ReactOS 0.4.15-dev-7924-g5949c20
cmath_test.cpp
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1#define _STLP_DO_IMPORT_CSTD_FUNCTIONS
2
3#include <limits>
4#include <cmath>
5//We also test math functions imported from stdlib.h or
6//defined in cstdlib
7#include <cstdlib>
8
9#include "math_aux.h"
11
12//This test purpose is to check the right import of math.h C symbols
13//into the std namespace so we do not use the using namespace std
14//specification
15
16//
17// TestCase class
18//
19class CMathTest : public CPPUNIT_NS::TestCase
20{
22#if defined (STLPORT) && !defined (_STLP_USE_NAMESPACES)
24#endif
27
28 protected:
29 void import_checks();
30};
31
33
34//
35// tests implementation
36//
38{
39#if !defined (STLPORT) || defined (_STLP_USE_NAMESPACES)
40 int int_val = -1;
41 long long_val = -1l;
42 float float_val = -1.0f;
43 double double_val = -1.0;
44# if !defined (_STLP_NO_LONG_DOUBLE)
45 long double long_double_val = -1.0l;
46# endif
47
48 CPPUNIT_CHECK( are_equals(std::abs(int_val), -int_val) );
49 CPPUNIT_CHECK( are_equals(std::abs(long_val), -long_val) );
50 CPPUNIT_CHECK( are_equals(std::labs(long_val), -long_val) );
51 CPPUNIT_CHECK( are_equals(std::abs(float_val), -float_val) );
52 CPPUNIT_CHECK( are_equals(std::abs(double_val), -double_val) );
53# if !defined (_STLP_NO_LONG_DOUBLE)
54 CPPUNIT_CHECK( are_equals(std::abs(long_double_val), -long_double_val) );
55# endif
56
57 CPPUNIT_CHECK( are_equals(std::fabs(float_val), -float_val) );
58 CPPUNIT_CHECK( are_equals(std::fabs(double_val), -double_val) );
59# if !defined (_STLP_NO_LONG_DOUBLE)
60 CPPUNIT_CHECK( are_equals(std::fabs(long_double_val), -long_double_val) );
61# endif
62
63 std::div_t div_res = std::div(3, 2);
64 CPPUNIT_CHECK( div_res.quot == 1 );
65 CPPUNIT_CHECK( div_res.rem == 1 );
66 std::ldiv_t ldiv_res = std::ldiv(3l, 2l);
67 CPPUNIT_CHECK( ldiv_res.quot == 1l );
68 CPPUNIT_CHECK( ldiv_res.rem == 1l );
69 ldiv_res = std::div(3l, 2l);
70 CPPUNIT_CHECK( ldiv_res.quot == 1l );
71 CPPUNIT_CHECK( ldiv_res.rem == 1l );
72
73 std::srand(2);
74 int rand_val = std::rand();
75 CPPUNIT_CHECK( rand_val >= 0 && rand_val <= RAND_MAX );
76
77 CPPUNIT_CHECK( are_equals(std::floor(1.5), 1.0) );
78 CPPUNIT_CHECK( are_equals(std::ceil(1.5), 2.0) );
79 CPPUNIT_CHECK( are_equals(std::fmod(1.5, 1.0), 0.5) );
80 CPPUNIT_CHECK( are_equals(std::sqrt(4.0), 2.0) );
81 CPPUNIT_CHECK( are_equals(std::pow(2.0, 2), 4.0) );
82 /*
83 * Uncomment the following to check that it generates an ambiguous call
84 * as there is no Standard pow(int, int) function only pow(double, int),
85 * pow(float, int) and some others...
86 * If it do not generate a compile time error it should at least give
87 * the good result.
