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annotate src/ov-flt-complex.cc @ 8870:eea0e1b45ec0

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optimize string manipulation in lookfor
author Jaroslav Hajek <highegg@gmail.com>
date Wed, 25 Feb 2009 10:21:33 +0100
parents f00578b495e9
children eb63fbe60fab
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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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4 2006, 2007 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 && ! lo_ieee_signbit (im))
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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_float_complex (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
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309 data_hid = H5Dcreate (loc_id, name, type_hid, space_hid, H5P_DEFAULT);
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310 if (data_hid < 0)
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311 {
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312 H5Sclose (space_hid);
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313 H5Tclose (type_hid);
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314 return false;
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315 }
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316
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317 FloatComplex tmp = float_complex_value ();
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318 retval = H5Dwrite (data_hid, type_hid, H5S_ALL, H5S_ALL, H5P_DEFAULT,
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319 &tmp) >= 0;
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320
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321 H5Dclose (data_hid);
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322 H5Tclose (type_hid);
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323 H5Sclose (space_hid);
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324
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325 return retval;
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326 }
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327
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328 bool
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329 octave_float_complex::load_hdf5 (hid_t loc_id, const char *name,
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330 bool /* have_h5giterate_bug */)
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diff changeset
331 {
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332 bool retval = false;
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333 hid_t data_hid = H5Dopen (loc_id, name);
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334 hid_t type_hid = H5Dget_type (data_hid);
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335
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336 hid_t complex_type = hdf5_make_complex_type (H5T_NATIVE_FLOAT);
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diff changeset
337
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338 if (! hdf5_types_compatible (type_hid, complex_type))
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diff changeset
339 {
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340 H5Tclose (complex_type);
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diff changeset
341 H5Dclose (data_hid);
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342 return false;
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343 }
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344
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345 hid_t space_id = H5Dget_space (data_hid);
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346 hsize_t rank = H5Sget_simple_extent_ndims (space_id);
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diff changeset
347
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parents:
diff changeset
348 if (rank != 0)
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parents:
diff changeset
349 {
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parents:
diff changeset
350 H5Tclose (complex_type);
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parents:
diff changeset
351 H5Sclose (space_id);
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parents:
diff changeset
352 H5Dclose (data_hid);
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353 return false;
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parents:
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354 }
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355
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356 // complex scalar:
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357 FloatComplex ctmp;
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358 if (H5Dread (data_hid, complex_type, H5S_ALL, H5S_ALL, H5P_DEFAULT,
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359 &ctmp) >= 0)
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parents:
diff changeset
360 {
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361 retval = true;
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parents:
diff changeset
362 scalar = ctmp;
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parents:
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363 }
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parents:
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364
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365 H5Tclose (complex_type);
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parents:
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366 H5Sclose (space_id);
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parents:
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367 H5Dclose (data_hid);
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368
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369 return retval;
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370 }
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371
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372 #endif
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373
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parents:
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374 mxArray *
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parents:
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375 octave_float_complex::as_mxArray (void) const
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parents:
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376 {
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parents:
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377 mxArray *retval = new mxArray (mxSINGLE_CLASS, 1, 1, mxCOMPLEX);
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378
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parents:
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379 float *pr = static_cast<float *> (retval->get_data ());
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parents:
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380 float *pi = static_cast<float *> (retval->get_imag_data ());
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parents:
diff changeset
381
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parents:
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382 pr[0] = std::real (scalar);
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parents:
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383 pi[0] = std::imag (scalar);
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parents:
diff changeset
384
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parents:
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385 return retval;
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parents:
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386 }
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parents:
diff changeset
387
82be108cc558 First attempt at single precision tyeps
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parents:
diff changeset
388 static float
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parents:
diff changeset
389 xabs (const FloatComplex& x)
82be108cc558 First attempt at single precision tyeps
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parents:
diff changeset
390 {
82be108cc558 First attempt at single precision tyeps
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parents:
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391 return (xisinf (x.real ()) || xisinf (x.imag ())) ? octave_Inf : abs (x);
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parents:
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392 }
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parents:
diff changeset
393
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parents:
diff changeset
394 static float
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parents:
diff changeset
395 ximag (const FloatComplex& x)
82be108cc558 First attempt at single precision tyeps
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parents:
diff changeset
396 {
82be108cc558 First attempt at single precision tyeps
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parents:
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397 return x.imag ();
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parents:
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398 }
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parents:
diff changeset
399
82be108cc558 First attempt at single precision tyeps
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parents:
diff changeset
400 static float
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parents:
diff changeset
401 xreal (const FloatComplex& x)
82be108cc558 First attempt at single precision tyeps
