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1 #include <octave/config.h> |
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2 |
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3 #include <cstdlib> |
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4 |
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5 #include <string> |
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6 |
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7 #include <ostream> |
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8 |
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9 #include <octave/lo-mappers.h> |
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10 #include <octave/lo-utils.h> |
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11 #include <octave/mx-base.h> |
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12 #include <octave/str-vec.h> |
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13 |
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14 #include <octave/defun-dld.h> |
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15 #include <octave/error.h> |
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16 #include <octave/gripes.h> |
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17 #include <octave/oct-obj.h> |
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18 #include <octave/ops.h> |
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19 #include <octave/ov-base.h> |
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20 #include <octave/ov-typeinfo.h> |
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21 #include <octave/ov.h> |
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22 #include <octave/ov-scalar.h> |
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23 #include <octave/pager.h> |
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24 #include <octave/pr-output.h> |
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25 #include <octave/symtab.h> |
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26 #include <octave/variables.h> |
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27 |
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28 class Octave_map; |
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29 class octave_value_list; |
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30 |
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31 class tree_walker; |
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32 |
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33 // Integer values. |
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34 |
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35 class |
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36 octave_integer : public octave_base_value |
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37 { |
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38 public: |
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39 |
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40 octave_integer (void) |
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41 : octave_base_value (), scalar (0) { } |
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42 |
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43 octave_integer (int i) |
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44 : octave_base_value (), scalar (i) { } |
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45 |
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46 octave_integer (const octave_integer& s) |
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47 : octave_base_value (), scalar (s.scalar) { } |
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48 |
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49 ~octave_integer (void) { } |
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50 |
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51 octave_base_value *clone (void) { return new octave_integer (*this); } |
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52 |
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53 #if 0 |
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54 void *operator new (size_t size); |
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55 void operator delete (void *p, size_t size); |
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56 #endif |
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57 |
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58 idx_vector index_vector (void) const { return idx_vector ((double) scalar); } |
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59 |
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60 int rows (void) const { return 1; } |
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61 int columns (void) const { return 1; } |
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62 |
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63 bool is_constant (void) const { return true; } |
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64 |
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65 bool is_defined (void) const { return true; } |
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66 bool is_real_scalar (void) const { return true; } |
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67 |
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68 octave_value all (void) const { return (double) (scalar != 0); } |
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69 octave_value any (void) const { return (double) (scalar != 0); } |
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70 |
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71 bool is_real_type (void) const { return true; } |
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72 bool is_scalar_type (void) const { return true; } |
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73 bool is_numeric_type (void) const { return true; } |
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74 |
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75 bool valid_as_scalar_index (void) const |
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76 { return scalar == 1; } |
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77 |
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78 bool valid_as_zero_index (void) const |
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79 { return scalar == 0; } |
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80 |
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81 bool is_true (void) const { return (scalar != 0); } |
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82 |
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83 double double_value (bool = false) const { return (double) scalar; } |
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84 |
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85 int integer_value (bool = false) const { return scalar; } |
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86 |
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87 Matrix matrix_value (bool = false) const { return Matrix (1, 1, scalar); } |
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88 |
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89 Complex complex_value (bool = false) const { return scalar; } |
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90 |
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91 ComplexMatrix complex_matrix_value (bool = false) const |
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92 { return ComplexMatrix (1, 1, Complex (scalar)); } |
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93 |
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94 octave_value gnot (void) const { return octave_value ((double) ! scalar); } |
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95 |
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96 octave_value uminus (void) const { return new octave_integer (- scalar); } |
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97 |
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98 octave_value transpose (void) const { return new octave_integer (scalar); } |
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99 |
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100 octave_value hermitian (void) const { return new octave_integer (scalar); } |
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101 |
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102 void increment (void) { ++scalar; } |
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103 |
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104 void decrement (void) { --scalar; } |
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105 |
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106 void print (std::ostream& os, bool pr_as_read_syntax = false) const; |
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107 |
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108 private: |
