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1 // Template array classes |
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2 /* |
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3 |
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4 Copyright (C) 2000 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, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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21 02110-1301, USA. |
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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 <cassert> |
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30 |
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31 #include <iostream> |
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32 |
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33 #include "Array-util.h" |
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34 #include "ArrayN.h" |
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35 #include "ArrayN-idx.h" |
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36 #include "idx-vector.h" |
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37 #include "lo-error.h" |
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38 |
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39 // N-dimensional array class. |
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40 |
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41 template <class T> |
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42 std::ostream& |
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43 operator << (std::ostream& os, const ArrayN<T>& a) |
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44 { |
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45 dim_vector a_dims = a.dims (); |
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46 |
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47 int n_dims = a_dims.length (); |
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48 |
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49 os << n_dims << "-dimensional array"; |
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50 |
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51 if (n_dims) |
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52 os << " (" << a_dims.str () << ")"; |
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53 |
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54 os <<"\n\n"; |
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55 |
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56 if (n_dims) |
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57 { |
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58 os << "data:"; |
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59 |
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60 Array<octave_idx_type> ra_idx (n_dims, 0); |
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61 |
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62 // Number of times the first 2d-array is to be displayed. |
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63 |
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64 octave_idx_type m = 1; |
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65 for (int i = 2; i < n_dims; i++) |
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66 m *= a_dims(i); |
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67 |
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68 if (m == 1) |
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69 { |
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70 octave_idx_type rows = 0; |
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71 octave_idx_type cols = 0; |
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72 |
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73 switch (n_dims) |
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74 { |
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75 case 2: |
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76 rows = a_dims(0); |
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77 cols = a_dims(1); |
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78 |
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79 for (octave_idx_type j = 0; j < rows; j++) |
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80 { |
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81 ra_idx(0) = j; |
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82 for (octave_idx_type k = 0; k < cols; k++) |
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83 { |
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84 ra_idx(1) = k; |
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85 os << " " << a.elem(ra_idx); |
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86 } |
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87 os << "\n"; |
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88 } |
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89 break; |
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90 |
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91 default: |
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92 rows = a_dims(0); |
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93 |
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94 for (octave_idx_type k = 0; k < rows; k++) |
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95 { |
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96 ra_idx(0) = k; |
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97 os << " " << a.elem(ra_idx); |
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98 } |
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99 break; |
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100 } |
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101 |
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102 os << "\n"; |
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103 } |
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104 else |
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105 { |
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106 octave_idx_type rows = a_dims(0); |
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107 octave_idx_type cols = a_dims(1); |
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108 |
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109 for (int i = 0; i < m; i++) |
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110 { |
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111 os << "\n(:,:,"; |
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112 |
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113 for (int j = 2; j < n_dims - 1; j++) |
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114 os << ra_idx(j) + 1 << ","; |
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115 |
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116 os << ra_idx(n_dims - 1) + 1 << ") = \n"; |
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117 |
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118 for (octave_idx_type j = 0; j < rows; j++) |
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119 { |
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120 ra_idx(0) = j; |
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121 |
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122 for (octave_idx_type k = 0; k < cols; k++) |
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123 { |
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124 ra_idx(1) = k; |
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125 os << " " << a.elem(ra_idx); |
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126 } |
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127 |
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128 os << "\n"; |
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129 } |
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130 |
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131 os << "\n"; |
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132 |
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133 if (i != m - 1) |
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134 increment_index (ra_idx, a_dims, 2); |
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135 } |
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136 } |
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137 } |
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138 |
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139 return os; |
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140 } |
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141 |
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142 /* |
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143 ;;; Local Variables: *** |
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144 ;;; mode: C++ *** |
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145 ;;; End: *** |
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146 */ |