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parents:
diff changeset
402 {
82be108cc558 First attempt at single precision tyeps
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parents:
diff changeset
403 return x.real ();
82be108cc558 First attempt at single precision tyeps
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parents:
diff changeset
404 }
82be108cc558 First attempt at single precision tyeps
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parents:
diff changeset
405
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parents:
diff changeset
406 #define COMPLEX_MAPPER(MAP, FCN) \
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parents:
diff changeset
407 octave_value \
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parents:
diff changeset
408 octave_float_complex::MAP (void) const \
82be108cc558 First attempt at single precision tyeps
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parents:
diff changeset
409 { \
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David Bateman <dbateman@free.fr>
parents:
diff changeset
410 return octave_value (FCN (scalar)); \
82be108cc558 First attempt at single precision tyeps
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parents:
diff changeset
411 }
82be108cc558 First attempt at single precision tyeps
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parents:
diff changeset
412
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parents:
diff changeset
413 #define SCALAR_MAPPER(MAP, FCN) \
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parents:
diff changeset
414 octave_value \
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parents:
diff changeset
415 octave_float_complex::MAP (void) const \
82be108cc558 First attempt at single precision tyeps
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parents:
diff changeset
416 { \
82be108cc558 First attempt at single precision tyeps
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parents:
diff changeset
417 if (scalar.imag () == 0) \
82be108cc558 First attempt at single precision tyeps
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parents:
diff changeset
418 return octave_value (FCN (scalar.real ())); \
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parents:
diff changeset
419 else \
82be108cc558 First attempt at single precision tyeps
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parents:
diff changeset
420 { \
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parents:
diff changeset
421 error ("%s: not defined for complex arguments", #MAP); \
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parents:
diff changeset
422 return octave_value (); \
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parents:
diff changeset
423 } \
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parents:
diff changeset
424 }
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parents:
diff changeset
425
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parents:
diff changeset
426 #define CD_SCALAR_MAPPER(MAP, RFCN, CFCN, L1, L2) \
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parents:
diff changeset
427 octave_value \
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parents:
diff changeset
428 octave_float_complex::MAP (void) const \
82be108cc558 First attempt at single precision tyeps
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parents:
diff changeset
429 { \
82be108cc558 First attempt at single precision tyeps
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parents:
diff changeset
430 if (scalar.imag () == 0) \
82be108cc558 First attempt at single precision tyeps
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parents:
diff changeset
431 { \
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parents:
diff changeset
432 float re = scalar.real (); \
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parents:
diff changeset
433 return (re < L1 || re > L2 \
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parents:
diff changeset
434 ? octave_value (CFCN (scalar)) \
82be108cc558 First attempt at single precision tyeps
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parents:
diff changeset
435 : octave_value (RFCN (re))); \
82be108cc558 First attempt at single precision tyeps
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parents:
diff changeset
436 } \
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parents:
diff changeset
437 else \
82be108cc558 First attempt at single precision tyeps
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parents:
diff changeset
438 { \
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
439 error ("%s: not defined for complex arguments", #MAP); \
82be108cc558 First attempt at single precision tyeps
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parents:
diff changeset
440 return octave_value (); \
82be108cc558 First attempt at single precision tyeps
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parents:
diff changeset
441 } \
82be108cc558 First attempt at single precision tyeps
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parents:
diff changeset
442 }
82be108cc558 First attempt at single precision tyeps
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parents:
diff changeset
443
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
444 SCALAR_MAPPER (erf, ::erff)
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
445 SCALAR_MAPPER (erfc, ::erfcf)
7789
82be108cc558 First attempt at single precision tyeps
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parents:
diff changeset
446 SCALAR_MAPPER (gamma, xgamma)
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parents:
diff changeset
447 CD_SCALAR_MAPPER (lgamma, xlgamma, xlgamma, 0.0, octave_Inf)
82be108cc558 First attempt at single precision tyeps
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parents:
diff changeset
448
82be108cc558 First attempt at single precision tyeps
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parents:
diff changeset
449 COMPLEX_MAPPER (abs, xabs)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
450 COMPLEX_MAPPER (acos, ::acos)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
451 COMPLEX_MAPPER (acosh, ::acosh)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
452 COMPLEX_MAPPER (angle, std::arg)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
453 COMPLEX_MAPPER (arg, std::arg)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
454 COMPLEX_MAPPER (asin, ::asin)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
455 COMPLEX_MAPPER (asinh, ::asinh)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
456 COMPLEX_MAPPER (atan, ::atan)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
457 COMPLEX_MAPPER (atanh, ::atanh)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
458 COMPLEX_MAPPER (ceil, ::ceil)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
459 COMPLEX_MAPPER (conj, std::conj)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
460 COMPLEX_MAPPER (cos, std::cos)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
461 COMPLEX_MAPPER (cosh, std::cosh)
82be108cc558 First attempt at single precision tyeps
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parents:
diff changeset
462 COMPLEX_MAPPER (exp, std::exp)
7815
a41df65f3f00 Add some single precision test code and fix resulting bugs
David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
463 COMPLEX_MAPPER (expm1, ::expm1f)
7789
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David Bateman <dbateman@free.fr>
parents:
diff changeset
464 COMPLEX_MAPPER (fix, ::fix)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
465 COMPLEX_MAPPER (floor, ::floor)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
466 COMPLEX_MAPPER (imag, ximag)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
467 COMPLEX_MAPPER (log, std::log)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
468 COMPLEX_MAPPER (log2, xlog2)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
469 COMPLEX_MAPPER (log10, std::log10)
7815
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David Bateman <dbateman@free.fr>
parents: 7789
diff changeset
470 COMPLEX_MAPPER (log1p, ::log1pf)
7789
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David Bateman <dbateman@free.fr>
parents:
diff changeset
471 COMPLEX_MAPPER (real, xreal)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
472 COMPLEX_MAPPER (round, xround)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
473 COMPLEX_MAPPER (roundb, xroundb)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
474 COMPLEX_MAPPER (signum, ::signum)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
475 COMPLEX_MAPPER (sin, std::sin)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
476 COMPLEX_MAPPER (sinh, std::sinh)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
477 COMPLEX_MAPPER (sqrt, std::sqrt)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
478 COMPLEX_MAPPER (tan, std::tan)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
479 COMPLEX_MAPPER (tanh, std::tanh)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
480 COMPLEX_MAPPER (finite, xfinite)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
481 COMPLEX_MAPPER (isinf, xisinf)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
482 COMPLEX_MAPPER (isna, octave_is_NA)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
483 COMPLEX_MAPPER (isnan, xisnan)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
484
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
485 /*
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
486 ;;; Local Variables: ***
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
487 ;;; mode: C++ ***
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
488 ;;; End: ***
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents:
diff changeset
489 */