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annotate src/ov-flt-complex.cc @ 11586:12df7854fa7c

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author John W. Eaton <jwe@octave.org>
date Thu, 20 Jan 2011 17:24:59 -0500
parents fd0a3ac60b0e
children 72c96de7a403
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1 /*
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2
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3 Copyright (C) 1996-2011 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 3 of the License, or (at your
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10 option) any 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, see
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19 <http://www.gnu.org/licenses/>.
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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 <iostream>
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28
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29 #include "lo-ieee.h"
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30 #include "lo-specfun.h"
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31 #include "lo-mappers.h"
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32
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33 #include "oct-obj.h"
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34 #include "oct-stream.h"
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35 #include "ops.h"
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36 #include "ov-complex.h"
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37 #include "ov-base.h"
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38 #include "ov-base-scalar.h"
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39 #include "ov-base-scalar.cc"
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40 #include "ov-flt-cx-mat.h"
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41 #include "ov-float.h"
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42 #include "ov-flt-complex.h"
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43 #include "gripes.h"
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44 #include "pr-output.h"
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45 #include "ops.h"
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46
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47 #include "ls-oct-ascii.h"
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48 #include "ls-hdf5.h"
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49
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50 template class octave_base_scalar<FloatComplex>;
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51
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52 DEFINE_OCTAVE_ALLOCATOR (octave_float_complex);
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53
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54 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_float_complex,
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55 "float complex scalar", "single");
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56
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57 octave_base_value *
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58 octave_float_complex::try_narrowing_conversion (void)
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59 {
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60 octave_base_value *retval = 0;
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61
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62 float im = std::imag (scalar);
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63
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64 if (im == 0.0)
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65 retval = new octave_float_scalar (std::real (scalar));
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66
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67 return retval;
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68 }
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69
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70 octave_value
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71 octave_float_complex::do_index_op (const octave_value_list& idx, bool resize_ok)
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72 {
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73 // FIXME -- this doesn't solve the problem of
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74 //
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75 // a = i; a([1,1], [1,1], [1,1])
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76 //
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77 // and similar constructions. Hmm...
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78
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79 // FIXME -- using this constructor avoids narrowing the
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80 // 1x1 matrix back to a scalar value. Need a better solution
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81 // to this problem.
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82
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83 octave_value tmp (new octave_float_complex_matrix (float_complex_matrix_value ()));
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84
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85 return tmp.do_index_op (idx, resize_ok);
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86 }
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87
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88 double
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89 octave_float_complex::double_value (bool force_conversion) const
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90 {
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91 double retval = lo_ieee_nan_value ();
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92
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93 if (! force_conversion)
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94 gripe_implicit_conversion ("Octave:imag-to-real",
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95 "complex scalar", "real scalar");
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96
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97 retval = std::real (scalar);
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98
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99 return retval;
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100 }
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101
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102 float
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103 octave_float_complex::float_value (bool force_conversion) const
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104 {
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105 float retval = lo_ieee_float_nan_value ();
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106
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107 if (! force_conversion)
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108 gripe_implicit_conversion ("Octave:imag-to-real",
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109 "complex scalar", "real scalar");
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110
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111 retval = std::real (scalar);
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112
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113 return retval;
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114 }
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115
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116 Matrix
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117 octave_float_complex::matrix_value (bool force_conversion) const
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118 {
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119 Matrix retval;
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120
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121 if (! force_conversion)
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122 gripe_implicit_conversion ("Octave:imag-to-real",
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123 "complex scalar", "real matrix");
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124
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125 retval = Matrix (1, 1, std::real (scalar));
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126
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127 return retval;
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128 }
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129
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130 FloatMatrix
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131 octave_float_complex::float_matrix_value (bool force_conversion) const
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132 {
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133 FloatMatrix retval;
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134
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135 if (! force_conversion)
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136 gripe_implicit_conversion ("Octave:imag-to-real",
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137 "complex scalar", "real matrix");
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138
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139 retval = FloatMatrix (1, 1, std::real (scalar));
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140
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141 return retval;
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142 }
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143
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144 NDArray
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145 octave_float_complex::array_value (bool force_conversion) const
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146 {
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147 NDArray retval;
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148
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149 if (! force_conversion)
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150 gripe_implicit_conversion ("Octave:imag-to-real",
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151 "complex scalar", "real matrix");
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152
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153 retval = NDArray (dim_vector (1, 1), std::real (scalar));
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154
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155 return retval;
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156 }
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157
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158 FloatNDArray
