mirror of
https://github.com/boostorg/math.git
synced 2026-01-26 06:42:12 +00:00
36 lines
1.0 KiB
C++
36 lines
1.0 KiB
C++
// (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 <limits>
|
|
#include <boost/math/ccmath/isnan.hpp>
|
|
#include <boost/core/lightweight_test.hpp>
|
|
|
|
template <typename T>
|
|
void test()
|
|
{
|
|
constexpr bool test_val = boost::math::ccmath::isnan(T(0));
|
|
static_assert(!test_val, "Not constexpr");
|
|
|
|
BOOST_TEST(!test_val);
|
|
BOOST_TEST(boost::math::ccmath::isnan(std::numeric_limits<T>::quiet_NaN()));
|
|
BOOST_TEST(boost::math::ccmath::isnan(std::numeric_limits<T>::signaling_NaN()));
|
|
BOOST_TEST(!boost::math::ccmath::isnan(std::numeric_limits<T>::infinity()));
|
|
BOOST_TEST(boost::math::ccmath::isnan(T(0)/T(0)));
|
|
}
|
|
|
|
int main()
|
|
{
|
|
test<float>();
|
|
test<double>();
|
|
|
|
#ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
|
|
test<long double>();
|
|
#endif
|
|
|
|
return boost::report_errors();
|
|
}
|