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109 |
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110 int scalar; |
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111 |
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112 DECLARE_OCTAVE_ALLOCATOR |
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113 |
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114 DECLARE_OV_TYPEID_FUNCTIONS_AND_DATA |
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115 }; |
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116 |
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117 void |
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118 octave_integer::print (std::ostream& os, bool pr_as_read_syntax) const |
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119 { |
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120 os << scalar; |
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121 // octave_print_internal (os, scalar, pr_as_read_syntax); |
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122 } |
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123 |
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124 #ifdef DEFUNOP_OP |
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125 #undef DEFUNOP_OP |
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126 #endif |
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127 |
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128 #define DEFUNOP_OP(name, t, op) \ |
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129 UNOPDECL (name, a) \ |
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130 { \ |
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131 CAST_UNOP_ARG (const octave_ ## t&); \ |
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132 return octave_value (new octave_integer (op v.t ## _value ())); \ |
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133 } |
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134 |
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135 DEFUNOP_OP (gnot, integer, !) |
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136 DEFUNOP_OP (uminus, integer, -) |
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137 DEFUNOP_OP (transpose, integer, /* no-op */) |
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138 DEFUNOP_OP (hermitian, integer, /* no-op */) |
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139 |
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140 DEFNCUNOP_METHOD (incr, integer, increment) |
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141 DEFNCUNOP_METHOD (decr, integer, decrement) |
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142 |
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143 #ifdef DEFBINOP_OP |
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144 #undef DEFBINOP_OP |
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145 #endif |
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146 |
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147 #define DEFBINOP_OP(name, t1, t2, op) \ |
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148 BINOPDECL (name, a1, a2) \ |
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149 { \ |
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150 CAST_BINOP_ARGS (const octave_ ## t1&, const octave_ ## t2&); \ |
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151 return octave_value \ |
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152 (new octave_integer (v1.t1 ## _value () op v2.t2 ## _value ())); \ |
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153 } |
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154 |
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155 // integer by integer ops. |
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156 |
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157 DEFBINOP_OP (add, integer, integer, +) |
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158 DEFBINOP_OP (sub, integer, integer, -) |
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159 DEFBINOP_OP (mul, integer, integer, *) |
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160 |
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161 DEFBINOP (div, integer, integer) |
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162 { |
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163 CAST_BINOP_ARGS (const octave_integer&, const octave_integer&); |
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164 |
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165 int d = v2.integer_value (); |
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166 |
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167 if (d == 0) |
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168 gripe_divide_by_zero (); |
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169 |
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170 return new octave_integer (v1.integer_value () / d); |
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171 } |
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172 |
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173 |
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174 DEFBINOP (i_s_div, integer, scalar) |
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175 { |
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176 CAST_BINOP_ARGS (const octave_integer&, const octave_scalar&); |
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177 |
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178 double d = v2.double_value (); |
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179 |
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180 if (d == 0.0) |
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181 gripe_divide_by_zero (); |
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182 |
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183 return new octave_scalar (v1.double_value () / d); |
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184 } |
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185 |
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186 DEFBINOP (ldiv, integer, integer) |
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187 { |
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188 CAST_BINOP_ARGS (const octave_integer&, const octave_integer&); |
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189 |
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190 int d = v1.integer_value (); |
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191 |
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192 if (d == 0) |
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193 gripe_divide_by_zero (); |
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194 |
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195 return new octave_integer (v2.integer_value () / d); |
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196 } |
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197 |
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198 DEFBINOP_OP (lt, integer, integer, <) |
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199 DEFBINOP_OP (le, integer, integer, <=) |
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200 DEFBINOP_OP (eq, integer, integer, ==) |
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201 DEFBINOP_OP (ge, integer, integer, >=) |
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202 DEFBINOP_OP (gt, integer, integer, >) |
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203 DEFBINOP_OP (ne, integer, integer, !=) |
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204 |
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205 DEFBINOP_OP (el_mul, integer, integer, !=) |
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206 |
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207 DEFBINOP (el_div, integer, integer) |
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208 { |
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209 CAST_BINOP_ARGS (const octave_integer&, const octave_integer&); |
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210 |
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211 int d = v2.integer_value (); |
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212 |
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213 if (d == 0) |
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214 gripe_divide_by_zero (); |
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215 |
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216 return new octave_integer (v1.integer_value () / d); |
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217 } |
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218 |
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219 DEFBINOP (el_ldiv, integer, integer) |
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220 { |
