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/* |
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* Acme::ExtUtils::XSOne::Test::Calculator::Basic - Basic arithmetic operations |
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*/ |
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5
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#include |
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7
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/* C helper functions for Basic package */ |
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8
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4
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100
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static double basic_safe_divide(double a, double b, int *error) { |
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9
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2
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if (b == 0.0) { |
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10
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2
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*error = 1; |
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11
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return 0.0; |
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2
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} |
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2
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*error = 0; |
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14
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return a / b; |
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} |
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6
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17
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6
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100
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static double basic_clamp(double value, double min_val, double max_val) { |
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4
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100
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if (value < min_val) return min_val; |
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2
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if (value > max_val) return max_val; |
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return value; |
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} |
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6
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23
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6
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static double basic_percent(double value, double percent) { |
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return value * percent / 100.0; |
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} |
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MODULE = Acme::ExtUtils::XSOne::Test::Calculator PACKAGE = Acme::ExtUtils::XSOne::Test::Calculator::Basic |
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PROTOTYPES: DISABLE |
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31
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double |
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32
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add(a, b) |
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33
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double a |
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double b |
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CODE: |
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RETVAL = a + b; |
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add_to_history('+', a, b, RETVAL); |
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OUTPUT: |
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RETVAL |
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double |
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subtract(a, b) |
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double a |
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double b |
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CODE: |
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RETVAL = a - b; |
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add_to_history('-', a, b, RETVAL); |
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48
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OUTPUT: |
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RETVAL |
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51
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double |
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52
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multiply(a, b) |
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53
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double a |
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54
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double b |
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55
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CODE: |
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56
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RETVAL = a * b; |
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57
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add_to_history('*', a, b, RETVAL); |
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OUTPUT: |
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RETVAL |
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61
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double |
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divide(a, b) |
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double a |
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64
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double b |
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CODE: |
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66
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if (b == 0.0) { |
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67
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croak("Division by zero"); |
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68
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} |
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69
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RETVAL = a / b; |
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70
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add_to_history('/', a, b, RETVAL); |
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71
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OUTPUT: |
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72
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RETVAL |
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74
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double |
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modulo(a, b) |
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76
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double a |
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77
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double b |
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78
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CODE: |
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79
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if (b == 0.0) { |
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80
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croak("Modulo by zero"); |
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81
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} |
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82
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RETVAL = fmod(a, b); |
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83
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add_to_history('%', a, b, RETVAL); |
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84
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OUTPUT: |
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85
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RETVAL |
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86
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87
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double |
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negate(a) |
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double a |
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90
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CODE: |
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91
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RETVAL = -a; |
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92
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add_to_history('n', a, 0, RETVAL); |
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93
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OUTPUT: |
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94
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RETVAL |
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95
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96
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double |
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97
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absolute(a) |
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98
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double a |
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99
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CODE: |
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100
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RETVAL = fabs(a); |
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101
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add_to_history('a', a, 0, RETVAL); |
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102
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OUTPUT: |
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103
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RETVAL |
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104
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105
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double |
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106
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safe_divide(a, b) |
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107
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double a |
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108
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double b |
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109
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CODE: |
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110
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int error; |
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111
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RETVAL = basic_safe_divide(a, b, &error); |
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112
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if (error) { |
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113
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RETVAL = 0.0; /* Return 0 instead of croak */ |
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114
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} |
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115
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add_to_history('/', a, b, RETVAL); |
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116
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OUTPUT: |
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117
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RETVAL |
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118
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119
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double |
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120
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clamp(value, min_val, max_val) |
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121
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double value |
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122
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double min_val |
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123
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double max_val |
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124
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CODE: |
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125
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RETVAL = basic_clamp(value, min_val, max_val); |
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126
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OUTPUT: |
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127
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RETVAL |
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128
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129
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double |
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130
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percent(value, pct) |
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131
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double value |
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132
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double pct |
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133
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CODE: |
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134
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RETVAL = basic_percent(value, pct); |
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135
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add_to_history('%', value, pct, RETVAL); |
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136
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OUTPUT: |
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137
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RETVAL |
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138
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139
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void |
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140
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import(...) |
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141
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CODE: |
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142
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{ |
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143
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static const char *basic_exports[] = { |
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144
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"add", "subtract", "multiply", "divide", "modulo", |
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145
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"negate", "absolute", "safe_divide", "clamp", "percent" |
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146
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}; |
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147
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do_import(aTHX_ "Acme::ExtUtils::XSOne::Test::Calculator::Basic", |
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148
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basic_exports, 10, items, ax); |
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149
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} |