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annotate src/ov-flt-complex.cc @ 10454:79a56d0a6a0d ss-3-3-51

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version is now 3.3.51
author John W. Eaton <jwe@octave.org>
date Wed, 24 Mar 2010 16:27:05 -0400
parents 57a59eae83cc
children fd0a3ac60b0e
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1 /*
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2
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3 Copyright (C) 1996, 1997, 1998, 2000, 2001, 2002, 2003, 2004, 2005,
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eb63fbe60fab update copyright notices
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4 2006, 2007, 2008 John W. Eaton
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5
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6 This file is part of Octave.
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7
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8 Octave is free software; you can redistribute it and/or modify it
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9 under the terms of the GNU General Public License as published by the
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10 Free Software Foundation; either version 3 of the License, or (at your
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11 option) any later version.
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12
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13 Octave is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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16 for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with Octave; see the file COPYING. If not, see
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20 <http://www.gnu.org/licenses/>.
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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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28 #include <iostream>
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29
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30 #include "lo-ieee.h"
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31 #include "lo-specfun.h"
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32 #include "lo-mappers.h"
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33
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34 #include "oct-obj.h"
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35 #include "oct-stream.h"
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36 #include "ops.h"
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37 #include "ov-complex.h"
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38 #include "ov-base.h"
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39 #include "ov-base-scalar.h"
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40 #include "ov-base-scalar.cc"
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41 #include "ov-flt-cx-mat.h"
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42 #include "ov-float.h"
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43 #include "ov-flt-complex.h"
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44 #include "gripes.h"
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45 #include "pr-output.h"
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46 #include "ops.h"
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47
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48 #include "ls-oct-ascii.h"
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49 #include "ls-hdf5.h"
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50
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51 template class octave_base_scalar<FloatComplex>;
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52
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53 DEFINE_OCTAVE_ALLOCATOR (octave_float_complex);
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54
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55 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_float_complex,
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56 "float complex scalar", "single");
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57
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58 octave_base_value *
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59 octave_float_complex::try_narrowing_conversion (void)
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60 {
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61 octave_base_value *retval = 0;
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62
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63 float im = std::imag (scalar);
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64
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65 if (im == 0.0)
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66 retval = new octave_float_scalar (std::real (scalar));
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67
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68 return retval;
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69 }
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70
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71 octave_value
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72 octave_float_complex::do_index_op (const octave_value_list& idx, bool resize_ok)
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73 {
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74 // FIXME -- this doesn't solve the problem of
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75 //
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76 // a = i; a([1,1], [1,1], [1,1])
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77 //
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78 // and similar constructions. Hmm...
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79
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80 // FIXME -- using this constructor avoids narrowing the
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81 // 1x1 matrix back to a scalar value. Need a better solution
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82 // to this problem.
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83
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84 octave_value tmp (new octave_float_complex_matrix (float_complex_matrix_value ()));
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85
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86 return tmp.do_index_op (idx, resize_ok);
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87 }
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88
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89 double
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90 octave_float_complex::double_value (bool force_conversion) const
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91 {
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92 double retval = lo_ieee_nan_value ();
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93
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94 if (! force_conversion)
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95 gripe_implicit_conversion ("Octave:imag-to-real",
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96 "complex scalar", "real scalar");
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97
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98 retval = std::real (scalar);
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99
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100 return retval;
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101 }
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102
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103 float
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104 octave_float_complex::float_value (bool force_conversion) const
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105 {
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106 float retval = lo_ieee_float_nan_value ();
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107
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108 if (! force_conversion)
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109 gripe_implicit_conversion ("Octave:imag-to-real",
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110 "complex scalar", "real scalar");
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111
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112 retval = std::real (scalar);
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113
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114 return retval;
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115 }
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116
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117 Matrix
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118 octave_float_complex::matrix_value (bool force_conversion) const
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119 {
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120 Matrix retval;
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121
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122 if (! force_conversion)
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123 gripe_implicit_conversion ("Octave:imag-to-real",
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124 "complex scalar", "real matrix");
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125
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126 retval = Matrix (1, 1, std::real (scalar));
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127
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128 return retval;
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129 }
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130
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131 FloatMatrix
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132 octave_float_complex::float_matrix_value (bool force_conversion) const
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133 {
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134 FloatMatrix retval;
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135
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136 if (! force_conversion)
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137 gripe_implicit_conversion ("Octave:imag-to-real",
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138 "complex scalar", "real matrix");
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139
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140 retval = FloatMatrix (1, 1, std::real (scalar));
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141
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142 return retval;
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143 }
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144
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145 NDArray
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146 octave_float_complex::array_value (bool force_conversion) const
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147 {
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148 NDArray retval;
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149
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150 if (! force_conversion)
