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annotate src/ov-base-diag.cc @ 8366:8b1a2555c4e2

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implement diagonal matrix objects * * *
author Jaroslav Hajek <highegg@gmail.com>
date Wed, 03 Dec 2008 13:32:57 +0100
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children 445d27d79f4e
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8366
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1 /*
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2
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3 Copyright (C) 2008 Jaroslav Hajek <highegg@gmail.com>
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #ifdef HAVE_CONFIG_H
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24 #include <config.h>
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25 #endif
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26
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27 #include <iostream>
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28
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29 #include "mach-info.h"
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30
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31 #include "ov-base.h"
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32 #include "ov-base-mat.h"
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33 #include "pr-output.h"
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34 #include "error.h"
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35 #include "gripes.h"
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36 #include "oct-stream.h"
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37 #include "ops.h"
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38
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39 template <class DMT, class MT>
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40 octave_value
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41 octave_base_diag<DMT, MT>::subsref (const std::string& type,
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42 const std::list<octave_value_list>& idx)
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43 {
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44 octave_value retval;
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45
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46 switch (type[0])
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47 {
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48 case '(':
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49 retval = do_index_op (idx.front ());
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50 break;
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51
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52 case '{':
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53 case '.':
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54 {
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55 std::string nm = type_name ();
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56 error ("%s cannot be indexed with %c", nm.c_str (), type[0]);
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57 }
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58 break;
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59
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60 default:
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61 panic_impossible ();
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62 }
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63
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64 return retval.next_subsref (type, idx);
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65 }
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66
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67 template <class DMT, class MT>
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68 octave_value
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69 octave_base_diag<DMT, MT>::do_index_op (const octave_value_list& idx,
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70 bool resize_ok)
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71 {
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72 octave_value retval;
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73
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74 if (idx.length () == 2 && idx(0).is_scalar_type ()
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75 && idx(1).is_scalar_type () && ! resize_ok)
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76 {
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77 idx_vector i = idx(0).index_vector (), j = idx(1).index_vector ();
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78 // FIXME: the proxy mechanism of DiagArray2 causes problems here.
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79 typedef typename DMT::element_type el_type;
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80 if (! error_state)
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81 retval = el_type (matrix.checkelem (i(0), j(0)));
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82 }
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83 else
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84 retval = to_dense ().do_index_op (idx, resize_ok);
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85 return retval;
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86 }
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87
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88 template <class DMT, class MT>
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89 octave_value
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90 octave_base_diag<DMT, MT>::resize (const dim_vector& dv, bool fill) const
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91 {
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92 octave_value retval;
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93 if (dv.length () == 2)
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94 {
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95 DMT rm (matrix);
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96 rm.resize (dv(0), dv(1));
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97 retval = rm;
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98 }
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99 else
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100 retval = to_dense ().resize (dv, fill);
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101 return retval;
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102 }
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103
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104 template <class DMT, class MT>
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105 bool
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106 octave_base_diag<DMT, MT>::is_true (void) const
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107 {
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108 return to_dense ().is_true ();
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109 }
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110
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111 template <class DMT, class MT>
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112 bool
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113 octave_base_diag<DMT, MT>::valid_as_scalar_index (void) const
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114 {
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115 // FIXME
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116 return false;
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117 }
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118
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119 // FIXME: this should be achieveable using ::real
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120 template <class T> inline T helper_getreal (T x) { return x; }
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121 template <class T> inline T helper_getreal (std::complex<T> x) { return x.real (); }
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122 // FIXME: we really need some traits so that ad hoc hooks like this are not necessary
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123 template <class T> inline T helper_iscomplex (T) { return false; }
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124 template <class T> inline T helper_iscomplex (std::complex<T>) { return true; }
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125
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126 template <class DMT, class MT>
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127 double
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128 octave_base_diag<DMT, MT>::double_value (bool force_conversion) const
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129 {
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130 double retval = lo_ieee_nan_value ();
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131 typedef typename DMT::element_type el_type;
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132
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133 if (helper_iscomplex (el_type ()) && ! force_conversion)
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134 gripe_implicit_conversion ("Octave:imag-to-real",
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135 "complex matrix", "real scalar");
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136
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137 if (numel () > 0)
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138 {
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139 gripe_implicit_conversion ("Octave:array-as-scalar",
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140 type_name (), "real scalar");
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141
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142 retval = helper_getreal (el_type (matrix (0, 0)));
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143 }
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144 else
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145 gripe_invalid_conversion (type_name (), "real scalar");
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146
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147 return retval;
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148 }
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149
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150 template <class DMT, class MT>
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151 float
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152 octave_base_diag<DMT, MT>::float_value (bool force_conversion) const
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153 {
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154 float retval = lo_ieee_float_nan_value ();
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155 typedef typename DMT::element_type el_type;
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156
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157 if (helper_iscomplex (el_type ()) && ! force_conversion)
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158 gripe_implicit_conversion ("Octave:imag-to-real",
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159 "complex matrix", "real scalar");
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160
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161 if (numel () > 0)
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162 {
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163 gripe_implicit_conversion ("Octave:array-as-scalar",
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164 type_name (), "real scalar");
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165
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166 retval = helper_getreal (el_type (matrix (0, 0)));
