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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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4066
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23 #if defined (__GNUG__) && ! defined (NO_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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3503
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31 #include <iostream> |
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32 |
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3933
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33 #include "Cell.h" |
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34 #include "oct-obj.h" |
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3933
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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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3572
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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 SLList<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 SLList<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 |
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83 { |
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84 std::string nm = type_name (); |
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85 error ("in indexed assignment of %s, last rhs index must be ()", |
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86 nm.c_str ()); |
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87 } |
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88 } |
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89 break; |
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90 |
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91 case '{': |
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92 case '.': |
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93 { |
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94 std::string nm = type_name (); |
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95 error ("%s cannot be indexed with %c", nm.c_str (), type[0]); |
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96 } |
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97 break; |
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98 |
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99 default: |
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100 panic_impossible (); |
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101 } |
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102 |
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103 return retval; |
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104 } |
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105 |
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106 template <class MT> |
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107 octave_value |
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108 octave_base_matrix<MT>::do_index_op (const octave_value_list& idx, |
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109 int resize_ok) |
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110 { |
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111 octave_value retval; |
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112 |
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113 int len = idx.length (); |
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114 |
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115 switch (len) |
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116 { |
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117 case 2: |
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118 { |
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119 idx_vector i = idx (0).index_vector (); |
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120 idx_vector j = idx (1).index_vector (); |
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121 |
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122 retval = MT (matrix.index (i, j, resize_ok, MT::resize_fill_value ())); |
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123 } |
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124 break; |
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125 |
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126 case 1: |
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127 { |
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128 idx_vector i = idx (0).index_vector (); |
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129 |
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130 retval = MT (matrix.index (i, resize_ok, MT::resize_fill_value ())); |
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131 } |
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132 break; |
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133 |
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134 default: |
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135 { |
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136 std::string n = type_name (); |
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137 |
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138 error ("invalid number of indices (%d) for %s value", |
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139 len, n.c_str ()); |
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140 } |
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141 break; |
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142 } |
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143 |
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144 return retval; |
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145 } |
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146 |
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147 #if !defined (CXX_NEW_FRIEND_TEMPLATE_DECL) |
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148 template <class MT> |
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149 extern void assign (MT&, const MT&); |
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150 #endif |
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151 |
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152 template <class MT> |
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153 void |
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154 octave_base_matrix<MT>::assign (const octave_value_list& idx, const MT& rhs) |
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155 { |
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156 int len = idx.length (); |
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157 |
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158 switch (len) |
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159 { |
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160 case 2: |
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161 { |
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162 idx_vector i = idx (0).index_vector (); |
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163 idx_vector j = idx (1).index_vector (); |
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164 |
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165 matrix.set_index (i); |
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166 matrix.set_index (j); |
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167 |
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168 ::assign (matrix, rhs); |
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169 } |
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170 break; |
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171 |
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172 case 1: |
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173 { |
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174 idx_vector i = idx (0).index_vector (); |
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175 |
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176 matrix.set_index (i); |
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177 |
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178 ::assign (matrix, rhs); |
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179 } |
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180 break; |
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181 |
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182 default: |
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183 error ("invalid number of indices (%d) for indexed assignment", |
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184 len); |
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185 break; |
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186 } |
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187 } |
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188 |
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189 template <class MT> |
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190 bool |
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191 octave_base_matrix<MT>::is_true (void) const |
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192 { |
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193 bool retval = false; |
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194 |
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195 if (rows () == 0 || columns () == 0) |
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196 { |
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197 int flag = Vpropagate_empty_matrices; |
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198 |
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199 if (flag < 0) |
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200 warning ("empty matrix used in conditional expression"); |
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201 else if (flag == 0) |
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202 error ("empty matrix used in conditional expression"); |
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203 } |
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204 else |
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205 { |
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206 boolMatrix m = (matrix.all () . all ()); |
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207 |
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208 retval = (m.rows () == 1 && m.columns () == 1 && m(0,0)); |
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209 } |
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210 |
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211 return retval; |
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212 } |
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213 |
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214 template <class MT> |
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215 bool |
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216 octave_base_matrix<MT>::print_as_scalar (void) const |
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217 { |
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218 int nr = rows (); |
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219 int nc = columns (); |
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220 |
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221 return (nr == 1 && nc == 1 || (nr == 0 || nc == 0)); |
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222 } |
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223 |
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224 template <class MT> |
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225 void |
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226 octave_base_matrix<MT>::print (std::ostream& os, bool pr_as_read_syntax) const |
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227 { |
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228 print_raw (os, pr_as_read_syntax); |
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229 newline (os); |
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230 } |
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231 |
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232 template <class MT> |
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233 void |
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234 octave_base_matrix<MT>::print_raw (std::ostream& os, |
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235 bool pr_as_read_syntax) const |
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236 { |
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237 octave_print_internal (os, matrix, pr_as_read_syntax, |
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238 current_print_indent_level ()); |
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239 } |
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240 |
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241 template <class MT> |
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242 bool |
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243 octave_base_matrix<MT>::print_name_tag (std::ostream& os, |
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244 const std::string& name) const |
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245 { |
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246 bool retval = false; |
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247 |
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248 indent (os); |
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249 |
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250 if (print_as_scalar ()) |
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251 os << name << " = "; |
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252 else |
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253 { |
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254 os << name << " ="; |
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255 newline (os); |
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256 newline (os); |
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257 retval = true; |
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258 } |
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259 |
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260 return retval; |
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261 } |
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262 |
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263 template <class MT> |
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264 void |
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265 octave_base_matrix<MT>::print_info (std::ostream& os, |
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266 const std::string& prefix) const |
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267 { |
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268 matrix.print_info (os, prefix); |
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269 } |
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270 |
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271 /* |
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272 ;;; Local Variables: *** |
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273 ;;; mode: C++ *** |
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274 ;;; End: *** |
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275 */ |