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151 gripe_implicit_conversion ("Octave:imag-to-real",
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152 "complex scalar", "real matrix");
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153
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154 retval = NDArray (dim_vector (1, 1), std::real (scalar));
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155
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156 return retval;
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157 }
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158
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159 FloatNDArray
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160 octave_float_complex::float_array_value (bool force_conversion) const
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161 {
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162 FloatNDArray retval;
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163
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164 if (! force_conversion)
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165 gripe_implicit_conversion ("Octave:imag-to-real",
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166 "complex scalar", "real matrix");
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167
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168 retval = FloatNDArray (dim_vector (1, 1), std::real (scalar));
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169
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170 return retval;
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171 }
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172
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173 Complex
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174 octave_float_complex::complex_value (bool) const
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175 {
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176 return scalar;
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177 }
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178
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179 FloatComplex
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180 octave_float_complex::float_complex_value (bool) const
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181 {
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182 return static_cast<FloatComplex> (scalar);
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183 }
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184
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185 ComplexMatrix
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186 octave_float_complex::complex_matrix_value (bool) const
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187 {
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188 return ComplexMatrix (1, 1, scalar);
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189 }
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190
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191 FloatComplexMatrix
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192 octave_float_complex::float_complex_matrix_value (bool) const
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193 {
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194 return FloatComplexMatrix (1, 1, scalar);
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195 }
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196
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197 ComplexNDArray
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198 octave_float_complex::complex_array_value (bool /* force_conversion */) const
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199 {
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200 return ComplexNDArray (dim_vector (1, 1), scalar);
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201 }
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202
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203 FloatComplexNDArray
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204 octave_float_complex::float_complex_array_value (bool /* force_conversion */) const
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205 {
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206 return FloatComplexNDArray (dim_vector (1, 1), scalar);
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207 }
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208
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209 octave_value
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210 octave_float_complex::resize (const dim_vector& dv, bool fill) const
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211 {
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212 if (fill)
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213 {
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214 FloatComplexNDArray retval (dv, FloatComplexNDArray::resize_fill_value ());
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215
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216 if (dv.numel ())
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217 retval(0) = scalar;
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218
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219 return retval;
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220 }
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221 else
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222 {
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223 FloatComplexNDArray retval (dv);
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224
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225 if (dv.numel ())
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226 retval(0) = scalar;
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227
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228 return retval;
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229 }
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230 }
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231
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232 bool
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233 octave_float_complex::save_ascii (std::ostream& os)
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234 {
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235 FloatComplex c = float_complex_value ();
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236
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237 octave_write_float_complex (os, c);
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238
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239 os << "\n";
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240
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241 return true;
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242 }
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243
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244 bool
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245 octave_float_complex::load_ascii (std::istream& is)
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246 {
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247 scalar = octave_read_value<FloatComplex> (is);
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248
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249 if (!is)
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250 {
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251 error ("load: failed to load complex scalar constant");
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252 return false;
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253 }
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254
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255 return true;
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256 }
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257
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258
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259 bool
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260 octave_float_complex::save_binary (std::ostream& os, bool& /* save_as_floats */)
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261 {
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262 char tmp = static_cast<char> (LS_FLOAT);
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263 os.write (reinterpret_cast<char *> (&tmp), 1);
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264 FloatComplex ctmp = float_complex_value ();
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265 os.write (reinterpret_cast<char *> (&ctmp), 8);
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266
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267 return true;
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268 }
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269
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270 bool
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271 octave_float_complex::load_binary (std::istream& is, bool swap,
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272 oct_mach_info::float_format fmt)
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273 {
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274 char tmp;
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275 if (! is.read (reinterpret_cast<char *> (&tmp), 1))
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276 return false;
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277
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278 FloatComplex ctmp;
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279 read_floats (is, reinterpret_cast<float *> (&ctmp),
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280 static_cast<save_type> (tmp), 2, swap, fmt);
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281 if (error_state || ! is)
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282 return false;
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283
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284 scalar = ctmp;
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285 return true;
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286 }
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287
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288 #if defined (HAVE_HDF5)
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289
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290 bool
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291 octave_float_complex::save_hdf5 (hid_t loc_id, const char *name,
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292 bool /* save_as_floats */)
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293 {
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294 hsize_t dimens[3];
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295 hid_t space_hid = -1, type_hid = -1, data_hid = -1;
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296 bool retval = true;
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297
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298 space_hid = H5Screate_simple (0, dimens, 0);
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299 if (space_hid < 0)
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300 return false;
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301
