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1993
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1 // Template array classes with like-type math ops |
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1988
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2 /* |
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3 |
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2847
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4 Copyright (C) 1996, 1997 John W. Eaton |
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1988
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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 2, or (at your option) any |
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11 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, write to the Free |
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20 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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21 |
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22 */ |
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23 |
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24 #if defined (__GNUG__) |
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25 #pragma interface |
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26 #endif |
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27 |
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28 #if !defined (octave_MDiagArray2_h) |
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29 #define octave_MDiagArray2_h 1 |
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30 |
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31 #include "DiagArray2.h" |
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32 #include "MArray2.h" |
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33 |
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34 // Two dimensional diagonal array with math ops. |
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35 |
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36 template <class T> |
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37 class MDiagArray2 : public DiagArray2<T> |
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38 { |
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39 protected: |
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40 |
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41 MDiagArray2 (T *d, int r, int c) : DiagArray2<T> (d, r, c) { } |
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42 |
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43 public: |
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44 |
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45 MDiagArray2 (void) : DiagArray2<T> () { } |
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46 MDiagArray2 (int r, int c) : DiagArray2<T> (r, c) { } |
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47 MDiagArray2 (int r, int c, const T& val) : DiagArray2<T> (r, c, val) { } |
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48 MDiagArray2 (const Array<T>& a) : DiagArray2<T> (a) { } |
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49 MDiagArray2 (const DiagArray2<T>& a) : DiagArray2<T> (a) { } |
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50 MDiagArray2 (const MDiagArray2<T>& a) : DiagArray2<T> (a) { } |
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51 |
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52 ~MDiagArray2 (void) { } |
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53 |
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54 MDiagArray2<T>& operator = (const MDiagArray2<T>& a) |
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55 { |
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56 DiagArray2<T>::operator = (a); |
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57 return *this; |
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58 } |
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59 |
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60 operator MArray2<T> () const |
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61 { |
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62 MArray2<T> retval (nr, nc, T (0)); |
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63 |
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64 int len = nr < nc ? nr : nc; |
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65 |
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66 for (int i = 0; i < len; i++) |
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67 retval.xelem (i, i) = xelem (i, i); |
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68 |
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69 return retval; |
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70 } |
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71 |
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72 // element by element MDiagArray2 by MDiagArray2 ops |
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73 |
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74 friend MDiagArray2<T>& |
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75 operator += (MDiagArray2<T>& a, const MDiagArray2<T>& b); |
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76 |
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77 friend MDiagArray2<T>& |
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78 operator -= (MDiagArray2<T>& a, const MDiagArray2<T>& b); |
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79 |
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80 // element by element MDiagArray2 by scalar ops |
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81 |
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82 friend MDiagArray2<T> operator * (const MDiagArray2<T>& a, const T& s); |
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83 friend MDiagArray2<T> operator / (const MDiagArray2<T>& a, const T& s); |
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84 |
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85 // element by element scalar by MDiagArray2 ops |
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86 |
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87 friend MDiagArray2<T> operator * (const T& s, const MDiagArray2<T>& a); |
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88 |
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89 // element by element MDiagArray2 by MDiagArray2 ops |
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90 |
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91 friend MDiagArray2<T> |
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92 operator + (const MDiagArray2<T>& a, const MDiagArray2<T>& b); |
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93 |
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94 friend MDiagArray2<T> |
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95 operator - (const MDiagArray2<T>& a, const MDiagArray2<T>& b); |
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96 |
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97 friend MDiagArray2<T> |
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98 product (const MDiagArray2<T>& a, const MDiagArray2<T>& b); |
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99 |
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100 friend MDiagArray2<T> operator - (const MDiagArray2<T>& a); |
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101 }; |
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102 |
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103 #define INSTANTIATE_MDIAGARRAY_FRIENDS(T) \ |
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1992
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104 template MDiagArray2<T>& operator += (MDiagArray2<T>& a, const MDiagArray2<T>& b); \ |
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105 template MDiagArray2<T>& operator -= (MDiagArray2<T>& a, const MDiagArray2<T>& b); \ |
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1988
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106 template MDiagArray2<T> operator * (const MDiagArray2<T>& a, const T& s); \ |
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107 template MDiagArray2<T> operator / (const MDiagArray2<T>& a, const T& s); \ |
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108 template MDiagArray2<T> operator * (const T& s, const MDiagArray2<T>& a); \ |
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109 template MDiagArray2<T> operator + (const MDiagArray2<T>& a, const MDiagArray2<T>& b); \ |
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110 template MDiagArray2<T> operator - (const MDiagArray2<T>& a, const MDiagArray2<T>& b); \ |
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111 template MDiagArray2<T> product (const MDiagArray2<T>& a, const MDiagArray2<T>& b); \ |
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112 template MDiagArray2<T> operator - (const MDiagArray2<T>& a); |
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113 |
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114 #endif |
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115 |
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116 /* |
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117 ;;; Local Variables: *** |
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118 ;;; mode: C++ *** |
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119 ;;; End: *** |
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120 */ |
