); |
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483 |
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484 for (int i = 0; i < mdims; i++) |
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485 { |
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486 if (! is.read (X_CAST (char *, &di), 4)) |
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487 return false; |
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488 if (swap) |
4944
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489 swap_bytes<4> (&di); |
4687
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490 dv(i) = di; |
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491 } |
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492 |
5157
|
493 // Convert an array with a single dimension to be a row vector. |
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494 // Octave should never write files like this, other software |
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495 // might. |
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496 |
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497 if (mdims == 1) |
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498 { |
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499 mdims = 2; |
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500 dv.resize (mdims); |
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501 dv(1) = dv(0); |
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502 dv(0) = 1; |
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503 } |
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504 |
4687
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505 if (! is.read (X_CAST (char *, &tmp), 1)) |
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506 return false; |
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507 |
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508 NDArray m(dv); |
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509 double *re = m.fortran_vec (); |
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510 read_doubles (is, re, X_CAST (save_type, tmp), dv.numel (), swap, fmt); |
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511 if (error_state || ! is) |
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512 return false; |
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513 matrix = m; |
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514 } |
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515 else |
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516 { |
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517 FOUR_BYTE_INT nr, nc; |
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518 nr = mdims; |
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519 if (! is.read (X_CAST (char *, &nc), 4)) |
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520 return false; |
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521 if (swap) |
4944
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522 swap_bytes<4> (&nc); |
4687
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523 if (! is.read (X_CAST (char *, &tmp), 1)) |
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524 return false; |
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525 Matrix m (nr, nc); |
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526 double *re = m.fortran_vec (); |
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527 int len = nr * nc; |
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528 read_doubles (is, re, X_CAST (save_type, tmp), len, swap, fmt); |
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529 if (error_state || ! is) |
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530 return false; |
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531 matrix = m; |
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532 } |
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533 return true; |
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534 } |
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535 |
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536 #if defined (HAVE_HDF5) |
4944
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537 |
4687
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538 bool |
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539 octave_matrix::save_hdf5 (hid_t loc_id, const char *name, bool save_as_floats) |
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540 { |
4837
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541 dim_vector dv = dims (); |
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542 int empty = save_hdf5_empty (loc_id, name, dv); |
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543 if (empty) |
4805
|
544 return (empty > 0); |
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545 |
4837
|
546 int rank = dv.length (); |
4687
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547 hid_t space_hid = -1, data_hid = -1; |
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548 bool retval = true; |
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549 NDArray m = array_value (); |
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550 |
4805
|
551 OCTAVE_LOCAL_BUFFER (hsize_t, hdims, rank); |