88 */
89 //CPPUNIT_CHECK( are_equals(std::pow(10, -2), 0.01) );
90 CPPUNIT_CHECK( are_equals(std::pow(10.0, -2), 0.01) );
91 CPPUNIT_CHECK( are_equals(std::exp(0.0), 1.0) );
92 CPPUNIT_CHECK( are_equals(std::log(std::exp(1.0)), 1.0) );
93 CPPUNIT_CHECK( are_equals(std::log10(100.0), 2.0) );
94# if !defined (STLPORT) || !defined (_STLP_USING_PLATFORM_SDK_COMPILER) || !defined (_WIN64)
95 CPPUNIT_CHECK( are_equals(std::modf(100.5, &double_val), 0.5) );
96 CPPUNIT_CHECK( are_equals(double_val, 100.0) );
97# endif
98 double_val = std::frexp(8.0, &int_val);
99 CPPUNIT_CHECK( are_equals(double_val * std::pow(2.0, int_val), 8.0) );
100 CPPUNIT_CHECK( are_equals(std::ldexp(1.0, 2), 4.0) );
101 CPPUNIT_CHECK( are_equals(std::cos(std::acos(1.0)), 1.0) );
102 CPPUNIT_CHECK( are_equals(std::sin(std::asin(1.0)), 1.0) );
103 CPPUNIT_CHECK( are_equals(std::tan(std::atan(1.0)), 1.0) );
104 CPPUNIT_CHECK( are_equals(std::tan(std::atan2(1.0, 1.0)), 1.0) );
105 CPPUNIT_CHECK( are_equals(std::cosh(0.0), 1.0) );
106 CPPUNIT_CHECK( are_equals(std::sinh(0.0), 0.0) );
107# if !defined (STLPORT) || !defined (_STLP_USING_PLATFORM_SDK_COMPILER) || !defined (_M_AMD64)
108 CPPUNIT_CHECK( are_equals(std::tanh(0.0), 0.0) );
109# endif
110
111 CPPUNIT_CHECK( are_equals(std::floor(1.5f), 1.0f) );
112 CPPUNIT_CHECK( are_equals(std::ceil(1.5f), 2.0f) );
113 CPPUNIT_CHECK( are_equals(std::fmod(1.5f, 1.0f), 0.5f) );
114 CPPUNIT_CHECK( are_equals(std::sqrt(4.0f), 2.0f) );
115 CPPUNIT_CHECK( are_equals(std::pow(2.0f, 2), 4.0f) );
116 CPPUNIT_CHECK( are_equals(std::exp(0.0f), 1.0f) );
117 CPPUNIT_CHECK( are_equals(std::log(std::exp(1.0f)), 1.0f) );
118 CPPUNIT_CHECK( are_equals(std::log10(100.0f), 2.0f) );
119# if !defined (STLPORT) || !defined (_STLP_USING_PLATFORM_SDK_COMPILER) || !defined (_WIN64)
120 CPPUNIT_CHECK( are_equals(std::modf(100.5f, &float_val), 0.5f) );
121 CPPUNIT_CHECK( are_equals(float_val, 100.0f) );
122# endif
123 float_val = std::frexp(8.0f, &int_val);
124 CPPUNIT_CHECK( are_equals(float_val * std::pow(2.0f, int_val), 8.0f) );
125 CPPUNIT_CHECK( are_equals(std::ldexp(1.0f, 2), 4.0f) );
126 CPPUNIT_CHECK( are_equals(std::cos(std::acos(1.0f)), 1.0f) );
127 CPPUNIT_CHECK( are_equals(std::sin(std::asin(1.0f)), 1.0f) );
128 CPPUNIT_CHECK( are_equals(std::tan(std::atan(1.0f)), 1.0f) );
129 CPPUNIT_CHECK( are_equals(std::tan(std::atan2(1.0f, 1.0f)), 1.0f) );
130 CPPUNIT_CHECK( are_equals(std::cosh(0.0f), 1.0f) );
