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annotate src/ov-flt-cx-diag.cc @ 13741:b0e70a71647b stable release-3-4-3

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Version 3.4.3 released. * configure.ac (AC_INIT): Version number is now 3.4.3. (OCTAVE_RELEASE_DATE): Update to 2011-10-10.
author John W. Eaton <jwe@octave.org>
date Mon, 10 Oct 2011 10:23:45 -0400
parents 12df7854fa7c
children 72c96de7a403
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1 /*
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2
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3 Copyright (C) 2008-2011 Jaroslav Hajek
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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 "byte-swap.h"
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28
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29 #include "ov-flt-cx-diag.h"
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30 #include "ov-base-diag.cc"
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31 #include "ov-flt-re-diag.h"
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32 #include "ov-flt-complex.h"
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33 #include "ov-flt-cx-mat.h"
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34 #include "ls-utils.h"
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35
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36 template class octave_base_diag<FloatComplexDiagMatrix, FloatComplexMatrix>;
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37
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38 DEFINE_OCTAVE_ALLOCATOR (octave_float_complex_diag_matrix);
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39
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40 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_float_complex_diag_matrix,
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41 "float complex diagonal matrix", "single");
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42
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43 static octave_base_value *
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44 default_numeric_conversion_function (const octave_base_value& a)
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45 {
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46 CAST_CONV_ARG (const octave_float_complex_diag_matrix&);
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47
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48 return new octave_float_complex_matrix (v.float_complex_matrix_value ());
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49 }
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50
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51 octave_base_value::type_conv_info
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52 octave_float_complex_diag_matrix::numeric_conversion_function (void) const
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53 {
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54 return octave_base_value::type_conv_info (default_numeric_conversion_function,
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55 octave_float_complex_matrix::static_type_id ());
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56 }
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57
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58 octave_base_value *
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59 octave_float_complex_diag_matrix::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 if (matrix.nelem () == 1)
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64 {
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65 retval = new octave_float_complex (matrix (0, 0));
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66 octave_base_value *rv2 = retval->try_narrowing_conversion ();
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67 if (rv2)
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68 {
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69 delete retval;
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70 retval = rv2;
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71 }
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72 }
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73 else if (matrix.all_elements_are_real ())
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74 {
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75 return new octave_float_diag_matrix (::real (matrix));
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76 }
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77
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78 return retval;
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79 }
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80
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81 DiagMatrix
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82 octave_float_complex_diag_matrix::diag_matrix_value (bool force_conversion) const
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83 {
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84 DiagMatrix retval;
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85
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86 if (! force_conversion)
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87 gripe_implicit_conversion ("Octave:imag-to-real",
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88 type_name (), "real matrix");
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89
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90 retval = ::real (matrix);
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91
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92 return retval;
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93 }
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94
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95 FloatDiagMatrix
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96 octave_float_complex_diag_matrix::float_diag_matrix_value (bool force_conversion) const
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97 {
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98 DiagMatrix retval;
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99
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100 if (! force_conversion)
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101 gripe_implicit_conversion ("Octave:imag-to-real",
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102 type_name (), "real matrix");
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103
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104 retval = ::real (matrix);
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105
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106 return retval;
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107 }
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108
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109 ComplexDiagMatrix
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110 octave_float_complex_diag_matrix::complex_diag_matrix_value (bool) const
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111 {
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112 return ComplexDiagMatrix (matrix);
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113 }
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114
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115 FloatComplexDiagMatrix
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116 octave_float_complex_diag_matrix::float_complex_diag_matrix_value (bool) const
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117 {
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118 return matrix;
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119 }
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120
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121 octave_value
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122 octave_float_complex_diag_matrix::map (unary_mapper_t umap) const
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123 {
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124 switch (umap)
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125 {
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126 case umap_abs:
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127 return matrix.abs ();
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128 case umap_real:
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129 return ::real (matrix);
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130 case umap_conj:
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131 return ::conj (matrix);
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132 case umap_imag:
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133 return ::imag (matrix);
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134 case umap_sqrt:
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135 {
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136 FloatComplexColumnVector tmp = matrix.diag ().map<FloatComplex> (std::sqrt);
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137 FloatComplexDiagMatrix retval (tmp);
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138 retval.resize (matrix.rows (), matrix.columns ());
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139 return retval;
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140 }
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141 default:
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142 return to_dense ().map (umap);
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143 }
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144 }
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145
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146
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147 bool
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148 octave_float_complex_diag_matrix::save_binary (std::ostream& os,
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149 bool& /* save_as_floats */)
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150 {
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151
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152 int32_t r = matrix.rows (), c = matrix.cols ();
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153 os.write (reinterpret_cast<char *> (&r), 4);
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154 os.write (reinterpret_cast<char *> (&c), 4);
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155
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156 FloatComplexMatrix m = FloatComplexMatrix (matrix.diag ());
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157 save_type st = LS_FLOAT;
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158 if (matrix.length () > 4096) // FIXME -- make this configurable.
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159 {
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160 float max_val, min_val;
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161 if (m.all_integers (max_val, min_val))
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162 st = get_save_type (max_val, min_val);
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163 }
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164
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165 const FloatComplex *mtmp = m.data ();
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166 write_floats (os, reinterpret_cast<const float *> (mtmp), st, 2 * m.numel ());
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167
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168 return true;
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169 }
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170
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171 bool
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172 octave_float_complex_diag_matrix::load_binary (std::istream& is, bool swap,
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173 oct_mach_info::float_format fmt)
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174 {
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175 int32_t r, c;
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176 char tmp;
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177 if (! (is.read (reinterpret_cast<char *> (&r), 4)
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178 && is.read (reinterpret_cast<char *> (&c), 4)
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179 && is.read (reinterpret_cast<char *> (&tmp), 1)))
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180 return false;
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181 if (swap)
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182 {
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183 swap_bytes<4> (&r);
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184 swap_bytes<4> (&c);
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185 }
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186
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187 FloatComplexDiagMatrix m (r, c);
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188 FloatComplex *re = m.fortran_vec ();
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189 octave_idx_type len = m.length ();
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190 read_floats (is, reinterpret_cast<float *> (re),
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191 static_cast<save_type> (tmp), 2 * len, swap, fmt);
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192 if (error_state || ! is)
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193 return false;
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194 matrix = m;
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195
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196 return true;
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197 }
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198
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199 bool
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200 octave_float_complex_diag_matrix::chk_valid_scalar (const octave_value& val,
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201 FloatComplex& x) const
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202 {
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203 bool retval = val.is_complex_scalar () || val.is_real_scalar ();
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204 if (retval)
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205 x = val.float_complex_value ();
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206 return retval;
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207 }