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further liboctave design improvements
author Jaroslav Hajek <highegg@gmail.com>
date Fri, 04 Sep 2009 11:22:53 +0200
parents eb63fbe60fab
children 4c0cdbe0acca
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1 /*
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2
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3 Copyright (C) 1996, 1997, 2000, 2002, 2003, 2004, 2005, 2007, 2008
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4 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 "MDiagArray2.h"
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29 #include "Array-util.h"
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30 #include "lo-error.h"
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31
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32 #include "MArray-defs.h"
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33
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34 template <class T>
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35 bool
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36 MDiagArray2<T>::is_multiple_of_identity (T val) const
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37 {
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38 bool retval = this->rows () == this->cols ();
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39 if (retval)
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40 {
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41 octave_idx_type len = this->length (), i = 0;
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42 for (;i < len; i++)
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43 if (DiagArray2<T>::elem (i, i) != val) break;
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44 retval = i == len;
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45 }
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46
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47 return retval;
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48 }
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49
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50 // Two dimensional diagonal array with math ops.
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51
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52 // Element by element MDiagArray2 by MDiagArray2 ops.
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53
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54 template <class T>
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55 MDiagArray2<T>&
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56 operator += (MDiagArray2<T>& a, const MDiagArray2<T>& b)
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57 {
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58 if (a.is_shared ())
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59 a = a + b;
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60 else
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61 do_mm_inplace_op<MDiagArray2<T>, MDiagArray2<T> > (a, b, mx_inline_add2, "+=");
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62 return a;
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63 }
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64
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65 template <class T>
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66 MDiagArray2<T>&
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67 operator -= (MDiagArray2<T>& a, const MDiagArray2<T>& b)
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68 {
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69 if (a.is_shared ())
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70 a = a - b;
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71 else
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72 do_mm_inplace_op<MDiagArray2<T>, MDiagArray2<T> > (a, b, mx_inline_sub2, "-=");
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73 return a;
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74 }
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75
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76
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77 // Element by element MDiagArray2 by scalar ops.
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78
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79 #define MARRAY_DAS_OP(OP, FN) \
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80 template <class T> \
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81 MDiagArray2<T> \
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82 operator OP (const MDiagArray2<T>& a, const T& s) \
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83 { \
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84 return do_ms_binary_op<MDiagArray2<T>, MDiagArray2<T>, T> (a, s, FN); \
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85 }
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86
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87 MARRAY_DAS_OP (*, mx_inline_mul)
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88 MARRAY_DAS_OP (/, mx_inline_div)
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89
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90 // Element by element scalar by MDiagArray2 ops.
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91
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92 template <class T>
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93 MDiagArray2<T>
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94 operator * (const T& s, const MDiagArray2<T>& a)
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95 {
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96 return do_sm_binary_op<MDiagArray2<T>, T, MDiagArray2<T> > (s, a, mx_inline_mul);
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97 }
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98
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99 // Element by element MDiagArray2 by MDiagArray2 ops.
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100
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101 #define MARRAY_DADA_OP(FCN, OP, FN) \
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102 template <class T> \
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103 MDiagArray2<T> \
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104 FCN (const MDiagArray2<T>& a, const MDiagArray2<T>& b) \
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105 { \
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106 return do_mm_binary_op<MDiagArray2<T>, MDiagArray2<T>, MDiagArray2<T> > (a, b, FN, #FCN); \
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107 }
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108
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109 MARRAY_DADA_OP (operator +, +, mx_inline_add)
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110 MARRAY_DADA_OP (operator -, -, mx_inline_sub)
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111 MARRAY_DADA_OP (product, *, mx_inline_mul)
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112
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113 // Unary MDiagArray2 ops.
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114
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115 template <class T>
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116 MDiagArray2<T>
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117 operator + (const MDiagArray2<T>& a)
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118 {
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119 return a;
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120 }
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121
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122 template <class T>
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123 MDiagArray2<T>
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124 operator - (const MDiagArray2<T>& a)
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125 {
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126 return do_mx_unary_op<MDiagArray2<T>, MDiagArray2<T> > (a, mx_inline_uminus);
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127 }
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128
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129 /*
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130 ;;; Local Variables: ***
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131 ;;; mode: C++ ***
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132 ;;; End: ***
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133 */