131 CPPUNIT_CHECK( are_equals(std::sinh(0.0f), 0.0f) );
132# if !defined (STLPORT) || !defined (_STLP_USING_PLATFORM_SDK_COMPILER) || !defined (_M_AMD64)
133 CPPUNIT_CHECK( are_equals(std::tanh(0.0f), 0.0f) );
134# endif
135
136# if !defined (_STLP_NO_LONG_DOUBLE)
137 CPPUNIT_CHECK( are_equals(std::floor(1.5l), 1.0l) );
138 CPPUNIT_CHECK( are_equals(std::ceil(1.5l), 2.0l) );
139 CPPUNIT_CHECK( are_equals(std::fmod(1.5l, 1.0l), 0.5l) );
140 CPPUNIT_CHECK( are_equals(std::sqrt(4.0l), 2.0l) );
141 CPPUNIT_CHECK( are_equals(std::pow(2.0l, 2), 4.0l) );
142 CPPUNIT_CHECK( are_equals(std::exp(0.0l), 1.0l) );
143 CPPUNIT_CHECK( are_equals(std::log(std::exp(1.0l)), 1.0l) );
144 CPPUNIT_CHECK( are_equals(std::log10(100.0l), 2.0l) );
145# if !defined (STLPORT) || !defined (_STLP_USING_PLATFORM_SDK_COMPILER) || !defined (_WIN64)
146 CPPUNIT_CHECK( are_equals(std::modf(100.5l, &long_double_val), 0.5l) );
147 CPPUNIT_CHECK( are_equals(long_double_val, 100.0l) );
148# endif
149 long_double_val = std::frexp(8.0l, &int_val);
150 CPPUNIT_CHECK( are_equals(long_double_val * std::pow(2.0l, int_val), 8.0l) );
151 CPPUNIT_CHECK( are_equals(std::ldexp(1.0l, 2), 4.0l) );
152 CPPUNIT_CHECK( are_equals(std::cos(std::acos(1.0l)), 1.0l) );
153 CPPUNIT_CHECK( are_equals(std::sin(std::asin(1.0l)), 1.0l) );
154 CPPUNIT_CHECK( are_equals(std::tan(0.0l), 0.0l) );
155 CPPUNIT_CHECK( are_equals(std::atan(0.0l), 0.0l) );
156 CPPUNIT_CHECK( are_equals(std::atan2(0.0l, 1.0l), 0.0l) );
157 CPPUNIT_CHECK( are_equals(std::cosh(0.0l), 1.0l) );
158 CPPUNIT_CHECK( are_equals(std::sinh(0.0l), 0.0l) );
159# if !defined (STLPORT) || !defined (_STLP_USING_PLATFORM_SDK_COMPILER) || !defined (_M_AMD64)
160 CPPUNIT_CHECK( are_equals(std::tanh(0.0l), 0.0l) );
161# endif
162# endif
163
164 CPPUNIT_CHECK( are_equals(std::sqrt(std::sqrt(std::sqrt(256.0))), 2.0) );
165 CPPUNIT_CHECK( are_equals(std::sqrt(std::sqrt(std::sqrt(256.0f))), 2.0f) );
166# if !defined (_STLP_NO_LONG_DOUBLE)
167 CPPUNIT_CHECK( are_equals(std::sqrt(std::sqrt(std::sqrt(256.0l))), 2.0l) );
168# endif
169#endif
170}
CPPUNIT_TEST_SUITE(CMathTest)
CPPUNIT_TEST_SUITE_END()
void import_checks()
Definition: cmath_test.cpp:37
CPPUNIT_TEST(import_checks)
#define CPPUNIT_CHECK(X)
Definition: cppunit_mini.h:195
#define CPPUNIT_IGNORE
Definition: cppunit_mini.h:185
#define CPPUNIT_TEST_SUITE_REGISTRATION(X)
Definition: cppunit_mini.h:193
#define RAND_MAX
Definition: stdlib.h:87
bool are_equals(_Tp val, _Tp ref)
Definition: math_aux.h:19