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1 /* |
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2 |
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2847
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3 Copyright (C) 1996, 1997 John W. Eaton |
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2376
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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, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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20 02110-1301, USA. |
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21 |
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22 */ |
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23 |
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24 #ifdef HAVE_CONFIG_H |
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25 #include <config.h> |
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26 #endif |
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27 |
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4100
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28 #include <climits> |
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29 |
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3503
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30 #include <iostream> |
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4726
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31 #include <vector> |
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2901
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32 |
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4944
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33 #include "data-conv.h" |
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34 #include "lo-ieee.h" |
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35 #include "lo-utils.h" |
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4944
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36 #include "mach-info.h" |
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37 #include "mx-base.h" |
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4153
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38 #include "quit.h" |
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39 |
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4901
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40 #include "defun.h" |
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41 #include "gripes.h" |
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42 #include "oct-obj.h" |
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2979
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43 #include "oct-lvalue.h" |
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4944
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44 #include "oct-stream.h" |
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2410
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45 #include "ops.h" |
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3219
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46 #include "ov-base.h" |
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47 #include "ov-base-mat.h" |
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48 #include "ov-base-mat.cc" |
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2410
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49 #include "ov-scalar.h" |
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50 #include "ov-re-mat.h" |
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4901
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51 #include "ov-type-conv.h" |
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52 #include "pr-output.h" |
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2948
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53 #include "variables.h" |
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54 |
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55 #include "byte-swap.h" |
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56 #include "ls-oct-ascii.h" |
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57 #include "ls-utils.h" |
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4805
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58 #include "ls-hdf5.h" |
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59 |
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4100
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60 #if ! defined (UCHAR_MAX) |
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61 #define UCHAR_MAX 255 |
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62 #endif |
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63 |
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4513
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64 template class octave_base_matrix<NDArray>; |
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65 |
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3219
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66 DEFINE_OCTAVE_ALLOCATOR (octave_matrix); |
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2477
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67 |
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4612
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68 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_matrix, "matrix", "double"); |
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69 |
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70 octave_base_value * |
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2410
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71 octave_matrix::try_narrowing_conversion (void) |
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72 { |
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73 octave_base_value *retval = 0; |
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2410
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74 |
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4513
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75 if (matrix.nelem () == 1) |
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76 retval = new octave_scalar (matrix (0)); |
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2410
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77 |
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78 return retval; |
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79 } |
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80 |
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81 bool |
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82 octave_matrix::valid_as_scalar_index (void) const |
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83 { |
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5775
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84 // FIXME |
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85 return false; |
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86 } |
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87 |
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88 double |
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89 octave_matrix::double_value (bool) const |
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90 { |
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4102
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91 double retval = lo_ieee_nan_value (); |
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92 |
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4645
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93 if (numel () > 0) |
