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112 lines
3.0 KiB
C++
112 lines
3.0 KiB
C++
// (C) Copyright Matt Borland 2021.
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// Use, modification and distribution are subject to the
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// Boost Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#include <cmath>
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#include <cstdint>
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#include <limits>
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#include <type_traits>
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#include <boost/math/ccmath/abs.hpp>
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#include <boost/math/ccmath/fabs.hpp>
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#include <boost/math/tools/config.hpp>
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#ifdef BOOST_HAS_FLOAT128
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#include <boost/multiprecision/float128.hpp>
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#endif
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template <typename T>
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void test()
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{
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static_assert(boost::math::ccmath::abs(T(3)) == 3);
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static_assert(boost::math::ccmath::abs(T(-3)) == 3);
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static_assert(boost::math::ccmath::abs(T(-0)) == 0);
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static_assert(boost::math::ccmath::abs(-std::numeric_limits<T>::infinity()) == std::numeric_limits<T>::infinity());
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if constexpr (std::numeric_limits<T>::has_quiet_NaN)
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{
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static_assert(boost::math::ccmath::abs(-std::numeric_limits<T>::quiet_NaN()) != std::numeric_limits<T>::quiet_NaN());
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}
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}
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template <typename T>
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void gpp_test()
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{
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static_assert(std::sin(T(0)) == 0);
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constexpr T sin_1 = boost::math::ccmath::abs(std::sin(T(-1)));
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static_assert(sin_1 > 0);
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static_assert(sin_1 == T(0.8414709848078965066525l));
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}
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template <typename T>
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void fabs_test()
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{
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static_assert(boost::math::ccmath::fabs(T(3)) == 3);
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static_assert(boost::math::ccmath::fabs(T(-3)) == 3);
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static_assert(boost::math::ccmath::fabs(T(-0)) == 0);
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static_assert(boost::math::ccmath::fabs(-std::numeric_limits<T>::infinity()) == std::numeric_limits<T>::infinity());
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if constexpr (std::numeric_limits<T>::has_quiet_NaN)
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{
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static_assert(boost::math::ccmath::fabs(-std::numeric_limits<T>::quiet_NaN()) != std::numeric_limits<T>::quiet_NaN());
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}
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}
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// Only test on platforms that provide BOOST_MATH_IS_CONSTANT_EVALUATED
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#ifndef BOOST_MATH_NO_CONSTEXPR_DETECTION
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int main()
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{
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test<float>();
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test<double>();
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#ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
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test<long double>();
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#endif
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#if defined(BOOST_HAS_FLOAT128) && !defined(BOOST_MATH_USING_BUILTIN_CONSTANT_P)
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test<boost::multiprecision::float128>();
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#endif
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test<int>();
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test<long>();
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test<long long>();
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test<std::int32_t>();
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test<std::int64_t>();
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// Types that are convertible to int
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test<short>();
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test<char>();
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// fabs
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fabs_test<float>();
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fabs_test<double>();
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#ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
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fabs_test<long double>();
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#endif
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#if defined(BOOST_HAS_FLOAT128) && !defined(BOOST_MATH_USING_BUILTIN_CONSTANT_P)
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fabs_test<boost::multiprecision::float128>();
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#endif
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// Tests using glibcxx extensions that allow for some constexpr cmath
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#if __GNUC__ >= 10
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gpp_test<float>();
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gpp_test<double>();
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#ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
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gpp_test<long double>();
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#endif
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#endif // glibcxx tests
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return 0;
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}
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#else
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int main()
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{
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return 0;
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}
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#endif
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