1 | // |
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2 | // Lol Engine |
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3 | // |
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4 | // Copyright: (c) 2010-2011 Sam Hocevar <sam@hocevar.net> |
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5 | // This program is free software; you can redistribute it and/or |
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6 | // modify it under the terms of the Do What The Fuck You Want To |
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7 | // Public License, Version 2, as published by Sam Hocevar. See |
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8 | // http://sam.zoy.org/projects/COPYING.WTFPL for more details. |
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9 | // |
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10 | |
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11 | #if defined HAVE_CONFIG_H |
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12 | # include "config.h" |
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13 | #endif |
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14 | |
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15 | #include <cmath> |
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16 | |
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17 | #include "core.h" |
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18 | #include "lol/unit.h" |
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19 | |
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20 | namespace lol |
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21 | { |
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22 | |
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23 | LOLUNIT_FIXTURE(TrigTest) |
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24 | { |
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25 | public: |
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26 | LOLUNIT_TEST(test_sin) |
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27 | { |
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28 | for (int i = -10000; i < 10000; i++) |
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29 | { |
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30 | double f = (double)i * (1.0 / 1000.0); |
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31 | #if defined __GNUC__ |
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32 | double a = __builtin_sin(f); |
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33 | #else |
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34 | double a = sin(f); |
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35 | #endif |
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36 | double b = lol_sin(f); |
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37 | LOLUNIT_SET_CONTEXT(f); |
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38 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a, b, fabs(f) * 1e-11); |
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39 | } |
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40 | |
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41 | for (int i = -10000; i < 10000; i++) |
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42 | { |
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43 | double f = (double)i * (1.0 / 100000.0); |
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44 | #if defined __GNUC__ |
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45 | double a = __builtin_sin(f); |
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46 | #else |
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47 | double a = sin(f); |
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48 | #endif |
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49 | double b = lol_sin(f); |
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50 | LOLUNIT_SET_CONTEXT(f); |
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51 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a, b, fabs(f) * 1e-11); |
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52 | } |
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53 | } |
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54 | |
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55 | LOLUNIT_TEST(test_cos) |
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56 | { |
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57 | for (int i = -10000; i < 10000; i++) |
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58 | { |
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59 | double f = (double)i * (1.0 / 1000.0); |
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60 | #if defined __GNUC__ |
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61 | double a = __builtin_cos(f); |
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62 | #else |
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63 | double a = cos(f); |
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64 | #endif |
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65 | double b = lol_cos(f); |
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66 | LOLUNIT_SET_CONTEXT(f); |
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67 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a, b, fabs(f) * 1e-11); |
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68 | } |
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69 | |
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70 | for (int i = -10000; i < 10000; i++) |
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71 | { |
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72 | double f = (double)i * (1.0 / 100000.0); |
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73 | #if defined __GNUC__ |
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74 | double a = __builtin_cos(f); |
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75 | #else |
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76 | double a = cos(f); |
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77 | #endif |
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78 | double b = lol_cos(f); |
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79 | LOLUNIT_SET_CONTEXT(f); |
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80 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a, b, fabs(f) * 1e-11); |
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81 | } |
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82 | } |
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83 | |
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84 | LOLUNIT_TEST(test_sincos) |
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85 | { |
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86 | for (int i = -10000; i < 10000; i++) |
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87 | { |
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88 | double f = (double)i * (1.0 / 1000.0); |
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89 | #if defined __GNUC__ |
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90 | double a1 = __builtin_sin(f); |
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91 | double a2 = __builtin_cos(f); |
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92 | #else |
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93 | double a1 = sin(f); |
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94 | double a2 = cos(f); |
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95 | #endif |
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96 | double b1, b2; |
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97 | lol_sincos(f, &b1, &b2); |
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98 | LOLUNIT_SET_CONTEXT(f); |
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99 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a1, b1, fabs(f) * 1e-11); |
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100 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a2, b2, fabs(f) * 1e-11); |
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101 | } |
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102 | |
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103 | for (int i = -10000; i < 10000; i++) |
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104 | { |
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105 | double f = (double)i * (1.0 / 100000.0); |
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106 | #if defined __GNUC__ |
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107 | double a1 = __builtin_sin(f); |
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108 | double a2 = __builtin_cos(f); |
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109 | #else |
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110 | double a1 = sin(f); |
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111 | double a2 = cos(f); |
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112 | #endif |
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113 | double b1, b2; |
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114 | lol_sincos(f, &b1, &b2); |
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115 | LOLUNIT_SET_CONTEXT(f); |
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116 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a1, b1, fabs(f) * 1e-11); |
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117 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a2, b2, fabs(f) * 1e-11); |
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118 | } |
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119 | } |
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120 | |
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121 | LOLUNIT_TEST(test_tan) |
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122 | { |
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123 | for (int i = -100000; i < 100000; i++) |
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124 | { |
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125 | double f = (double)i * (1.0 / 10000.0); |
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126 | #if defined __GNUC__ |
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127 | double a = __builtin_tan(f); |
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128 | #else |
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129 | double a = tan(f); |
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130 | #endif |
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131 | double b = lol_tan(f); |
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132 | LOLUNIT_SET_CONTEXT(f); |
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133 | if (fabs(a) > 1e4) |
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134 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a, b, fabs(a) * fabs(a) * 1e-11); |
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135 | else if (fabs(a) > 1.0) |
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136 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a, b, fabs(a) * 1e-11); |
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137 | else |
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138 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a, b, fabs(f) * 1e-11); |
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139 | } |
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140 | |
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141 | for (int i = -10000; i < 10000; i++) |
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142 | { |
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143 | double f = (double)i * (1.0 / 100000.0); |
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144 | #if defined __GNUC__ |
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145 | double a = __builtin_tan(f); |
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146 | #else |
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147 | double a = tan(f); |
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148 | #endif |
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149 | double b = lol_tan(f); |
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150 | LOLUNIT_SET_CONTEXT(f); |
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151 | if (fabs(a) > 1e4) |
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152 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a, b, fabs(a) * fabs(a) * 1e-11); |
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153 | else if (fabs(a) > 1.0) |
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154 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a, b, fabs(a) * 1e-11); |
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155 | else |
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156 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a, b, fabs(f) * 1e-11); |
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157 | } |
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158 | } |
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159 | }; |
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160 | |
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161 | } /* namespace lol */ |
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162 | |
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