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167 }
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168 else
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169 gripe_invalid_conversion (type_name (), "real scalar");
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170
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171 return retval;
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172 }
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173
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174 template <class DMT, class MT>
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175 Complex
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176 octave_base_diag<DMT, MT>::complex_value (bool) const
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177 {
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178 double tmp = lo_ieee_nan_value ();
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179
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180 Complex retval (tmp, tmp);
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181
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182 if (rows () > 0 && columns () > 0)
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183 {
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184 gripe_implicit_conversion ("Octave:array-as-scalar",
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185 type_name (), "complex scalar");
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186
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187 retval = matrix (0, 0);
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188 }
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189 else
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190 gripe_invalid_conversion (type_name (), "complex scalar");
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191
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192 return retval;
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193 }
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194
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195 template <class DMT, class MT>
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196 FloatComplex
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197 octave_base_diag<DMT, MT>::float_complex_value (bool) const
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198 {
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199 float tmp = lo_ieee_float_nan_value ();
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200
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201 FloatComplex retval (tmp, tmp);
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202
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203 if (rows () > 0 && columns () > 0)
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204 {
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205 gripe_implicit_conversion ("Octave:array-as-scalar",
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206 type_name (), "complex scalar");
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207
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208 retval = matrix (0, 0);
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209 }
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210 else
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211 gripe_invalid_conversion (type_name (), "complex scalar");
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212
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213 return retval;
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214 }
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215
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216 template <class DMT, class MT>
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217 Matrix
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218 octave_base_diag<DMT, MT>::matrix_value (bool) const
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219 {
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220 return Matrix (diag_matrix_value ());
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221 }
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222
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223 template <class DMT, class MT>
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224 FloatMatrix
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225 octave_base_diag<DMT, MT>::float_matrix_value (bool) const
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226 {
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227 return FloatMatrix (float_diag_matrix_value ());
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228 }
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229
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230 template <class DMT, class MT>
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231 ComplexMatrix
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232 octave_base_diag<DMT, MT>::complex_matrix_value (bool) const
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233 {
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234 return ComplexMatrix (complex_diag_matrix_value ());
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235 }
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236
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237 template <class DMT, class MT>
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238 FloatComplexMatrix
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239 octave_base_diag<DMT, MT>::float_complex_matrix_value (bool) const
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240 {
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241 return FloatComplexMatrix (float_complex_diag_matrix_value ());
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242 }
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243
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244 template <class DMT, class MT>
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245 NDArray
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246 octave_base_diag<DMT, MT>::array_value (bool) const
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247 {
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248 return NDArray (matrix_value ());
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249 }
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250
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251 template <class DMT, class MT>
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252 FloatNDArray
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253 octave_base_diag<DMT, MT>::float_array_value (bool) const
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254 {
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255 return FloatNDArray (float_matrix_value ());
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256 }
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257
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258 template <class DMT, class MT>
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259 ComplexNDArray
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260 octave_base_diag<DMT, MT>::complex_array_value (bool) const
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261 {
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262 return ComplexNDArray (complex_matrix_value ());
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263 }
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264
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265 template <class DMT, class MT>
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266 FloatComplexNDArray
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267 octave_base_diag<DMT, MT>::float_complex_array_value (bool) const
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268 {
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269 return FloatComplexNDArray (float_complex_matrix_value ());
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270 }
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271
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272 template <class DMT, class MT>
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273 boolNDArray
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274 octave_base_diag<DMT, MT>::bool_array_value (bool warn) const
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275 {
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276 return to_dense ().bool_array_value (warn);
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277 }
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278
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279 template <class DMT, class MT>
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280 charNDArray
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281 octave_base_diag<DMT, MT>::char_array_value (bool warn) const
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282 {
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283 return to_dense ().char_array_value (warn);
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284 }
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285
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286 template <class DMT, class MT>
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287 SparseMatrix
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288 octave_base_diag<DMT, MT>::sparse_matrix_value (bool) const
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289 {
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290 return SparseMatrix (diag_matrix_value ());
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291 }
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292
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293 template <class DMT, class MT>
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294 SparseComplexMatrix
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295 octave_base_diag<DMT, MT>::sparse_complex_matrix_value (bool) const
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296 {
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297 return SparseComplexMatrix (complex_diag_matrix_value ());
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298 }
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299
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300 template <class DMT, class MT>
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301 idx_vector
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302 octave_base_diag<DMT, MT>::index_vector (void) const
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303 {
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304 return to_dense ().index_vector ();
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305 }
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306
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307 template <class DMT, class MT>
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308 octave_value
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309 octave_base_diag<DMT, MT>::convert_to_str_internal (bool pad, bool force, char type) const
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310 {
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311 return to_dense ().convert_to_str_internal (pad, force, type);
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312 }
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313
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314 template <class DMT, class MT>
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315 bool
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316 octave_base_diag<DMT, MT>::save_ascii (std::ostream& os)
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317 {
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318 // FIXME: this should probably save the matrix as diagonal.
