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1 /* |
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2 |
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3 Copyright (C) 1996, 1997 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #if defined (__GNUG__) && defined (USE_PRAGMA_INTERFACE_IMPLEMENTATION) |
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24 #pragma implementation |
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25 #endif |
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26 |
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27 #ifdef HAVE_CONFIG_H |
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28 #include <config.h> |
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29 #endif |
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30 |
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31 #include <iostream> |
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32 |
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33 #include "Cell.h" |
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34 #include "oct-obj.h" |
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35 #include "oct-map.h" |
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36 #include "ov-base.h" |
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37 #include "ov-base-mat.h" |
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38 #include "pr-output.h" |
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39 |
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40 template <class MT> |
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41 octave_value |
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42 octave_base_matrix<MT>::subsref (const std::string& type, |
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43 const std::list<octave_value_list>& idx) |
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44 { |
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45 octave_value retval; |
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46 |
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47 switch (type[0]) |
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48 { |
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49 case '(': |
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50 retval = do_index_op (idx.front ()); |
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51 break; |
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52 |
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53 case '{': |
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54 case '.': |
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55 { |
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56 std::string nm = type_name (); |
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57 error ("%s cannot be indexed with %c", nm.c_str (), type[0]); |
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58 } |
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59 break; |
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60 |
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61 default: |
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62 panic_impossible (); |
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63 } |
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64 |
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65 return retval.next_subsref (type, idx); |
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66 } |
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67 |
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68 template <class MT> |
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69 octave_value |
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70 octave_base_matrix<MT>::subsasgn (const std::string& type, |
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71 const std::list<octave_value_list>& idx, |
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72 const octave_value& rhs) |
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73 { |
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74 octave_value retval; |
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75 |
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76 switch (type[0]) |
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77 { |
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78 case '(': |
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79 { |
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80 if (type.length () == 1) |
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81 retval = numeric_assign (type, idx, rhs); |
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82 else if (is_empty ()) |
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83 { |
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84 // Allow conversion of empty matrix to some other type in |
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85 // cases like |
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86 // |
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87 // x = []; x(i).f = rhs |
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88 |
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89 octave_value tmp = octave_value::empty_conv (type, rhs); |
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90 |
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91 retval = tmp.subsasgn (type, idx, rhs); |
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92 } |
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93 else |
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94 { |
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95 std::string nm = type_name (); |
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96 error ("in indexed assignment of %s, last lhs index must be ()", |
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97 nm.c_str ()); |
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98 } |
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99 } |
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100 break; |
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101 |
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102 case '{': |
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103 case '.': |
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104 { |
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105 if (is_empty ()) |
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106 { |
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107 octave_value tmp = octave_value::empty_conv (type, rhs); |
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108 |
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109 retval = tmp.subsasgn (type, idx, rhs); |
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110 } |
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111 else |
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112 { |
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113 std::string nm = type_name (); |
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114 error ("%s cannot be indexed with %c", nm.c_str (), type[0]); |
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115 } |
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116 } |
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117 break; |
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118 |
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119 default: |
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120 panic_impossible (); |
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121 } |
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122 |
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123 return retval; |
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124 } |
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125 |
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126 template <class MT> |
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127 octave_value |
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128 octave_base_matrix<MT>::do_index_op (const octave_value_list& idx, |
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129 int resize_ok) |
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130 { |
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131 octave_value retval; |
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132 |
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133 int n_idx = idx.length (); |
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134 |
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135 int nd = matrix.ndims (); |
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136 |
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137 switch (n_idx) |
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138 { |
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139 case 0: |
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140 error ("invalid number of indices (= 0) for %d-dimensional array", nd); |
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141 break; |
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142 |
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143 case 1: |
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144 { |
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145 idx_vector i = idx (0).index_vector (); |
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146 |
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147 retval = MT (matrix.index (i, resize_ok, MT::resize_fill_value ())); |
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148 } |
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149 break; |
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150 |
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151 default: |
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152 { |
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153 if (n_idx == 2 && nd == 2) |
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154 { |
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155 idx_vector i = idx (0).index_vector (); |
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156 idx_vector j = idx (1).index_vector (); |
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157 |
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158 retval = MT (matrix.index (i, j, resize_ok, |
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159 MT::resize_fill_value ())); |
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160 } |
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161 else |
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162 { |
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163 Array<idx_vector> idx_vec (n_idx); |
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164 |
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165 for (int i = 0; i < n_idx; i++) |
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166 idx_vec(i) = idx(i).index_vector (); |
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167 |
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168 retval = MT (matrix.index (idx_vec, resize_ok, |
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169 MT::resize_fill_value ())); |
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170 } |
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171 } |
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172 break; |
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173 } |
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174 |
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175 return retval; |
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176 } |
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177 |
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178 template <class MT> |
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179 void |
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180 octave_base_matrix<MT>::assign (const octave_value_list& idx, const MT& rhs) |
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181 { |
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182 int len = idx.length (); |
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183 |
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184 for (int i = 0; i < len; i++) |
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185 matrix.set_index (idx(i).index_vector ()); |
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186 |
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187 ::assign (matrix, rhs, MT::resize_fill_value ()); |
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188 } |
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189 |
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190 template <class MT> |
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191 bool |
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192 octave_base_matrix<MT>::is_true (void) const |
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193 { |
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194 bool retval = false; |
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195 |
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196 if (matrix.dims () . length () == 2) |
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197 { |
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198 if (rows () > 0 && columns () > 0) |
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199 { |
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200 boolNDArray m = (matrix.all () . all ()); |
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201 |
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202 retval = (m.rows () == 1 && m.columns () == 1 && m(0,0)); |
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203 } |
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204 } |
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205 else |
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206 (*current_liboctave_error_handler) |
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207 ("is_true not yet implemented for N-d Arrays"); |
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208 |
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209 return retval; |
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210 } |
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211 |
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212 template <class MT> |
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213 bool |
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214 octave_base_matrix<MT>::print_as_scalar (void) const |
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215 { |
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216 dim_vector dv = dims (); |
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217 |
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218 return (dv.all_ones () || dv.any_zero ()); |
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219 } |
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220 |
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221 template <class MT> |
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222 void |
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223 octave_base_matrix<MT>::print (std::ostream& os, bool pr_as_read_syntax) const |
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224 { |
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225 print_raw (os, pr_as_read_syntax); |
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226 newline (os); |
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227 } |
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228 |
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229 template <class MT> |
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230 void |
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231 octave_base_matrix<MT>::print_info (std::ostream& os, |
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232 const std::string& prefix) const |
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233 { |
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234 matrix.print_info (os, prefix); |
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235 } |
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236 |
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237 /* |
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238 ;;; Local Variables: *** |
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239 ;;; mode: C++ *** |
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240 ;;; End: *** |
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241 */ |
