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53 lines
1.4 KiB
C++
53 lines
1.4 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 <cfloat>
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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/fpclassify.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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if constexpr (std::numeric_limits<T>::has_quiet_NaN)
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{
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static_assert(boost::math::ccmath::fpclassify(std::numeric_limits<T>::quiet_NaN()) == FP_NAN);
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}
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static_assert(boost::math::ccmath::fpclassify(T(0)) == FP_ZERO);
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static_assert(boost::math::ccmath::fpclassify(std::numeric_limits<T>::infinity()) == FP_INFINITE);
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static_assert(boost::math::ccmath::fpclassify((std::numeric_limits<T>::min)() / T(2)) == FP_SUBNORMAL);
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static_assert(boost::math::ccmath::fpclassify(T(1)) == FP_NORMAL);
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}
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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_MATH_TEST_FLOAT128) && !defined(BOOST_MATH_USING_BUILTIN_CONSTANT_P) && defined(BOOST_MATH_TEST_FLOAT128)
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test<boost::multiprecision::float128>();
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#endif
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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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