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 <cppunit/extensions/HelperMacros.h> |
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16 | #include <cppunit/TestCaller.h> |
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17 | #include <cppunit/TestCase.h> |
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18 | #include <cppunit/TestSuite.h> |
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19 | |
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20 | #include <cmath> |
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21 | |
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22 | #include "core.h" |
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23 | |
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24 | namespace lol |
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25 | { |
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26 | |
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27 | class TrigTest : public CppUnit::TestCase |
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28 | { |
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29 | CPPUNIT_TEST_SUITE(TrigTest); |
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30 | CPPUNIT_TEST(test_sin); |
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31 | CPPUNIT_TEST_SUITE_END(); |
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32 | |
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33 | public: |
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34 | TrigTest() : CppUnit::TestCase("Trigonometry Test") {} |
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35 | |
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36 | void setUp() {} |
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37 | |
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38 | void tearDown() {} |
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39 | |
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40 | void test_sin() |
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41 | { |
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42 | for (int i = -10000; i < 10000; i++) |
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43 | { |
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44 | double f = (double)i * (1.0 / 1000.0); |
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45 | double a = __builtin_sin(f); |
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46 | double b = lol_sin(f); |
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47 | CPPUNIT_ASSERT(fabs(a - b) <= fabs(f) * 1e-11); |
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48 | } |
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49 | |
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50 | for (int i = -10000; i < 10000; i++) |
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51 | { |
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52 | double f = (double)i * (1.0 / 100000.0); |
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53 | double a = __builtin_sin(f); |
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54 | double b = lol_sin(f); |
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55 | CPPUNIT_ASSERT(fabs(a - b) <= fabs(f) * 1e-11); |
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56 | } |
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57 | |
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58 | for (int i = -10000; i < 10000; i++) |
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59 | { |
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60 | double f = (double)i * (1.0 / 1000.0); |
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61 | double a = __builtin_cos(f); |
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62 | double b = lol_cos(f); |
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63 | CPPUNIT_ASSERT(fabs(a - b) <= fabs(f) * 1e-11); |
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64 | } |
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65 | |
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66 | for (int i = -10000; i < 10000; i++) |
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67 | { |
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68 | double f = (double)i * (1.0 / 100000.0); |
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69 | double a = __builtin_cos(f); |
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70 | double b = lol_cos(f); |
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71 | CPPUNIT_ASSERT(fabs(a - b) <= fabs(f) * 1e-11); |
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72 | } |
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73 | |
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74 | for (int i = -10000; i < 10000; i++) |
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75 | { |
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76 | double f = (double)i * (1.0 / 1000.0); |
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77 | double a1 = __builtin_sin(f); |
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78 | double a2 = __builtin_cos(f); |
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79 | double b1, b2; |
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80 | lol_sincos(f, &b1, &b2); |
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81 | CPPUNIT_ASSERT(fabs(a1 - b1) <= fabs(f) * 1e-11); |
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82 | CPPUNIT_ASSERT(fabs(a2 - b2) <= fabs(f) * 1e-11); |
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83 | } |
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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 / 100000.0); |
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88 | double a1 = __builtin_sin(f); |
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89 | double a2 = __builtin_cos(f); |
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90 | double b1, b2; |
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91 | lol_sincos(f, &b1, &b2); |
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92 | CPPUNIT_ASSERT(fabs(a1 - b1) <= fabs(f) * 1e-11); |
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93 | CPPUNIT_ASSERT(fabs(a2 - b2) <= fabs(f) * 1e-11); |
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94 | } |
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95 | |
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96 | for (int i = -10000; i < 10000; i++) |
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97 | { |
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98 | double f = (double)i * (1.0 / 1000.0); |
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99 | double a = __builtin_tan(f); |
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100 | double b = lol_tan(f); |
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101 | CPPUNIT_ASSERT(fabs(a - b) <= fabs(a) * 1e-11); |
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102 | } |
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103 | |
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104 | for (int i = -10000; i < 10000; i++) |
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105 | { |
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106 | double f = (double)i * (1.0 / 100000.0); |
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107 | double a = __builtin_tan(f); |
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108 | double b = lol_tan(f); |
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109 | CPPUNIT_ASSERT(fabs(a - b) <= fabs(a) * 1e-11); |
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110 | } |
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111 | } |
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112 | }; |
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113 | |
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114 | CPPUNIT_TEST_SUITE_REGISTRATION(TrigTest); |
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115 | |
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116 | } /* namespace lol */ |
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117 | |
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