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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 (octave_bool_h) |
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24 #define octave_bool_h 1 |
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25 |
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26 #if defined (__GNUG__) |
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27 #pragma interface |
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28 #endif |
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29 |
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30 #include <cstdlib> |
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31 |
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32 #include <string> |
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33 |
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34 class ostream; |
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35 |
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36 #include "lo-utils.h" |
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37 #include "mx-base.h" |
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38 #include "oct-alloc.h" |
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39 #include "str-vec.h" |
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40 |
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41 #include "ov-base.h" |
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42 #include "ov-typeinfo.h" |
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43 |
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44 class Octave_map; |
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45 class octave_value_list; |
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46 |
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47 class tree_walker; |
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48 |
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49 // Real scalar values. |
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50 |
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51 class |
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52 octave_bool : public octave_base_value |
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53 { |
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54 public: |
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55 |
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56 octave_bool (void) |
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57 : octave_base_value (), scalar (false) { } |
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58 |
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59 octave_bool (bool b) |
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60 : octave_base_value (), scalar (b) { } |
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61 |
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62 octave_bool (const octave_bool& s) |
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63 : octave_base_value (), scalar (s.scalar) { } |
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64 |
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65 ~octave_bool (void) { } |
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66 |
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67 octave_value *clone (void) { return new octave_bool (*this); } |
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68 |
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69 void *operator new (size_t size) |
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70 { return allocator.alloc (size); } |
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71 |
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72 void operator delete (void *p, size_t size) |
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73 { allocator.free (p, size); } |
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74 |
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75 type_conv_fcn numeric_conversion_function (void) const; |
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76 |
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77 octave_value do_index_op (const octave_value_list& idx); |
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78 |
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79 idx_vector index_vector (void) const { return idx_vector (scalar); } |
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80 |
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81 int rows (void) const { return 1; } |
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82 int columns (void) const { return 1; } |
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83 |
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84 int length (void) const { return 1; } |
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85 |
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86 bool is_defined (void) const { return true; } |
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87 |
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88 bool is_constant (void) const { return true; } |
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89 |
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90 bool is_real_scalar (void) const { return true; } |
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91 |
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92 octave_value all (void) const { return scalar; } |
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93 octave_value any (void) const { return scalar; } |
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94 |
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95 bool is_bool_type (void) const { return true; } |
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96 |
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97 bool is_real_type (void) const { return true; } |
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98 |
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99 bool is_scalar_type (void) const { return true; } |
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100 |
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101 bool is_numeric_type (void) const { return true; } |
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102 |
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103 bool valid_as_scalar_index (void) const { return scalar; } |
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104 |
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105 bool valid_as_zero_index (void) const { return ! scalar; } |
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106 |
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107 bool is_true (void) const { return scalar; } |
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108 |
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109 double double_value (bool = false) const { return scalar; } |
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110 |
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111 double scalar_value (bool = false) const { return scalar; } |
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112 |
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113 Matrix matrix_value (bool = false) const |
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114 { return Matrix (1, 1, scalar); } |
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115 |
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116 Complex complex_value (bool = false) const { return scalar; } |
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117 |
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118 ComplexMatrix complex_matrix_value (bool = false) const |
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119 { return ComplexMatrix (1, 1, Complex (scalar)); } |
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120 |
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121 bool bool_value (void) const { return scalar; } |
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122 |
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123 boolMatrix bool_matrix_value (void) const |
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124 { return boolMatrix (1, 1, scalar); } |
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125 |
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126 octave_value convert_to_str (void) const; |
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127 |
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128 void print (ostream& os, bool pr_as_read_syntax = false) const; |
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129 |
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130 void print_raw (ostream& os, bool pr_as_read_syntax = false) const; |
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131 |
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132 bool print_name_tag (ostream& os, const string& name) const; |
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133 |
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134 int type_id (void) const { return t_id; } |
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135 |
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136 string type_name (void) const { return t_name; } |
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137 |
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138 static int static_type_id (void) { return t_id; } |
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139 |
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140 static void register_type (void) |
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141 { t_id = octave_value_typeinfo::register_type (t_name); } |
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142 |
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143 private: |
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144 |
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145 // The value of this scalar. |
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146 bool scalar; |
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147 |
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148 // For custom memory management. |
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149 static octave_allocator allocator; |
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150 |
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151 // Type id of bool objects, set by register_type(). |
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152 static int t_id; |
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153 |
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154 // Type name of bool objects, defined in ov-bool.cc. |
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155 static const string t_name; |
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156 }; |
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157 |
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158 #endif |
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159 |
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160 /* |
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161 ;;; Local Variables: *** |
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162 ;;; mode: C++ *** |
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163 ;;; End: *** |
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164 */ |