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4455
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94 { |
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5781
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95 gripe_implicit_conversion ("Octave:array-as-scalar", |
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96 "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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5775
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106 // FIXME |
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4513
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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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4102
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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 if (rows () > 0 && columns () > 0) |
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122 { |
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123 gripe_implicit_conversion ("Octave:array-as-scalar", |
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124 "real matrix", "complex scalar"); |
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125 |
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126 retval = matrix (0, 0); |
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127 } |
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128 else |
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129 gripe_invalid_conversion ("real matrix", "complex scalar"); |
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130 |
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131 return retval; |
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132 } |
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133 |
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5775
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134 // FIXME |
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135 |
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136 ComplexMatrix |
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137 octave_matrix::complex_matrix_value (bool) const |
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138 { |
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139 return ComplexMatrix (matrix.matrix_value ()); |
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140 } |
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141 |
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4699
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142 ComplexNDArray |
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143 octave_matrix::complex_array_value (bool) const |
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144 { |
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145 return ComplexNDArray (matrix); |
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146 } |
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147 |
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5898
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148 boolNDArray |
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149 octave_matrix::bool_array_value (void) const |
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150 { |
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151 return boolNDArray (matrix); |
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152 } |
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153 |
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4758
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154 charNDArray |
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155 octave_matrix::char_array_value (bool) const |
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156 { |
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157 charNDArray retval (dims ()); |
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158 |
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5275
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159 octave_idx_type nel = numel (); |
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4758
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160 |
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5275
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161 for (octave_idx_type i = 0; i < nel; i++) |
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162 retval.elem (i) = static_cast<char>(matrix.elem (i)); |
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163 |
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164 return retval; |
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165 } |
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166 |
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5164
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167 SparseMatrix |
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168 octave_matrix::sparse_matrix_value (bool) const |
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169 { |
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170 return SparseMatrix (matrix.matrix_value ()); |
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171 } |
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172 |
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173 SparseComplexMatrix |
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174 octave_matrix::sparse_complex_matrix_value (bool) const |
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175 { |
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5775
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176 // FIXME Need a SparseComplexMatrix (Matrix) constructor to make |
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177 // this function more efficient. Then this should become |
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178 // return SparseComplexMatrix (matrix.matrix_value ()); |
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179 return SparseComplexMatrix (sparse_matrix_value ()); |
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180 } |
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181 |
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182 streamoff_array |
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183 octave_matrix::streamoff_array_value (void) const |
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184 { |
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185 streamoff_array retval (dims ()); |
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186 |
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5275
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187 octave_idx_type nel = numel (); |
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188 |
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5275
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189 for (octave_idx_type i = 0; i < nel; i++) |
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190 { |
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191 double d = matrix(i); |
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192 |
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193 if (D_NINT (d) == d) |
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194 retval(i) = std::streamoff (static_cast<long> (d)); |
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195 else |
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196 { |
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197 error ("conversion to streamoff_array value failed"); |
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198 break; |
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199 } |
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200 } |
