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annotate liboctave/MDiagArray2.cc @ 11273:bd2643f0ce57 ss-3-3-54

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snapshot 3.3.54
author John W. Eaton <jwe@octave.org>
date Fri, 19 Nov 2010 16:05:58 -0500
parents 4d1fc073fbb7
children fd0a3ac60b0e
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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 Copyright (C) 2010 VZLU Prague
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6
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7 This file is part of Octave.
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8
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9 Octave is free software; you can redistribute it and/or modify it
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10 under the terms of the GNU General Public License as published by the
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11 Free Software Foundation; either version 3 of the License, or (at your
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12 option) any later version.
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13
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14 Octave is distributed in the hope that it will be useful, but WITHOUT
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15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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17 for more details.
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18
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19 You should have received a copy of the GNU General Public License
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20 along with Octave; see the file COPYING. If not, see
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21 <http://www.gnu.org/licenses/>.
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22
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23 */
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24
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25 #ifdef HAVE_CONFIG_H
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26 #include <config.h>
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27 #endif
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28
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29 #include "MDiagArray2.h"
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30 #include "Array-util.h"
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31 #include "lo-error.h"
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32
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33 #include "MArray-defs.h"
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34
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35 template <class T>
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36 bool
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37 MDiagArray2<T>::is_multiple_of_identity (T val) const
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38 {
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39 bool retval = this->rows () == this->cols ();
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40 if (retval)
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41 {
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42 octave_idx_type len = this->length (), i = 0;
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43 for (;i < len; i++)
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44 if (DiagArray2<T>::elem (i, i) != val) break;
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45 retval = i == len;
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46 }
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47
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48 return retval;
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49 }
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50
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51 // Two dimensional diagonal array with math ops.
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52
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53 // Element by element MDiagArray2 by MDiagArray2 ops.
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54
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55 // Element by element MDiagArray2 by scalar ops.
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56
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57 #define MARRAY_DAS_OP(OP, FN) \
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58 template <class T> \
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59 MDiagArray2<T> \
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60 operator OP (const MDiagArray2<T>& a, const T& s) \
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61 { \
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62 return MDiagArray2<T> (do_ms_binary_op<T, T, T> (a, s, FN), a.d1, a.d2); \
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63 }
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64
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65 MARRAY_DAS_OP (*, mx_inline_mul)
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66 MARRAY_DAS_OP (/, mx_inline_div)
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67
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68 // Element by element scalar by MDiagArray2 ops.
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69
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70 template <class T>
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71 MDiagArray2<T>
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72 operator * (const T& s, const MDiagArray2<T>& a)
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73 {
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74 return MDiagArray2<T> (do_sm_binary_op<T, T, T> (s, a, mx_inline_mul), a.d1, a.d2);
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75 }
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76
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77 // Element by element MDiagArray2 by MDiagArray2 ops.
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78
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79 #define MARRAY_DADA_OP(FCN, OP, FN) \
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80 template <class T> \
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81 MDiagArray2<T> \
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82 FCN (const MDiagArray2<T>& a, const MDiagArray2<T>& b) \
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83 { \
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84 if (a.d1 != b.d1 || a.d2 != b.d2) \
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85 gripe_nonconformant (#FCN, a.d1, a.d2, b.d1, b.d2); \
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86 return MDiagArray2<T> (do_mm_binary_op<T, T, T> (a, b, FN, #FCN), a.d1, a.d2); \
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87 }
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88
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89 MARRAY_DADA_OP (operator +, +, mx_inline_add)
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90 MARRAY_DADA_OP (operator -, -, mx_inline_sub)
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91 MARRAY_DADA_OP (product, *, mx_inline_mul)
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92
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93 // Unary MDiagArray2 ops.
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94
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95 template <class T>
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96 MDiagArray2<T>
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97 operator + (const MDiagArray2<T>& a)
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98 {
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99 return a;
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100 }
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101
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102 template <class T>
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103 MDiagArray2<T>
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104 operator - (const MDiagArray2<T>& a)
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105 {
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106 return MDiagArray2<T> (do_mx_unary_op<T, T> (a, mx_inline_uminus), a.d1, a.d2);
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107 }