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159 octave_float_complex::float_array_value (bool force_conversion) const
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160 {
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161 FloatNDArray retval;
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162
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163 if (! force_conversion)
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164 gripe_implicit_conversion ("Octave:imag-to-real",
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165 "complex scalar", "real matrix");
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166
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167 retval = FloatNDArray (dim_vector (1, 1), std::real (scalar));
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168
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169 return retval;
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170 }
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171
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172 Complex
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173 octave_float_complex::complex_value (bool) const
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174 {
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175 return scalar;
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176 }
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177
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178 FloatComplex
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179 octave_float_complex::float_complex_value (bool) const
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180 {
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181 return static_cast<FloatComplex> (scalar);
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182 }
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183
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184 ComplexMatrix
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185 octave_float_complex::complex_matrix_value (bool) const
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186 {
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187 return ComplexMatrix (1, 1, scalar);
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188 }
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189
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190 FloatComplexMatrix
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191 octave_float_complex::float_complex_matrix_value (bool) const
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192 {
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193 return FloatComplexMatrix (1, 1, scalar);
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194 }
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195
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196 ComplexNDArray
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197 octave_float_complex::complex_array_value (bool /* force_conversion */) const
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198 {
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199 return ComplexNDArray (dim_vector (1, 1), scalar);
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200 }
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201
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202 FloatComplexNDArray
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203 octave_float_complex::float_complex_array_value (bool /* force_conversion */) const
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204 {
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205 return FloatComplexNDArray (dim_vector (1, 1), scalar);
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206 }
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207
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208 octave_value
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209 octave_float_complex::resize (const dim_vector& dv, bool fill) const
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210 {
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211 if (fill)
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212 {
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213 FloatComplexNDArray retval (dv, FloatComplexNDArray::resize_fill_value ());
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214
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215 if (dv.numel ())
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216 retval(0) = scalar;
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217
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218 return retval;
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219 }
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220 else
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221 {
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222 FloatComplexNDArray retval (dv);
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223
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224 if (dv.numel ())
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225 retval(0) = scalar;
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226
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227 return retval;
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228 }
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229 }
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230
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231 bool
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232 octave_float_complex::save_ascii (std::ostream& os)
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233 {
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234 FloatComplex c = float_complex_value ();
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235
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236 octave_write_float_complex (os, c);
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237
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238 os << "\n";
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239
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240 return true;
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241 }
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242
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243 bool
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244 octave_float_complex::load_ascii (std::istream& is)
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245 {
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246 scalar = octave_read_value<FloatComplex> (is);
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247
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248 if (!is)
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249 {
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250 error ("load: failed to load complex scalar constant");
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251 return false;
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252 }
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253
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254 return true;
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255 }
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256
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257
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258 bool
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259 octave_float_complex::save_binary (std::ostream& os, bool& /* save_as_floats */)
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260 {
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261 char tmp = static_cast<char> (LS_FLOAT);
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262 os.write (reinterpret_cast<char *> (&tmp), 1);
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263 FloatComplex ctmp = float_complex_value ();
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264 os.write (reinterpret_cast<char *> (&ctmp), 8);
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265
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266 return true;
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267 }
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268
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269 bool
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270 octave_float_complex::load_binary (std::istream& is, bool swap,
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271 oct_mach_info::float_format fmt)
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272 {
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273 char tmp;
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274 if (! is.read (reinterpret_cast<char *> (&tmp), 1))
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275 return false;
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276
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277 FloatComplex ctmp;
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278 read_floats (is, reinterpret_cast<float *> (&ctmp),
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279 static_cast<save_type> (tmp), 2, swap, fmt);
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280 if (error_state || ! is)
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281 return false;
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282
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283 scalar = ctmp;
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284 return true;
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285 }
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286
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287 #if defined (HAVE_HDF5)
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288
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289 bool
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290 octave_float_complex::save_hdf5 (hid_t loc_id, const char *name,
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291 bool /* save_as_floats */)
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292 {
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293 hsize_t dimens[3];
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294 hid_t space_hid = -1, type_hid = -1, data_hid = -1;
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295 bool retval = true;
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296
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297 space_hid = H5Screate_simple (0, dimens, 0);
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298 if (space_hid < 0)
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299 return false;
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300
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301 type_hid = hdf5_make_complex_type (H5T_NATIVE_FLOAT);
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302 if (type_hid < 0)
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303 {
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304 H5Sclose (space_hid);
