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// (C) Copyright Matt Borland 2021.
// Use, modification and distribution are subject to the
// Boost Software License, Version 1.0. (See accompanying file
// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#include <cmath>
#include <cstdint>
#include <limits>
#include <type_traits>
#include <boost/math/ccmath/abs.hpp>
#include <boost/math/ccmath/fabs.hpp>
#include <boost/math/tools/config.hpp>
#ifdef BOOST_HAS_FLOAT128
#include <boost/multiprecision/float128.hpp>
#endif
template <typename T>
void test()
{
static_assert(boost::math::ccmath::abs(T(3)) == 3);
static_assert(boost::math::ccmath::abs(T(-3)) == 3);
static_assert(boost::math::ccmath::abs(T(-0)) == 0);
static_assert(boost::math::ccmath::abs(-std::numeric_limits<T>::infinity()) == std::numeric_limits<T>::infinity());
if constexpr (std::numeric_limits<T>::has_quiet_NaN)
{
static_assert(boost::math::ccmath::abs(-std::numeric_limits<T>::quiet_NaN()) != std::numeric_limits<T>::quiet_NaN());
}
}
template <typename T>
void gpp_test()
{
static_assert(std::sin(T(0)) == 0);
constexpr T sin_1 = boost::math::ccmath::abs(std::sin(T(-1)));
static_assert(sin_1 > 0);
static_assert(sin_1 == T(0.841470984807896506652502321630298999622563060798371065672751709L));
}
template <typename T>
void fabs_test()
{
static_assert(boost::math::ccmath::fabs(T(3)) == 3);
static_assert(boost::math::ccmath::fabs(T(-3)) == 3);
static_assert(boost::math::ccmath::fabs(T(-0)) == 0);
static_assert(boost::math::ccmath::fabs(-std::numeric_limits<T>::infinity()) == std::numeric_limits<T>::infinity());
if constexpr (std::numeric_limits<T>::has_quiet_NaN)
{
static_assert(boost::math::ccmath::fabs(-std::numeric_limits<T>::quiet_NaN()) != std::numeric_limits<T>::quiet_NaN());
}
}
// Only test on platforms that provide BOOST_MATH_IS_CONSTANT_EVALUATED
#ifndef BOOST_MATH_NO_CONSTEXPR_DETECTION
int main()
{
test<float>();
test<double>();
#ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
test<long double>();
#endif
#if defined(BOOST_MATH_TEST_FLOAT128) && !defined(BOOST_MATH_USING_BUILTIN_CONSTANT_P)
test<boost::multiprecision::float128>();
#endif
test<int>();
test<long>();
test<long long>();
test<std::int32_t>();
test<std::int64_t>();
// Types that are convertible to int
test<short>();
#if CHAR_MIN != 0
test<char>();
#endif
// fabs
fabs_test<float>();
fabs_test<double>();
#ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
fabs_test<long double>();
#endif
#if defined(BOOST_MATH_TEST_FLOAT128) && !defined(BOOST_MATH_USING_BUILTIN_CONSTANT_P) && defined(BOOST_MATH_TEST_FLOAT128)
fabs_test<boost::multiprecision::float128>();
#endif
// Tests using glibcxx extensions that allow for some constexpr cmath
#if __GNUC__ >= 10
gpp_test<float>();
gpp_test<double>();
#ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
gpp_test<long double>();
#endif
#endif // glibcxx tests
return 0;
}
#else
int main()
{
return 0;
}
#endif
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