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302 type_hid = hdf5_make_complex_type (H5T_NATIVE_FLOAT);
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303 if (type_hid < 0)
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304 {
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305 H5Sclose (space_hid);
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306 return false;
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307 }
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308 #if HAVE_HDF5_18
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309 data_hid = H5Dcreate (loc_id, name, type_hid, space_hid,
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310 H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
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311 #else
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312 data_hid = H5Dcreate (loc_id, name, type_hid, space_hid, H5P_DEFAULT);
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313 #endif
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314 if (data_hid < 0)
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315 {
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316 H5Sclose (space_hid);
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317 H5Tclose (type_hid);
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318 return false;
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319 }
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320
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321 FloatComplex tmp = float_complex_value ();
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322 retval = H5Dwrite (data_hid, type_hid, H5S_ALL, H5S_ALL, H5P_DEFAULT,
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323 &tmp) >= 0;
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324
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325 H5Dclose (data_hid);
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326 H5Tclose (type_hid);
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327 H5Sclose (space_hid);
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328
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329 return retval;
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330 }
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331
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332 bool
9881
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Kacper Kowalik
parents: 9825
diff changeset
333 octave_float_complex::load_hdf5 (hid_t loc_id, const char *name)
7789
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334 {
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335 bool retval = false;
9892
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diff changeset
336 #if HAVE_HDF5_18
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337 hid_t data_hid = H5Dopen (loc_id, name, H5P_DEFAULT);
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338 #else
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339 hid_t data_hid = H5Dopen (loc_id, name);
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340 #endif
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341 hid_t type_hid = H5Dget_type (data_hid);
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342
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343 hid_t complex_type = hdf5_make_complex_type (H5T_NATIVE_FLOAT);
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344
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345 if (! hdf5_types_compatible (type_hid, complex_type))
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346 {
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347 H5Tclose (complex_type);
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348 H5Dclose (data_hid);
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349 return false;
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350 }
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351
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352 hid_t space_id = H5Dget_space (data_hid);
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353 hsize_t rank = H5Sget_simple_extent_ndims (space_id);
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354
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355 if (rank != 0)
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356 {
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357 H5Tclose (complex_type);
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358 H5Sclose (space_id);
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359 H5Dclose (data_hid);
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360 return false;
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361 }
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362
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363 // complex scalar:
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364 FloatComplex ctmp;
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365 if (H5Dread (data_hid, complex_type, H5S_ALL, H5S_ALL, H5P_DEFAULT,
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366 &ctmp) >= 0)
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367 {
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368 retval = true;
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369 scalar = ctmp;
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370 }
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371
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372 H5Tclose (complex_type);
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373 H5Sclose (space_id);
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374 H5Dclose (data_hid);
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375
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376 return retval;
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377 }
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378
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379 #endif
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380
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381 mxArray *
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382 octave_float_complex::as_mxArray (void) const
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383 {
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384 mxArray *retval = new mxArray (mxSINGLE_CLASS, 1, 1, mxCOMPLEX);
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385
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386 float *pr = static_cast<float *> (retval->get_data ());
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387 float *pi = static_cast<float *> (retval->get_imag_data ());
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388
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389 pr[0] = std::real (scalar);
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390 pi[0] = std::imag (scalar);
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391
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392 return retval;
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393 }
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394
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395 octave_value
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396 octave_float_complex::map (unary_mapper_t umap) const
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397 {
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398 switch (umap)
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399 {
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400 #define SCALAR_MAPPER(UMAP, FCN) \
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401 case umap_ ## UMAP: \
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402 return octave_value (FCN (scalar))
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403
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404 SCALAR_MAPPER (abs, std::abs);
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405 SCALAR_MAPPER (acos, ::acos);
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406 SCALAR_MAPPER (acosh, ::acosh);
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407 SCALAR_MAPPER (angle, std::arg);
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408 SCALAR_MAPPER (arg, std::arg);
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409 SCALAR_MAPPER (asin, ::asin);
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410 SCALAR_MAPPER (asinh, ::asinh);
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411 SCALAR_MAPPER (atan, ::atan);
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412 SCALAR_MAPPER (atanh, ::atanh);
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413 SCALAR_MAPPER (ceil, ::ceil);
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414 SCALAR_MAPPER (conj, std::conj);
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415 SCALAR_MAPPER (cos, std::cos);
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416 SCALAR_MAPPER (cosh, std::cosh);
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417 SCALAR_MAPPER (exp, std::exp);
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418 SCALAR_MAPPER (expm1, ::expm1);
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419 SCALAR_MAPPER (fix, ::fix);
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420 SCALAR_MAPPER (floor, ::floor);
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421 SCALAR_MAPPER (imag, std::imag);
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422 SCALAR_MAPPER (log, std::log);
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423 SCALAR_MAPPER (log2, xlog2);
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424 SCALAR_MAPPER (log10, std::log10);
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425 SCALAR_MAPPER (log1p, ::log1p);
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426 SCALAR_MAPPER (real, std::real);
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427 SCALAR_MAPPER (round, xround);
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428 SCALAR_MAPPER (roundb, xroundb);
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429 SCALAR_MAPPER (signum, ::signum);
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430 SCALAR_MAPPER (sin, std::sin);
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431 SCALAR_MAPPER (sinh, std::sinh);
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432 SCALAR_MAPPER (sqrt, std::sqrt);
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433 SCALAR_MAPPER (tan, std::tan);
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434 SCALAR_MAPPER (tanh, std::tanh);
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diff changeset
435 SCALAR_MAPPER (finite, xfinite);
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diff changeset
436 SCALAR_MAPPER (isinf, xisinf);
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diff changeset
437 SCALAR_MAPPER (isna, octave_is_NA);
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diff changeset
438 SCALAR_MAPPER (isnan, xisnan);
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diff changeset
439
9812
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diff changeset
440 default:
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441 return octave_base_value::map (umap);
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442 }
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diff changeset
443 }