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reactos/sdk/lib/3rdparty/stlport/test/unit/cmath_test.cpp

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#define _STLP_DO_IMPORT_CSTD_FUNCTIONS
#include <limits>
#include <cmath>
//We also test math functions imported from stdlib.h or
//defined in cstdlib
#include <cstdlib>
#include "math_aux.h"
#include "cppunit/cppunit_proxy.h"
//This test purpose is to check the right import of math.h C symbols
//into the std namespace so we do not use the using namespace std
//specification
//
// TestCase class
//
class CMathTest : public CPPUNIT_NS::TestCase
{
CPPUNIT_TEST_SUITE(CMathTest);
#if defined (STLPORT) && !defined (_STLP_USE_NAMESPACES)
CPPUNIT_IGNORE;
#endif
CPPUNIT_TEST(import_checks);
CPPUNIT_TEST_SUITE_END();
protected:
void import_checks();
};
CPPUNIT_TEST_SUITE_REGISTRATION(CMathTest);
//
// tests implementation
//
void CMathTest::import_checks()
{
#if !defined (STLPORT) || defined (_STLP_USE_NAMESPACES)
int int_val = -1;
long long_val = -1l;
float float_val = -1.0f;
double double_val = -1.0;
# if !defined (_STLP_NO_LONG_DOUBLE)
long double long_double_val = -1.0l;
# endif
CPPUNIT_CHECK( are_equals(std::abs(int_val), -int_val) );
CPPUNIT_CHECK( are_equals(std::abs(long_val), -long_val) );
CPPUNIT_CHECK( are_equals(std::labs(long_val), -long_val) );
CPPUNIT_CHECK( are_equals(std::abs(float_val), -float_val) );
CPPUNIT_CHECK( are_equals(std::abs(double_val), -double_val) );
# if !defined (_STLP_NO_LONG_DOUBLE)
CPPUNIT_CHECK( are_equals(std::abs(long_double_val), -long_double_val) );
# endif
CPPUNIT_CHECK( are_equals(std::fabs(float_val), -float_val) );
CPPUNIT_CHECK( are_equals(std::fabs(double_val), -double_val) );
# if !defined (_STLP_NO_LONG_DOUBLE)
CPPUNIT_CHECK( are_equals(std::fabs(long_double_val), -long_double_val) );
# endif
std::div_t div_res = std::div(3, 2);
CPPUNIT_CHECK( div_res.quot == 1 );
CPPUNIT_CHECK( div_res.rem == 1 );
std::ldiv_t ldiv_res = std::ldiv(3l, 2l);
CPPUNIT_CHECK( ldiv_res.quot == 1l );
CPPUNIT_CHECK( ldiv_res.rem == 1l );
ldiv_res = std::div(3l, 2l);
CPPUNIT_CHECK( ldiv_res.quot == 1l );
CPPUNIT_CHECK( ldiv_res.rem == 1l );
std::srand(2);
int rand_val = std::rand();
CPPUNIT_CHECK( rand_val >= 0 && rand_val <= RAND_MAX );
CPPUNIT_CHECK( are_equals(std::floor(1.5), 1.0) );
CPPUNIT_CHECK( are_equals(std::ceil(1.5), 2.0) );
CPPUNIT_CHECK( are_equals(std::fmod(1.5, 1.0), 0.5) );
CPPUNIT_CHECK( are_equals(std::sqrt(4.0), 2.0) );
CPPUNIT_CHECK( are_equals(std::pow(2.0, 2), 4.0) );
/*
* Uncomment the following to check that it generates an ambiguous call
* as there is no Standard pow(int, int) function only pow(double, int),
* pow(float, int) and some others...
* If it do not generate a compile time error it should at least give
* the good result.
*/
//CPPUNIT_CHECK( are_equals(std::pow(10, -2), 0.01) );
CPPUNIT_CHECK( are_equals(std::pow(10.0, -2), 0.01) );
CPPUNIT_CHECK( are_equals(std::exp(0.0), 1.0) );
CPPUNIT_CHECK( are_equals(std::log(std::exp(1.0)), 1.0) );
CPPUNIT_CHECK( are_equals(std::log10(100.0), 2.0) );
# if !defined (STLPORT) || !defined (_STLP_USING_PLATFORM_SDK_COMPILER) || !defined (_WIN64)
CPPUNIT_CHECK( are_equals(std::modf(100.5, &double_val), 0.5) );
CPPUNIT_CHECK( are_equals(double_val, 100.0) );
# endif
double_val = std::frexp(8.0, &int_val);
CPPUNIT_CHECK( are_equals(double_val * std::pow(2.0, int_val), 8.0) );
CPPUNIT_CHECK( are_equals(std::ldexp(1.0, 2), 4.0) );
CPPUNIT_CHECK( are_equals(std::cos(std::acos(1.0)), 1.0) );