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305 return false;
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306 }
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307 #if HAVE_HDF5_18
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308 data_hid = H5Dcreate (loc_id, name, type_hid, space_hid,
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309 H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
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310 #else
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311 data_hid = H5Dcreate (loc_id, name, type_hid, space_hid, H5P_DEFAULT);
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312 #endif
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313 if (data_hid < 0)
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314 {
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315 H5Sclose (space_hid);
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316 H5Tclose (type_hid);
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317 return false;
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318 }
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319
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320 FloatComplex tmp = float_complex_value ();
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321 retval = H5Dwrite (data_hid, type_hid, H5S_ALL, H5S_ALL, H5P_DEFAULT,
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322 &tmp) >= 0;
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323
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324 H5Dclose (data_hid);
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325 H5Tclose (type_hid);
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326 H5Sclose (space_hid);
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327
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328 return retval;
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329 }
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330
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331 bool
9881
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Kacper Kowalik
parents: 9825
diff changeset
332 octave_float_complex::load_hdf5 (hid_t loc_id, const char *name)
7789
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333 {
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334 bool retval = false;
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335 #if HAVE_HDF5_18
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336 hid_t data_hid = H5Dopen (loc_id, name, H5P_DEFAULT);
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337 #else
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338 hid_t data_hid = H5Dopen (loc_id, name);
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339 #endif
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340 hid_t type_hid = H5Dget_type (data_hid);
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341
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342 hid_t complex_type = hdf5_make_complex_type (H5T_NATIVE_FLOAT);
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343
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344 if (! hdf5_types_compatible (type_hid, complex_type))
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345 {
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346 H5Tclose (complex_type);
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347 H5Dclose (data_hid);
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348 return false;
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349 }
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350
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351 hid_t space_id = H5Dget_space (data_hid);
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352 hsize_t rank = H5Sget_simple_extent_ndims (space_id);
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353
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354 if (rank != 0)
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355 {
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356 H5Tclose (complex_type);
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357 H5Sclose (space_id);
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358 H5Dclose (data_hid);
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359 return false;
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360 }
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361
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362 // complex scalar:
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363 FloatComplex ctmp;
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364 if (H5Dread (data_hid, complex_type, H5S_ALL, H5S_ALL, H5P_DEFAULT,
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365 &ctmp) >= 0)
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366 {
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367 retval = true;
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368 scalar = ctmp;
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369 }
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370
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371 H5Tclose (complex_type);
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372 H5Sclose (space_id);
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373 H5Dclose (data_hid);
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374
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375 return retval;
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376 }
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377
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378 #endif
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379
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380 mxArray *
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381 octave_float_complex::as_mxArray (void) const
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382 {
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383 mxArray *retval = new mxArray (mxSINGLE_CLASS, 1, 1, mxCOMPLEX);
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384
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385 float *pr = static_cast<float *> (retval->get_data ());
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386 float *pi = static_cast<float *> (retval->get_imag_data ());
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387
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388 pr[0] = std::real (scalar);
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389 pi[0] = std::imag (scalar);
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390
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391 return retval;
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392 }
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393
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394 octave_value
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395 octave_float_complex::map (unary_mapper_t umap) const
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396 {
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397 switch (umap)
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398 {
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399 #define SCALAR_MAPPER(UMAP, FCN) \
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400 case umap_ ## UMAP: \
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401 return octave_value (FCN (scalar))
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402
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403 SCALAR_MAPPER (abs, std::abs);
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404 SCALAR_MAPPER (acos, ::acos);
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405 SCALAR_MAPPER (acosh, ::acosh);
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406 SCALAR_MAPPER (angle, std::arg);
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407 SCALAR_MAPPER (arg, std::arg);
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408 SCALAR_MAPPER (asin, ::asin);
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409 SCALAR_MAPPER (asinh, ::asinh);
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410 SCALAR_MAPPER (atan, ::atan);
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411 SCALAR_MAPPER (atanh, ::atanh);
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412 SCALAR_MAPPER (ceil, ::ceil);
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413 SCALAR_MAPPER (conj, std::conj);
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414 SCALAR_MAPPER (cos, std::cos);
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415 SCALAR_MAPPER (cosh, std::cosh);
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416 SCALAR_MAPPER (exp, std::exp);
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417 SCALAR_MAPPER (expm1, ::expm1);
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418 SCALAR_MAPPER (fix, ::fix);
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419 SCALAR_MAPPER (floor, ::floor);
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420 SCALAR_MAPPER (imag, std::imag);
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421 SCALAR_MAPPER (log, std::log);
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422 SCALAR_MAPPER (log2, xlog2);
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423 SCALAR_MAPPER (log10, std::log10);
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424 SCALAR_MAPPER (log1p, ::log1p);
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425 SCALAR_MAPPER (real, std::real);
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426 SCALAR_MAPPER (round, xround);
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427 SCALAR_MAPPER (roundb, xroundb);
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428 SCALAR_MAPPER (signum, ::signum);
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429 SCALAR_MAPPER (sin, std::sin);
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430 SCALAR_MAPPER (sinh, std::sinh);
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431 SCALAR_MAPPER (sqrt, std::sqrt);
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432 SCALAR_MAPPER (tan, std::tan);
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433 SCALAR_MAPPER (tanh, std::tanh);
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434 SCALAR_MAPPER (finite, xfinite);
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435 SCALAR_MAPPER (isinf, xisinf);
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436 SCALAR_MAPPER (isna, octave_is_NA);
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437 SCALAR_MAPPER (isnan, xisnan);
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438
9812
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439 default:
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440 return octave_base_value::map (umap);
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441 }
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442 }