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201 |
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202 return retval; |
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203 } |
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204 |
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205 octave_value |
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5279
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206 octave_matrix::convert_to_str_internal (bool, bool, char type) const |
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207 { |
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208 octave_value retval; |
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4844
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209 dim_vector dv = dims (); |
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210 octave_idx_type nel = dv.numel (); |
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211 |
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212 charNDArray chm (dv); |
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213 |
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5862
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214 bool warned = false; |
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215 |
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216 for (octave_idx_type i = 0; i < nel; i++) |
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217 { |
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218 OCTAVE_QUIT; |
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219 |
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220 double d = matrix (i); |
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221 |
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5862
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222 if (xisnan (d)) |
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223 { |
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224 ::error ("invalid conversion from NaN to character"); |
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225 return retval; |
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226 } |
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227 else |
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228 { |
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5862
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229 int ival = NINT (d); |
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230 |
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5862
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231 if (ival < 0 || ival > UCHAR_MAX) |
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232 { |
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233 // FIXME -- is there something |
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234 // better we could do? |
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235 |
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5862
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236 ival = 0; |
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237 |
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238 if (! warned) |
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239 { |
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240 ::warning ("range error for conversion to character value"); |
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241 warned = true; |
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242 } |
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4844
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243 } |
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244 |
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5862
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245 chm (i) = static_cast<char> (ival); |
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246 } |
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247 } |
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248 |
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5862
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249 retval = octave_value (chm, true, type); |
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250 |
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251 return retval; |
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252 } |
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253 |
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4687
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254 static Matrix |
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255 strip_infnan (const Matrix& m) |
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256 { |
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5275
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257 octave_idx_type nr = m.rows (); |
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258 octave_idx_type nc = m.columns (); |
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4687
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259 |
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260 Matrix retval (nr, nc); |
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261 |
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5275
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262 octave_idx_type k = 0; |
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263 for (octave_idx_type i = 0; i < nr; i++) |
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4687
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264 { |
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5275
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265 for (octave_idx_type j = 0; j < nc; j++) |
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4687
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266 { |
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267 double d = m (i, j); |
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268 if (xisnan (d)) |
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269 goto next_row; |
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270 else |
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271 retval (k, j) = xisinf (d) ? (d > 0 ? OCT_RBV : -OCT_RBV) : d; |
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272 } |
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273 k++; |
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274 |
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275 next_row: |
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276 continue; |
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277 } |
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278 |
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279 if (k > 0) |
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280 retval.resize (k, nc); |
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281 |
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282 return retval; |
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283 } |
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284 |
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285 bool |
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286 octave_matrix::save_ascii (std::ostream& os, bool& infnan_warned, |
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287 bool strip_nan_and_inf) |
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288 { |
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289 dim_vector d = dims (); |
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290 if (d.length () > 2) |
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291 { |
