mirror of
https://github.com/boostorg/math.git
synced 2026-01-19 16:32:10 +00:00
66 lines
1.7 KiB
C++
66 lines
1.7 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 <cstdint>
|
|
#include <limits>
|
|
#include <type_traits>
|
|
#include <boost/math/ccmath/isnormal.hpp>
|
|
|
|
#ifdef BOOST_HAS_FLOAT128
|
|
#include <boost/multiprecision/float128.hpp>
|
|
#endif
|
|
|
|
// Determines if the given argument is normal, i.e. is neither zero, subnormal, infinite nor NaN.
|
|
template <typename T>
|
|
void test()
|
|
{
|
|
if constexpr (std::numeric_limits<T>::has_quiet_NaN)
|
|
{
|
|
static_assert(!boost::math::ccmath::isnormal(std::numeric_limits<T>::quiet_NaN()), "Wrong response to quiet NAN");
|
|
}
|
|
|
|
static_assert(!boost::math::ccmath::isnormal(T(0)), "Wrong response to 0");
|
|
|
|
if constexpr (!std::is_integral_v<T>)
|
|
{
|
|
static_assert(!boost::math::ccmath::isnormal((std::numeric_limits<T>::min)() / 2), "Wrong response to subnormal");
|
|
static_assert(!boost::math::ccmath::isnormal(std::numeric_limits<T>::infinity()), "Wrong response to infinity");
|
|
}
|
|
|
|
static_assert(boost::math::ccmath::isnormal(T(1)), "Wrong response to normal number");
|
|
}
|
|
|
|
#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 0;
|
|
}
|
|
#else
|
|
int main()
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|