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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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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__) && defined (USE_PRAGMA_INTERFACE_IMPLEMENTATION) |
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1988
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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 // But first, some preprocessor abuse... |
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37 |
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38 #include "MArray-defs.h" |
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39 |
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40 MDIAGARRAY2_OPS_FORWARD_DECLS (MDiagArray2) |
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41 |
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42 template <class T> |
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43 class |
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44 MDiagArray2 : public DiagArray2<T> |
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45 { |
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46 protected: |
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47 |
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48 MDiagArray2 (T *d, int r, int c) : DiagArray2<T> (d, r, c) { } |
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49 |
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50 public: |
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51 |
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52 MDiagArray2 (void) : DiagArray2<T> () { } |
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53 |
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54 MDiagArray2 (int r, int c) : DiagArray2<T> (r, c) { } |
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55 |
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56 MDiagArray2 (int r, int c, const T& val) : DiagArray2<T> (r, c, val) { } |
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57 |
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58 MDiagArray2 (const MDiagArray2<T>& a) : DiagArray2<T> (a) { } |
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59 |
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60 MDiagArray2 (const DiagArray2<T>& a) : DiagArray2<T> (a) { } |
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61 |
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62 explicit MDiagArray2 (const Array<T>& a) : DiagArray2<T> (a) { } |
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63 |
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64 ~MDiagArray2 (void) { } |
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65 |
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66 MDiagArray2<T>& operator = (const MDiagArray2<T>& a) |
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67 { |
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68 DiagArray2<T>::operator = (a); |
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69 return *this; |
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70 } |
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71 |
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72 operator MArray2<T> () const |
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73 { |
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74 int nr = DiagArray2<T>::dim1 (); |
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75 int nc = DiagArray2<T>::dim2 (); |
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76 |
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77 MArray2<T> retval (nr, nc, T (0)); |
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78 |
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79 int len = nr < nc ? nr : nc; |
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80 |
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81 for (int i = 0; i < len; i++) |
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82 retval.xelem (i, i) = xelem (i, i); |
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83 |
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84 return retval; |
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85 } |
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86 |
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87 static MDiagArray2<T> nil_array; |
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88 |
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89 // Currently, the OPS functions don't need to be friends, but that |
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90 // may change. |
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91 |
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92 // MDIAGARRAY2_OPS_FRIEND_DECLS (MDiagArray2) |
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93 |
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94 }; |
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95 |
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96 #endif |
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97 |
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98 /* |
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99 ;;; Local Variables: *** |
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100 ;;; mode: C++ *** |
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101 ;;; End: *** |
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102 */ |