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292 NDArray tmp = array_value (); |
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293 |
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294 if (strip_nan_and_inf) |
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295 { |
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296 warning ("save: Can not strip Inf or NaN values"); |
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297 warning ("save: Inf or NaN values may not be reloadable"); |
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298 infnan_warned = true; |
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299 } |
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300 else if (! infnan_warned && tmp.any_element_is_inf_or_nan ()) |
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301 { |
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302 warning ("save: Inf or NaN values may not be reloadable"); |
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303 infnan_warned = true; |
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304 } |
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305 |
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306 os << "# ndims: " << d.length () << "\n"; |
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307 |
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308 for (int i=0; i < d.length (); i++) |
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309 os << " " << d (i); |
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310 |
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311 os << "\n" << tmp; |
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312 } |
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313 else |
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314 { |
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315 // Keep this case, rather than use generic code above for backward |
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316 // compatiability. Makes load_ascii much more complex!! |
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317 os << "# rows: " << rows () << "\n" |
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318 << "# columns: " << columns () << "\n"; |
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319 |
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320 Matrix tmp = matrix_value (); |
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321 |
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322 if (strip_nan_and_inf) |
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323 tmp = strip_infnan (tmp); |
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324 else if (! infnan_warned && tmp.any_element_is_inf_or_nan ()) |
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325 { |
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326 warning ("save: Inf or NaN values may not be reloadable"); |
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327 infnan_warned = true; |
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328 } |
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329 |
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330 os << tmp; |
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331 } |
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332 |
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333 return true; |
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334 } |
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335 |
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336 bool |
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337 octave_matrix::load_ascii (std::istream& is) |
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338 { |
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339 bool success = true; |
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5099
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340 |
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341 string_vector keywords(2); |
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342 |
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343 keywords[0] = "ndims"; |
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344 keywords[1] = "rows"; |
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4687
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345 |
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5099
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346 std::string kw; |
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5275
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347 octave_idx_type val = 0; |
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5099
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348 |
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349 if (extract_keyword (is, keywords, kw, val, true)) |
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4687
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350 { |
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5099
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351 if (kw == "ndims") |
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4687
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352 { |
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5275
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353 int mdims = static_cast<int> (val); |
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4687
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354 |
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5099
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355 if (mdims >= 0) |
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4687
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356 { |
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5099
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357 dim_vector dv; |
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358 dv.resize (mdims); |
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4687
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359 |
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5099
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360 for (int i = 0; i < mdims; i++) |
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361 is >> dv(i); |
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4687
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362 |
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5099
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363 NDArray tmp(dv); |
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4687
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364 is >> tmp; |
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5099
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365 |
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366 if (!is) |
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4687
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367 { |
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368 error ("load: failed to load matrix constant"); |
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369 success = false; |
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370 } |
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5099
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371 matrix = tmp; |
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4687
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372 } |
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373 else |
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5099
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374 { |
