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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 <cfloat>
#include <cstdint>
#include <limits>
#include <boost/math/ccmath/isnan.hpp>
#include <boost/core/lightweight_test.hpp>
#include <boost/math/tools/config.hpp>
#ifdef BOOST_HAS_FLOAT128
#include <boost/multiprecision/float128.hpp>
#endif
template <typename T>
void test()
{
constexpr bool test_val = boost::math::ccmath::isnan(T(0));
static_assert(!test_val, "Not constexpr");
if constexpr (std::numeric_limits<T>::has_quiet_NaN)
{
static_assert(boost::math::ccmath::isnan(std::numeric_limits<T>::quiet_NaN()), "Quiet NAN failed");
}
if constexpr (std::numeric_limits<T>::has_signaling_NaN)
{
static_assert(boost::math::ccmath::isnan(std::numeric_limits<T>::signaling_NaN()), "Signaling NAN failed");
}
static_assert(!boost::math::ccmath::isnan(std::numeric_limits<T>::infinity()), "Infinity failed");
static_assert(!boost::math::ccmath::isnan(T(0)), "Real 0 failed");
}
// 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<unsigned>();
test<long>();
test<std::int32_t>();
test<std::int64_t>();
test<std::uint32_t>();
return boost::report_errors();
}
#else
int main()
{
return 0;
}
#endif
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