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221 CAST_BINOP_ARGS (const octave_integer&, const octave_integer&); |
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222 |
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223 int d = v1.integer_value (); |
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224 |
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225 if (d == 0) |
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226 gripe_divide_by_zero (); |
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227 |
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228 return new octave_integer (v2.integer_value () / d); |
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229 } |
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230 |
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231 DEFBINOP_OP (el_and, integer, integer, &&) |
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232 DEFBINOP_OP (el_or, integer, integer, ||) |
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233 |
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234 DEFUN_DLD (make_int, args, , |
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235 "int_val = make_int (val)\n\ |
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236 \n\ |
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237 Creates an integer variable from VAL.") |
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238 { |
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239 static bool type_loaded = false; |
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240 |
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241 if (! type_loaded) |
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242 { |
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243 octave_integer::register_type (); |
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244 mlock ("make_int"); |
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245 |
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246 octave_stdout << "installing integer type at type-id = " |
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247 << octave_integer::static_type_id () << "\n"; |
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248 |
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249 INSTALL_UNOP (op_not, octave_integer, gnot); |
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250 INSTALL_UNOP (op_uminus, octave_integer, uminus); |
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251 INSTALL_UNOP (op_transpose, octave_integer, transpose); |
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252 INSTALL_UNOP (op_hermitian, octave_integer, hermitian); |
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253 |
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254 INSTALL_NCUNOP (op_incr, octave_integer, incr); |
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255 INSTALL_NCUNOP (op_decr, octave_integer, decr); |
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256 |
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257 INSTALL_BINOP (op_add, octave_integer, octave_integer, add); |
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258 INSTALL_BINOP (op_sub, octave_integer, octave_integer, sub); |
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259 INSTALL_BINOP (op_mul, octave_integer, octave_integer, mul); |
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260 INSTALL_BINOP (op_div, octave_integer, octave_integer, div); |
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261 INSTALL_BINOP (op_ldiv, octave_integer, octave_integer, ldiv); |
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262 INSTALL_BINOP (op_lt, octave_integer, octave_integer, lt); |
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263 INSTALL_BINOP (op_le, octave_integer, octave_integer, le); |
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264 INSTALL_BINOP (op_eq, octave_integer, octave_integer, eq); |
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265 INSTALL_BINOP (op_ge, octave_integer, octave_integer, ge); |
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266 INSTALL_BINOP (op_gt, octave_integer, octave_integer, gt); |
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267 INSTALL_BINOP (op_ne, octave_integer, octave_integer, ne); |
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268 INSTALL_BINOP (op_el_mul, octave_integer, octave_integer, el_mul); |
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269 INSTALL_BINOP (op_el_div, octave_integer, octave_integer, el_div); |
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270 INSTALL_BINOP (op_el_ldiv, octave_integer, octave_integer, el_ldiv); |
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271 INSTALL_BINOP (op_el_and, octave_integer, octave_integer, el_and); |
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272 INSTALL_BINOP (op_el_or, octave_integer, octave_integer, el_or); |
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273 |
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274 INSTALL_BINOP (op_div, octave_integer, octave_scalar, i_s_div); |
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275 } |
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276 |
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277 octave_value retval; |
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278 |
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279 if (args.length () == 1) |
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280 { |
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281 double d = args(0).double_value (); |
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282 |
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283 if (! error_state) |
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284 retval = octave_value (new octave_integer (NINT (d))); |
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285 } |
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286 else |
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287 usage ("make_int"); |
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288 |
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289 return retval; |
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290 } |
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291 |
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292 DEFUN_DLD (doit, args, , |
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293 "doit (I)") |
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294 { |
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295 octave_value_list retval; |
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296 |
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297 if (args(0).type_id () == octave_integer::static_type_id ()) |
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298 { |
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299 // At this point, we know we have a handle for an octave_integer |
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300 // object, so we can peek at the representation and extract the |
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301 // data. |
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302 |
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303 const octave_base_value& rep = args(0).get_rep (); |
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304 |
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305 int my_value = ((const octave_integer&) rep) . integer_value (); |
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306 |
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307 message ("doit", "your lucky number is: %d", my_value); |
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308 } |
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309 else |
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310 gripe_wrong_type_arg ("doit", args(0)); |
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311 |
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312 return retval; |
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313 } |
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314 |
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315 DEFINE_OCTAVE_ALLOCATOR (octave_integer); |
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316 |
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317 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_integer, "integer", "integer"); |
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318 |
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319 /* |
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320 ;;; Local Variables: *** |
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321 ;;; mode: C++ *** |
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322 ;;; End: *** |
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323 */ |