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375 error ("load: failed to extract number of rows and columns"); |
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376 success = false; |
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377 } |
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4687
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378 } |
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5099
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379 else if (kw == "rows") |
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4687
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380 { |
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5275
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381 octave_idx_type nr = val; |
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382 octave_idx_type nc = 0; |
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5099
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383 |
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384 if (nr >= 0 && extract_keyword (is, "columns", nc) && nc >= 0) |
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385 { |
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386 if (nr > 0 && nc > 0) |
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387 { |
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388 Matrix tmp (nr, nc); |
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389 is >> tmp; |
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390 if (is) |
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391 matrix = tmp; |
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392 else |
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393 { |
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394 error ("load: failed to load matrix constant"); |
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395 success = false; |
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396 } |
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397 } |
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398 else if (nr == 0 || nc == 0) |
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399 matrix = Matrix (nr, nc); |
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400 else |
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401 panic_impossible (); |
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402 } |
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403 else |
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404 { |
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405 error ("load: failed to extract number of rows and columns"); |
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406 success = false; |
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407 } |
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4687
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408 } |
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5099
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409 else |
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410 panic_impossible (); |
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411 } |
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412 else |
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413 { |
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414 error ("load: failed to extract number of rows and columns"); |
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415 success = false; |
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4687
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416 } |
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417 |
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418 return success; |
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419 } |
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420 |
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421 bool |
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422 octave_matrix::save_binary (std::ostream& os, bool& save_as_floats) |
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423 { |
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424 |
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425 dim_vector d = dims (); |
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426 if (d.length() < 1) |
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427 return false; |
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428 |
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429 // Use negative value for ndims to differentiate with old format!! |
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5828
|
430 int32_t tmp = - d.length(); |
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5760
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431 os.write (reinterpret_cast<char *> (&tmp), 4); |
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5275
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432 for (int i = 0; i < d.length (); i++) |
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4687
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433 { |
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434 tmp = d(i); |
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5760
|
435 os.write (reinterpret_cast<char *> (&tmp), 4); |
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4687
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436 } |
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437 |
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438 NDArray m = array_value (); |
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439 save_type st = LS_DOUBLE; |
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440 if (save_as_floats) |
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441 { |
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442 if (m.too_large_for_float ()) |
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443 { |
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444 warning ("save: some values too large to save as floats --"); |
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445 warning ("save: saving as doubles instead"); |
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446 } |
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447 else |
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448 st = LS_FLOAT; |
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449 } |
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5775
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450 else if (d.numel () > 8192) // FIXME -- make this configurable. |
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4687
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451 { |
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452 double max_val, min_val; |
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453 if (m.all_integers (max_val, min_val)) |
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454 st = get_save_type (max_val, min_val); |
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|
455 } |
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456 |
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457 const double *mtmp = m.data (); |
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458 write_doubles (os, mtmp, st, d.numel ()); |
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459 |
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460 return true; |
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|
461 } |
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462 |
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463 bool |
