| 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 | LOLUNIT_TEST(Sin) |
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| 26 | { |
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| 27 | for (int i = -10000; i < 10000; i++) |
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| 28 | { |
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| 29 | double f = (double)i * (1.0 / 1000.0); |
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| 30 | #if defined __GNUC__ |
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| 31 | double a = __builtin_sin(f); |
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| 32 | #else |
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| 33 | double a = sin(f); |
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| 34 | #endif |
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| 35 | double b = lol_sin(f); |
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| 36 | LOLUNIT_SET_CONTEXT(f); |
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| 37 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a, b, std::fabs(f) * 1e-11); |
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| 38 | } |
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| 39 | |
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| 40 | for (int i = -10000; i < 10000; i++) |
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| 41 | { |
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| 42 | double f = (double)i * (1.0 / 100000.0); |
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| 43 | #if defined __GNUC__ |
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| 44 | double a = __builtin_sin(f); |
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| 45 | #else |
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| 46 | double a = sin(f); |
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| 47 | #endif |
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| 48 | double b = lol_sin(f); |
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| 49 | LOLUNIT_SET_CONTEXT(f); |
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| 50 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a, b, std::fabs(f) * 1e-11); |
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| 51 | } |
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| 52 | } |
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| 53 | |
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| 54 | LOLUNIT_TEST(Cos) |
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| 55 | { |
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| 56 | for (int i = -10000; i < 10000; i++) |
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| 57 | { |
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| 58 | double f = (double)i * (1.0 / 1000.0); |
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| 59 | #if defined __GNUC__ |
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| 60 | double a = __builtin_cos(f); |
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| 61 | #else |
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| 62 | double a = cos(f); |
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| 63 | #endif |
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| 64 | double b = lol_cos(f); |
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| 65 | LOLUNIT_SET_CONTEXT(f); |
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| 66 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a, b, std::fabs(f) * 1e-11); |
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| 67 | } |
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| 68 | |
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| 69 | for (int i = -10000; i < 10000; i++) |
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| 70 | { |
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| 71 | double f = (double)i * (1.0 / 100000.0); |
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| 72 | #if defined __GNUC__ |
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| 73 | double a = __builtin_cos(f); |
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| 74 | #else |
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| 75 | double a = cos(f); |
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| 76 | #endif |
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| 77 | double b = lol_cos(f); |
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| 78 | LOLUNIT_SET_CONTEXT(f); |
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| 79 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a, b, std::fabs(f) * 1e-11); |
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| 80 | } |
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| 81 | } |
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| 82 | |
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| 83 | LOLUNIT_TEST(SinCos) |
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| 84 | { |
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| 85 | for (int i = -10000; i < 10000; i++) |
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| 86 | { |
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| 87 | double f = (double)i * (1.0 / 1000.0); |
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| 88 | #if defined __GNUC__ |
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| 89 | double a1 = __builtin_sin(f); |
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| 90 | double a2 = __builtin_cos(f); |
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| 91 | #else |
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| 92 | double a1 = sin(f); |
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| 93 | double a2 = cos(f); |
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| 94 | #endif |
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| 95 | double b1, b2; |
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| 96 | lol_sincos(f, &b1, &b2); |
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| 97 | LOLUNIT_SET_CONTEXT(f); |
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| 98 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a1, b1, std::fabs(f) * 1e-11); |
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| 99 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a2, b2, std::fabs(f) * 1e-11); |
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| 100 | } |
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| 101 | |
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| 102 | for (int i = -10000; i < 10000; i++) |
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| 103 | { |
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| 104 | double f = (double)i * (1.0 / 100000.0); |
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| 105 | #if defined __GNUC__ |
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| 106 | double a1 = __builtin_sin(f); |
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| 107 | double a2 = __builtin_cos(f); |
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| 108 | #else |
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| 109 | double a1 = sin(f); |
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| 110 | double a2 = cos(f); |
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| 111 | #endif |
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| 112 | double b1, b2; |
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| 113 | lol_sincos(f, &b1, &b2); |
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| 114 | LOLUNIT_SET_CONTEXT(f); |
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| 115 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a1, b1, std::fabs(f) * 1e-11); |
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| 116 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a2, b2, std::fabs(f) * 1e-11); |
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| 117 | } |
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| 118 | } |
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| 119 | |
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| 120 | LOLUNIT_TEST(Tan) |
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| 121 | { |
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| 122 | for (int i = -100000; i < 100000; i++) |
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| 123 | { |
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| 124 | double f = (double)i * (1.0 / 10000.0); |
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| 125 | #if defined __GNUC__ |
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| 126 | double a = __builtin_tan(f); |
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| 127 | #else |
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| 128 | double a = tan(f); |
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| 129 | #endif |
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| 130 | double b = lol_tan(f); |
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| 131 | LOLUNIT_SET_CONTEXT(f); |
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| 132 | if (std::fabs(a) > 1e4) |
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| 133 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a, b, std::fabs(a) * std::fabs(a) * 1e-11); |
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| 134 | else if (std::fabs(a) > 1.0) |
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| 135 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a, b, std::fabs(a) * 1e-11); |
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| 136 | else |
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| 137 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a, b, std::fabs(f) * 1e-11); |
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| 138 | } |
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| 139 | |
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| 140 | for (int i = -10000; i < 10000; i++) |
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| 141 | { |
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| 142 | double f = (double)i * (1.0 / 100000.0); |
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| 143 | #if defined __GNUC__ |
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| 144 | double a = __builtin_tan(f); |
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| 145 | #else |
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| 146 | double a = tan(f); |
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| 147 | #endif |
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| 148 | double b = lol_tan(f); |
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| 149 | LOLUNIT_SET_CONTEXT(f); |
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| 150 | if (std::fabs(a) > 1e4) |
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| 151 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a, b, std::fabs(a) * std::fabs(a) * 1e-11); |
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| 152 | else if (std::fabs(a) > 1.0) |
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| 153 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a, b, std::fabs(a) * 1e-11); |
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| 154 | else |
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| 155 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a, b, std::fabs(f) * 1e-11); |
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| 156 | } |
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| 157 | } |
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| 158 | }; |
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| 159 | |
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| 160 | } /* namespace lol */ |
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| 161 | |
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