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319 return to_dense ().save_ascii (os);
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320 }
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321
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322 template <class DMT, class MT>
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323 bool
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324 octave_base_diag<DMT, MT>::save_binary (std::ostream& os, bool& save_as_floats)
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325 {
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326 return to_dense ().save_binary (os, save_as_floats);
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327 }
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328
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329 #if defined (HAVE_HDF5)
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330
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331 template <class DMT, class MT>
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332 bool
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333 octave_base_diag<DMT, MT>::save_hdf5 (hid_t loc_id, const char *name, bool save_as_floats)
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334 {
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335 return to_dense ().save_hdf5 (loc_id, name, save_as_floats);
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336 }
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337
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338 #endif
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339
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340 template <class DMT, class MT>
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341 void
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342 octave_base_diag<DMT, MT>::print_raw (std::ostream& os,
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343 bool pr_as_read_syntax) const
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344 {
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345 return to_dense ().print_raw (os, pr_as_read_syntax);
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346 }
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347
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348 template <class DMT, class MT>
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349 mxArray *
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350 octave_base_diag<DMT, MT>::as_mxArray (void) const
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351 {
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352 return to_dense ().as_mxArray ();
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353 }
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354
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355 template <class DMT, class MT>
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356 bool
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357 octave_base_diag<DMT, MT>::print_as_scalar (void) const
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358 {
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359 dim_vector dv = dims ();
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360
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361 return (dv.all_ones () || dv.any_zero ());
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362 }
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363
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364 template <class DMT, class MT>
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365 void
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366 octave_base_diag<DMT, MT>::print (std::ostream& os, bool pr_as_read_syntax) const
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367 {
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368 to_dense ().print (os, pr_as_read_syntax);
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369 }
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370 template <class DMT, class MT>
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371 int
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372 octave_base_diag<DMT, MT>::write (octave_stream& os, int block_size,
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373 oct_data_conv::data_type output_type, int skip,
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374 oct_mach_info::float_format flt_fmt) const
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375 {
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376 return to_dense ().write (os, block_size, output_type, skip, flt_fmt);
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377 }
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378
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379 template <class DMT, class MT>
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380 void
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381 octave_base_diag<DMT, MT>::print_info (std::ostream& os,
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382 const std::string& prefix) const
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383 {
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384 matrix.print_info (os, prefix);
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385 }
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386
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387 template <class DMT, class MT>
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388 octave_value
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389 octave_base_diag<DMT, MT>::to_dense (void) const
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390 {
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391 if (! dense_cache.is_defined ())
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392 dense_cache = MT (matrix);
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393
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394 return dense_cache;
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395 }
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396
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397 #define FORWARD_MAPPER(MAP) \
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398 template <class DMT, class MT> \
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399 octave_value \
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400 octave_base_diag<DMT, MT>::MAP (void) const \
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401 { \
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402 return to_dense ().MAP (); \
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403 }
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404
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405 FORWARD_MAPPER (erf)
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406 FORWARD_MAPPER (erfc)
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407 FORWARD_MAPPER (gamma)
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408 FORWARD_MAPPER (lgamma)
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409 FORWARD_MAPPER (acos)
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410 FORWARD_MAPPER (acosh)
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411 FORWARD_MAPPER (angle)
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412 FORWARD_MAPPER (arg)
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413 FORWARD_MAPPER (asin)
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414 FORWARD_MAPPER (asinh)
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415 FORWARD_MAPPER (atan)
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416 FORWARD_MAPPER (atanh)
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417 FORWARD_MAPPER (ceil)
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418 FORWARD_MAPPER (cos)
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419 FORWARD_MAPPER (cosh)
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420 FORWARD_MAPPER (exp)
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421 FORWARD_MAPPER (expm1)
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422 FORWARD_MAPPER (fix)
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423 FORWARD_MAPPER (floor)
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424 FORWARD_MAPPER (log)
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425 FORWARD_MAPPER (log2)
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426 FORWARD_MAPPER (log10)
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427 FORWARD_MAPPER (log1p)
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428 FORWARD_MAPPER (round)
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429 FORWARD_MAPPER (roundb)
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430 FORWARD_MAPPER (signum)
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431 FORWARD_MAPPER (sin)
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432 FORWARD_MAPPER (sinh)
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433 FORWARD_MAPPER (sqrt)
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434 FORWARD_MAPPER (tan)
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435 FORWARD_MAPPER (tanh)
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436 FORWARD_MAPPER (finite)
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437 FORWARD_MAPPER (isinf)
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438 FORWARD_MAPPER (isna)
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439 FORWARD_MAPPER (isnan)
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440