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552 |
4687
|
553 // Octave uses column-major, while HDF5 uses row-major ordering |
4805
|
554 for (int i = 0; i < rank; i++) |
4837
|
555 hdims[i] = dv (rank-i-1); |
4805
|
556 |
4815
|
557 space_hid = H5Screate_simple (rank, hdims, 0); |
4687
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558 |
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559 if (space_hid < 0) return false; |
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560 |
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561 hid_t save_type_hid = H5T_NATIVE_DOUBLE; |
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562 |
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563 if (save_as_floats) |
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564 { |
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565 if (m.too_large_for_float ()) |
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566 { |
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567 warning ("save: some values too large to save as floats --"); |
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568 warning ("save: saving as doubles instead"); |
|
569 } |
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570 else |
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571 save_type_hid = H5T_NATIVE_FLOAT; |
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572 } |
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573 #if HAVE_HDF5_INT2FLOAT_CONVERSIONS |
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574 // hdf5 currently doesn't support float/integer conversions |
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575 else |
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576 { |
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577 double max_val, min_val; |
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578 |
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579 if (m.all_integers (max_val, min_val)) |
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580 save_type_hid |
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581 = save_type_to_hdf5 (get_save_type (max_val, min_val)); |
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582 } |
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583 #endif /* HAVE_HDF5_INT2FLOAT_CONVERSIONS */ |
|
584 |
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585 data_hid = H5Dcreate (loc_id, name, save_type_hid, space_hid, |
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586 H5P_DEFAULT); |
|
587 if (data_hid < 0) |
|
588 { |
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589 H5Sclose (space_hid); |
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590 return false; |
|
591 } |
|
592 |
|
593 double *mtmp = m.fortran_vec (); |
|
594 retval = H5Dwrite (data_hid, H5T_NATIVE_DOUBLE, H5S_ALL, H5S_ALL, |
4815
|
595 H5P_DEFAULT, mtmp) >= 0; |
4687
|
596 |
|
597 H5Dclose (data_hid); |
|
598 H5Sclose (space_hid); |
4837
|
599 |
4687
|
600 return retval; |
|
601 } |
|
602 |
|
603 bool |
|
604 octave_matrix::load_hdf5 (hid_t loc_id, const char *name, |
|
605 bool /* have_h5giterate_bug */) |
|
606 { |
4837
|
607 bool retval = false; |
|
608 |
4805
|
609 dim_vector dv; |
|
610 int empty = load_hdf5_empty (loc_id, name, dv); |
|
611 if (empty > 0) |
|
612 matrix.resize(dv); |
4837
|
613 if (empty) |
4805
|
614 return (empty > 0); |
|
615 |
4687
|
616 hid_t data_hid = H5Dopen (loc_id, name); |
|
617 hid_t space_id = H5Dget_space (data_hid); |
|
618 |
|
619 hsize_t rank = H5Sget_simple_extent_ndims (space_id); |
|
620 |
|
621 if (rank < 1) |
|
622 { |
|
623 H5Sclose (space_id); |
|
624 H5Dclose (data_hid); |
|
625 return false; |
|
626 } |
|
627 |
|
628 OCTAVE_LOCAL_BUFFER (hsize_t, hdims, rank); |
|
629 OCTAVE_LOCAL_BUFFER (hsize_t, maxdims, rank); |
|
630 |
|
631 H5Sget_simple_extent_dims (space_id, hdims, maxdims); |
|
632 |
|
633 // Octave uses column-major, while HDF5 uses row-major ordering |
|
634 if (rank == 1) |
|
635 { |
|
636 dv.resize (2); |
|
637 dv(0) = 1; |
|
638 dv(1) = hdims[0]; |
|
639 } |
|
640 else |
|
641 { |
|
642 dv.resize (rank); |
4815
|
643 for (hsize_t i = 0, j = rank - 1; i < rank; i++, j--) |
4687
|
644 dv(j) = hdims[i]; |
|
645 } |
|
646 |
|
647 NDArray m (dv); |
|
648 double *re = m.fortran_vec (); |
|
649 if (H5Dread (data_hid, H5T_NATIVE_DOUBLE, H5S_ALL, H5S_ALL, |
4815
|
650 H5P_DEFAULT, re) >= 0) |
4687
|
651 { |
|
652 retval = true; |
|
653 matrix = m; |
|
654 } |
|
655 |
|
656 H5Sclose (space_id); |
|
657 H5Dclose (data_hid); |
4837
|
658 |
4687
|
659 return retval; |
|
660 } |
4944
|
661 |
4687
|
662 #endif |
|
663 |
4643
|
664 void |
|
665 octave_matrix::print_raw (std::ostream& os, |
|
666 bool pr_as_read_syntax) const |
|
667 { |
|
668 octave_print_internal (os, matrix, pr_as_read_syntax, |
|
669 current_print_indent_level ()); |
|
670 } |
|
671 |
4901
|
672 DEFUN (double, args, , |
|
673 "-*- texinfo -*-\n\ |
|
674 @deftypefn {Built-in Function} {} double (@var{x})\n\ |
|
675 Convert @var{x} to double precision type.\n\ |
|
676 @end deftypefn") |
|
677 { |
|
678 OCTAVE_TYPE_CONV_BODY3 (double, octave_matrix, octave_scalar); |
|
679 } |
|
680 |
2376
|
681 /* |
|
682 ;;; Local Variables: *** |
|
683 ;;; mode: C++ *** |
|
684 ;;; End: *** |
|
685 */ |