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|
464 octave_matrix::load_binary (std::istream& is, bool swap, |
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|
465 oct_mach_info::float_format fmt) |
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|
466 { |
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|
467 char tmp; |
|
5828
|
468 int32_t mdims; |
|
5760
|
469 if (! is.read (reinterpret_cast<char *> (&mdims), 4)) |
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4687
|
470 return false; |
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|
471 if (swap) |
|
4944
|
472 swap_bytes<4> (&mdims); |
|
4687
|
473 if (mdims < 0) |
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|
474 { |
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|
475 mdims = - mdims; |
|
5828
|
476 int32_t di; |
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4687
|
477 dim_vector dv; |
|
|
478 dv.resize (mdims); |
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|
479 |
|
|
480 for (int i = 0; i < mdims; i++) |
|
|
481 { |
|
5760
|
482 if (! is.read (reinterpret_cast<char *> (&di), 4)) |
|
4687
|
483 return false; |
|
|
484 if (swap) |
|
4944
|
485 swap_bytes<4> (&di); |
|
4687
|
486 dv(i) = di; |
|
|
487 } |
|
|
488 |
|
5157
|
489 // Convert an array with a single dimension to be a row vector. |
|
|
490 // Octave should never write files like this, other software |
|
|
491 // might. |
|
|
492 |
|
|
493 if (mdims == 1) |
|
|
494 { |
|
|
495 mdims = 2; |
|
|
496 dv.resize (mdims); |
|
|
497 dv(1) = dv(0); |
|
|
498 dv(0) = 1; |
|
|
499 } |
|
|
500 |
|
5760
|
501 if (! is.read (reinterpret_cast<char *> (&tmp), 1)) |
|
4687
|
502 return false; |
|
|
503 |
|
|
504 NDArray m(dv); |
|
|
505 double *re = m.fortran_vec (); |
|
5760
|
506 read_doubles (is, re, static_cast<save_type> (tmp), dv.numel (), swap, fmt); |
|
4687
|
507 if (error_state || ! is) |
|
|
508 return false; |
|
|
509 matrix = m; |
|
|
510 } |
|
|
511 else |
|
|
512 { |
|
5828
|
513 int32_t nr, nc; |
|
4687
|
514 nr = mdims; |
|
5760
|
515 if (! is.read (reinterpret_cast<char *> (&nc), 4)) |
|
4687
|
516 return false; |
|
|
517 if (swap) |
|
4944
|
518 swap_bytes<4> (&nc); |
|
5760
|
519 if (! is.read (reinterpret_cast<char *> (&tmp), 1)) |
|
4687
|
520 return false; |
|
|
521 Matrix m (nr, nc); |
|
|
522 double *re = m.fortran_vec (); |
|
5275
|
523 octave_idx_type len = nr * nc; |
|
5760
|
524 read_doubles (is, re, static_cast<save_type> (tmp), len, swap, fmt); |
|
4687
|
525 if (error_state || ! is) |
|
|
526 return false; |
|
|
527 matrix = m; |
|
|
528 } |
|
|
529 return true; |
|
|
530 } |
|
|
531 |
|
|
532 #if defined (HAVE_HDF5) |
|
4944
|
533 |
|
4687
|
534 bool |
|
|
535 octave_matrix::save_hdf5 (hid_t loc_id, const char *name, bool save_as_floats) |
|
|
536 { |
|
4837
|
537 dim_vector dv = dims (); |
|
|
538 int empty = save_hdf5_empty (loc_id, name, dv); |
|
|
539 if (empty) |
|
4805
|
540 return (empty > 0); |
|
|
541 |
|
4837
|
542 int rank = dv.length (); |
|
4687
|
543 hid_t space_hid = -1, data_hid = -1; |
|
|
544 bool retval = true; |
|
|
545 NDArray m = array_value (); |
|
|
546 |
|
4805
|
547 OCTAVE_LOCAL_BUFFER (hsize_t, hdims, rank); |
|
|
548 |
|
4687
|
549 // Octave uses column-major, while HDF5 uses row-major ordering |
|
4805
|
550 for (int i = 0; i < rank; i++) |
|
4837
|
551 hdims[i] = dv (rank-i-1); |
|
4805
|
552 |
|
4815
|
553 space_hid = H5Screate_simple (rank, hdims, 0); |
|
4687
|
554 |
|
|
555 if (space_hid < 0) return false; |
|
|
556 |
|
|
557 hid_t save_type_hid = H5T_NATIVE_DOUBLE; |
|
|
558 |
|
|
559 if (save_as_floats) |
|
|
560 { |
|
|
561 if (m.too_large_for_float ()) |
|
|
562 { |
|
|
563 warning ("save: some values too large to save as floats --"); |
|
|
564 warning ("save: saving as doubles instead"); |
|
|
565 } |
|
|
566 else |
|
|
567 save_type_hid = H5T_NATIVE_FLOAT; |
|
|
568 } |
|
|
569 #if HAVE_HDF5_INT2FLOAT_CONVERSIONS |
|
|
570 // hdf5 currently doesn't support float/integer conversions |
|
|
571 else |
|
|
572 { |
|
|
573 double max_val, min_val; |
|
|
574 |
|
|
575 if (m.all_integers (max_val, min_val)) |
|
|
576 save_type_hid |
|
|
577 = save_type_to_hdf5 (get_save_type (max_val, min_val)); |
|
|
578 } |
|
|
579 #endif /* HAVE_HDF5_INT2FLOAT_CONVERSIONS */ |
|
|
580 |
|
|
581 data_hid = H5Dcreate (loc_id, name, save_type_hid, space_hid, |
|
|
582 H5P_DEFAULT); |
|
|
583 if (data_hid < 0) |
|
|
584 { |
|
|
585 H5Sclose (space_hid); |
|
|
586 return false; |
|
|
587 } |
|
|
588 |
|
|
589 double *mtmp = m.fortran_vec (); |
|
|
590 retval = H5Dwrite (data_hid, H5T_NATIVE_DOUBLE, H5S_ALL, H5S_ALL, |
|
4815
|
591 H5P_DEFAULT, mtmp) >= 0; |
|
4687
|
592 |
|
|
593 H5Dclose (data_hid); |
|
|
594 H5Sclose (space_hid); |
|
4837
|
595 |
|
4687
|
596 return retval; |
|
|
597 } |
|
|
598 |
|
|
599 bool |
|
|
600 octave_matrix::load_hdf5 (hid_t loc_id, const char *name, |
|
|
601 bool /* have_h5giterate_bug */) |
|
|
602 { |
|
4837
|
603 bool retval = false; |
|
|
604 |
|
4805
|
605 dim_vector dv; |
|
|
606 int empty = load_hdf5_empty (loc_id, name, dv); |
|
|
607 if (empty > 0) |
|
|
608 matrix.resize(dv); |
|
4837
|
609 if (empty) |
|
4805
|
610 return (empty > 0); |
|
|
611 |
|
4687
|
612 hid_t data_hid = H5Dopen (loc_id, name); |
|
|
613 hid_t space_id = H5Dget_space (data_hid); |
|
|
614 |
|
|
615 hsize_t rank = H5Sget_simple_extent_ndims (space_id); |
|
|
616 |
|
|
617 if (rank < 1) |
|
|
618 { |
|
|
619 H5Sclose (space_id); |
|
|
620 H5Dclose (data_hid); |
|
|
621 return false; |
|
|
622 } |
|
|
623 |
|
|
624 OCTAVE_LOCAL_BUFFER (hsize_t, hdims, rank); |
|
|
625 OCTAVE_LOCAL_BUFFER (hsize_t, maxdims, rank); |
|
|
626 |
|
|
627 H5Sget_simple_extent_dims (space_id, hdims, maxdims); |
|
|
628 |
|
|
629 // Octave uses column-major, while HDF5 uses row-major ordering |
|
|
630 if (rank == 1) |
|
|
631 { |
|
|
632 dv.resize (2); |
|
|
633 dv(0) = 1; |
|
|
634 dv(1) = hdims[0]; |
|
|
635 } |
|
|
636 else |
|
|
637 { |
|
|
638 dv.resize (rank); |
|
4815
|
639 for (hsize_t i = 0, j = rank - 1; i < rank; i++, j--) |
|
4687
|
640 dv(j) = hdims[i]; |
|
|
641 } |
|
|
642 |
|
|
643 NDArray m (dv); |
|
|
644 double *re = m.fortran_vec (); |
|
|
645 if (H5Dread (data_hid, H5T_NATIVE_DOUBLE, H5S_ALL, H5S_ALL, |
|
4815
|
646 H5P_DEFAULT, re) >= 0) |
|
4687
|
647 { |
|
|
648 retval = true; |
|
|
649 matrix = m; |
|
|
650 } |
|
|
651 |
|
|
652 H5Sclose (space_id); |
|
|
653 H5Dclose (data_hid); |
|
4837
|
654 |
|
4687
|
655 return retval; |
|
|
656 } |
|
4944
|
657 |
|
4687
|
658 #endif |
|
|
659 |
|
4643
|
660 void |
|
|
661 octave_matrix::print_raw (std::ostream& os, |
|
|
662 bool pr_as_read_syntax) const |
|
|
663 { |
|
|
664 octave_print_internal (os, matrix, pr_as_read_syntax, |
|
|
665 current_print_indent_level ()); |
|
|
666 } |
|
|
667 |
|
5900
|
668 mxArray * |
|
|
669 octave_matrix::as_mxArray (void) const |
|
|
670 { |
|
|
671 mxArray *retval = new mxArray (mxDOUBLE_CLASS, dims (), mxREAL); |
|
|
672 |
|
|
673 double *pr = static_cast<double *> (retval->get_data ()); |
|
|
674 |
|
|
675 int nel = numel (); |
|
|
676 |
|
|
677 const double *p = matrix.data (); |
|
|
678 |
|
|
679 for (int i = 0; i < nel; i++) |
|
|
680 pr[i] = p[i]; |
|
|
681 |
|
|
682 return retval; |
|
|
683 } |
|
|
684 |
|
4901
|
685 DEFUN (double, args, , |
|
|
686 "-*- texinfo -*-\n\ |
|
|
687 @deftypefn {Built-in Function} {} double (@var{x})\n\ |
|
|
688 Convert @var{x} to double precision type.\n\ |
|
|
689 @end deftypefn") |
|
|
690 { |
|
|
691 OCTAVE_TYPE_CONV_BODY3 (double, octave_matrix, octave_scalar); |
|
|
692 } |
|
|
693 |
|
2376
|
694 /* |
|
|
695 ;;; Local Variables: *** |
|
|
696 ;;; mode: C++ *** |
|
|
697 ;;; End: *** |
|
|
698 */ |