CPPUNIT_CHECK( are_equals(std::sin(std::asin(1.0)), 1.0) );
CPPUNIT_CHECK( are_equals(std::tan(std::atan(1.0)), 1.0) );
CPPUNIT_CHECK( are_equals(std::tan(std::atan2(1.0, 1.0)), 1.0) );
CPPUNIT_CHECK( are_equals(std::cosh(0.0), 1.0) );
CPPUNIT_CHECK( are_equals(std::sinh(0.0), 0.0) );
# if !defined (STLPORT) || !defined (_STLP_USING_PLATFORM_SDK_COMPILER) || !defined (_M_AMD64)
CPPUNIT_CHECK( are_equals(std::tanh(0.0), 0.0) );
# endif
CPPUNIT_CHECK( are_equals(std::floor(1.5f), 1.0f) );
CPPUNIT_CHECK( are_equals(std::ceil(1.5f), 2.0f) );
CPPUNIT_CHECK( are_equals(std::fmod(1.5f, 1.0f), 0.5f) );
CPPUNIT_CHECK( are_equals(std::sqrt(4.0f), 2.0f) );
CPPUNIT_CHECK( are_equals(std::pow(2.0f, 2), 4.0f) );
CPPUNIT_CHECK( are_equals(std::exp(0.0f), 1.0f) );
CPPUNIT_CHECK( are_equals(std::log(std::exp(1.0f)), 1.0f) );
CPPUNIT_CHECK( are_equals(std::log10(100.0f), 2.0f) );
# if !defined (STLPORT) || !defined (_STLP_USING_PLATFORM_SDK_COMPILER) || !defined (_WIN64)
CPPUNIT_CHECK( are_equals(std::modf(100.5f, &float_val), 0.5f) );
CPPUNIT_CHECK( are_equals(float_val, 100.0f) );
# endif
float_val = std::frexp(8.0f, &int_val);
CPPUNIT_CHECK( are_equals(float_val * std::pow(2.0f, int_val), 8.0f) );
CPPUNIT_CHECK( are_equals(std::ldexp(1.0f, 2), 4.0f) );
CPPUNIT_CHECK( are_equals(std::cos(std::acos(1.0f)), 1.0f) );
CPPUNIT_CHECK( are_equals(std::sin(std::asin(1.0f)), 1.0f) );
CPPUNIT_CHECK( are_equals(std::tan(std::atan(1.0f)), 1.0f) );
CPPUNIT_CHECK( are_equals(std::tan(std::atan2(1.0f, 1.0f)), 1.0f) );
CPPUNIT_CHECK( are_equals(std::cosh(0.0f), 1.0f) );
CPPUNIT_CHECK( are_equals(std::sinh(0.0f), 0.0f) );
# if !defined (STLPORT) || !defined (_STLP_USING_PLATFORM_SDK_COMPILER) || !defined (_M_AMD64)
CPPUNIT_CHECK( are_equals(std::tanh(0.0f), 0.0f) );
# endif
# if !defined (_STLP_NO_LONG_DOUBLE)
CPPUNIT_CHECK( are_equals(std::floor(1.5l), 1.0l) );
CPPUNIT_CHECK( are_equals(std::ceil(1.5l), 2.0l) );
CPPUNIT_CHECK( are_equals(std::fmod(1.5l, 1.0l), 0.5l) );
CPPUNIT_CHECK( are_equals(std::sqrt(4.0l), 2.0l) );
CPPUNIT_CHECK( are_equals(std::pow(2.0l, 2), 4.0l) );
CPPUNIT_CHECK( are_equals(std::exp(0.0l), 1.0l) );
CPPUNIT_CHECK( are_equals(std::log(std::exp(1.0l)), 1.0l) );
CPPUNIT_CHECK( are_equals(std::log10(100.0l), 2.0l) );
# if !defined (STLPORT) || !defined (_STLP_USING_PLATFORM_SDK_COMPILER) || !defined (_WIN64)
CPPUNIT_CHECK( are_equals(std::modf(100.5l, &long_double_val), 0.5l) );
CPPUNIT_CHECK( are_equals(long_double_val, 100.0l) );
# endif
long_double_val = std::frexp(8.0l, &int_val);
CPPUNIT_CHECK( are_equals(long_double_val * std::pow(2.0l, int_val), 8.0l) );
CPPUNIT_CHECK( are_equals(std::ldexp(1.0l, 2), 4.0l) );
CPPUNIT_CHECK( are_equals(std::cos(std::acos(1.0l)), 1.0l) );
CPPUNIT_CHECK( are_equals(std::sin(std::asin(1.0l)), 1.0l) );
CPPUNIT_CHECK( are_equals(std::tan(0.0l), 0.0l) );
CPPUNIT_CHECK( are_equals(std::atan(0.0l), 0.0l) );
CPPUNIT_CHECK( are_equals(std::atan2(0.0l, 1.0l), 0.0l) );
CPPUNIT_CHECK( are_equals(std::cosh(0.0l), 1.0l) );
CPPUNIT_CHECK( are_equals(std::sinh(0.0l), 0.0l) );
# if !defined (STLPORT) || !defined (_STLP_USING_PLATFORM_SDK_COMPILER) || !defined (_M_AMD64)
CPPUNIT_CHECK( are_equals(std::tanh(0.0l), 0.0l) );
# endif
# endif
CPPUNIT_CHECK( are_equals(std::sqrt(std::sqrt(std::sqrt(256.0))), 2.0) );
CPPUNIT_CHECK( are_equals(std::sqrt(std::sqrt(std::sqrt(256.0f))), 2.0f) );
# if !defined (_STLP_NO_LONG_DOUBLE)
CPPUNIT_CHECK( are_equals(std::sqrt(std::sqrt(std::sqrt(256.0l))), 2.0l) );
# endif
#endif
}
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