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annotate src/ov-re-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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8366
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1 /*
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2
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3 Copyright (C) 2008 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 "ov-re-diag.h"
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28 #include "ov-flt-re-diag.h"
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29 #include "ov-base-diag.cc"
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30 #include "ov-scalar.h"
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31 #include "ov-re-mat.h"
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32
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33 template class octave_base_diag<DiagMatrix, Matrix>;
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34
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35 DEFINE_OCTAVE_ALLOCATOR (octave_diag_matrix);
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36
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37 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_diag_matrix, "diagonal matrix", "double");
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38
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39 static octave_base_value *
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40 default_numeric_conversion_function (const octave_base_value& a)
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41 {
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42 CAST_CONV_ARG (const octave_diag_matrix&);
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43
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44 return new octave_matrix (v.matrix_value ());
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45 }
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46
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47 octave_base_value::type_conv_info
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48 octave_diag_matrix::numeric_conversion_function (void) const
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49 {
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50 return octave_base_value::type_conv_info (default_numeric_conversion_function,
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51 octave_matrix::static_type_id ());
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52 }
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53
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54 static octave_base_value *
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55 default_numeric_demotion_function (const octave_base_value& a)
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56 {
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57 CAST_CONV_ARG (const octave_diag_matrix&);
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58
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59 return new octave_float_diag_matrix (v.float_diag_matrix_value ());
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60 }
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61
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62 octave_base_value::type_conv_info
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63 octave_diag_matrix::numeric_demotion_function (void) const
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64 {
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65 return octave_base_value::type_conv_info (default_numeric_demotion_function,
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66 octave_float_diag_matrix::static_type_id ());
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67 }
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68
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69 octave_base_value *
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70 octave_diag_matrix::try_narrowing_conversion (void)
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71 {
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72 octave_base_value *retval = 0;
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73
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74 // FIXME: the proxy mechanism of DiagArray2 causes problems here.
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75 if (matrix.nelem () == 1)
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76 retval = new octave_scalar (double (matrix (0, 0)));
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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_diag_matrix::diag_matrix_value (bool) const
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83 {
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84 return matrix;
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85 }
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86
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87 FloatDiagMatrix
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88 octave_diag_matrix::float_diag_matrix_value (bool) const
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89 {
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90 return FloatDiagMatrix (matrix);
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91 }
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92
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93 ComplexDiagMatrix
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94 octave_diag_matrix::complex_diag_matrix_value (bool) const
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95 {
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96 return ComplexDiagMatrix (matrix);
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97 }
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98
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99 FloatComplexDiagMatrix
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100 octave_diag_matrix::float_complex_diag_matrix_value (bool) const
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101 {
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102 return FloatComplexDiagMatrix (matrix);
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103 }
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104
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105 octave_value
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106 octave_diag_matrix::abs (void) const
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107 {
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108 return matrix.abs ();
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109 }
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110
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111 octave_value
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112 octave_diag_matrix::real (void) const
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113 {
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114 return matrix;
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115 }
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116
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117 octave_value
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118 octave_diag_matrix::conj (void) const
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119 {
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120 return matrix;
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121 }
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122
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123 octave_value
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124 octave_diag_matrix::imag (void) const
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125 {
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126 return DiagMatrix (matrix.rows (), matrix.cols ());
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127 }