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1993
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1 // Template array classes |
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1988
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2 /* |
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3 |
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4 Copyright (C) 1996 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 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 (octave_Array3_h) |
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25 #define octave_Array3_h 1 |
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26 |
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27 #if defined (__GNUG__) |
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28 #pragma interface |
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29 #endif |
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30 |
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31 #include <cassert> |
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32 #include <cstdlib> |
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33 |
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34 #include "Array2.h" |
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35 #include "lo-error.h" |
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36 |
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37 class idx_vector; |
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38 |
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39 // Three dimensional array class. |
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40 |
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41 template <class T> |
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42 class Array3 : public Array2<T> |
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43 { |
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44 protected: |
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45 |
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46 int d3; |
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47 |
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48 Array3 (T *d, int n, int m, int k) : Array2<T> (d, n, m*k) |
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49 { |
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50 d2 = m; |
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51 d3 = k; |
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52 set_max_indices (3); |
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53 } |
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54 |
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55 public: |
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56 |
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57 Array3 (void) : Array2<T> () |
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58 { |
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59 d2 = 0; |
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60 d3 = 0; |
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61 set_max_indices (3); |
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62 } |
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63 |
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64 Array3 (int n, int m, int k) : Array2<T> (n, m*k) |
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65 { |
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66 d2 = m; |
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67 d3 = k; |
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68 set_max_indices (3); |
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69 } |
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70 |
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71 Array3 (int n, int m, int k, const T& val) : Array2<T> (n, m*k, val) |
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72 { |
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73 d2 = m; |
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74 d3 = k; |
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75 set_max_indices (3); |
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76 } |
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77 |
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78 Array3 (const Array3<T>& a) : Array2<T> (a) |
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79 { |
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80 d2 = a.d2; |
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81 d3 = a.d3; |
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82 set_max_indices (3); |
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83 } |
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84 |
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85 ~Array3 (void) { } |
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86 |
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87 Array3<T>& operator = (const Array3<T>& a) |
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88 { |
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89 if (this != &a && rep != a.rep) |
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90 { |
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91 Array<T>::operator = (a); |
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92 d1 = a.d1; |
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93 d2 = a.d2; |
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94 d3 = a.d3; |
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95 } |
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96 |
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97 return *this; |
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98 } |
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99 |
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100 int dim3 (void) const { return d3; } |
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101 |
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2306
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102 // No checking of any kind, ever. |
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103 |
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104 T& xelem (int i, int j, int k) { return Array2<T>::xelem (i, d2*k+j); } |
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105 T xelem (int i, int j, int k) const { return Array2<T>::xelem (i, d2*k+j); } |
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106 |
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2306
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107 // Note that the following element selection methods don't use |
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108 // xelem() because they need to make use of the code in |
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109 // Array<T>::elem() that checks the reference count. |
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110 |
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111 T& checkelem (int i, int j, int k) |
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112 { |
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113 if (i < 0 || j < 0 || k < 0 || i >= d1 || j >= d2 || k >= d3) |
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114 { |
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115 (*current_liboctave_error_handler) ("range error"); |
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116 static T foo; |
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117 return foo; |
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118 } |
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119 return Array2<T>::elem (i, d2*k+j); |
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120 } |
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121 |
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122 T& elem (int i, int j, int k) { return Array2<T>::elem (i, d2*k+j); } |
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123 |
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124 #if defined (BOUNDS_CHECKING) |
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125 T& operator () (int i, int j, int k) { return checkelem (i, j, k); } |
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126 #else |
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127 T& operator () (int i, int j, int k) { return elem (i, j, k); } |
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128 #endif |
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129 |
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130 T checkelem (int i, int j, int k) const |
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131 { |
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132 if (i < 0 || j < 0 || k < 0 || i >= d1 || j >= d2 || k >= d3) |
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133 { |
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134 (*current_liboctave_error_handler) ("range error"); |
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135 T foo; |
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136 static T *bar = &foo; |
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137 return foo; |
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138 } |
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139 return Array2<T>::elem (i, d1*k+j); |
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140 } |
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141 |
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142 T elem (int i, int j, int k) const { return Array2<T>::elem (i, d2*k+j); } |
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143 |
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144 #if defined (BOUNDS_CHECKING) |
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145 T operator () (int i, int j, int k) const { return checkelem (i, j, k); } |
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146 #else |
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147 T operator () (int i, int j, int k) const { return elem (i, j, k); } |
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148 #endif |
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149 |
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150 void resize (int n, int m, int k); |
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151 void resize (int n, int m, int k, const T& val); |
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152 |
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153 #ifdef HEAVYWEIGHT_INDEXING |
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154 void maybe_delete_elements (idx_vector& i, idx_vector& j, idx_vector& k); |
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155 |
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156 Array3<T> value (void); |
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157 #endif |
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158 }; |
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159 |
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160 template <class LT, class RT> |
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161 int assign (Array3<LT>& lhs, const Array3<RT>& rhs); |
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162 |
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163 #endif |
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164 |
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165 /* |
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166 ;;; Local Variables: *** |
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167 ;;; mode: C++ *** |
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168 ;;; End: *** |
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169 */ |
