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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// test numeric_limits
// quiet_NaN()
#include <limits>
#include <cmath>
#include <type_traits>
#include <cassert>
template <class T>
void
test_imp(std::true_type)
{
assert(std::isnan(std::numeric_limits<T>::quiet_NaN()));
assert(std::isnan(std::numeric_limits<const T>::quiet_NaN()));
assert(std::isnan(std::numeric_limits<volatile T>::quiet_NaN()));
assert(std::isnan(std::numeric_limits<const volatile T>::quiet_NaN()));
}
template <class T>
void
test_imp(std::false_type)
{
assert(std::numeric_limits<T>::quiet_NaN() == T());
assert(std::numeric_limits<const T>::quiet_NaN() == T());
assert(std::numeric_limits<volatile T>::quiet_NaN() == T());
assert(std::numeric_limits<const volatile T>::quiet_NaN() == T());
}
template <class T>
inline
void
test()
{
test_imp<T>(std::is_floating_point<T>());
}
int main()
{
test<bool>();
test<char>();
test<signed char>();
test<unsigned char>();
test<wchar_t>();
#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
test<char16_t>();
test<char32_t>();
#endif // _LIBCPP_HAS_NO_UNICODE_CHARS
test<short>();
test<unsigned short>();
test<int>();
test<unsigned int>();
test<long>();
test<unsigned long>();
test<long long>();
test<unsigned long long>();
#ifndef _LIBCPP_HAS_NO_INT128
test<__int128_t>();
test<__uint128_t>();
#endif
test<float>();
test<double>();
test<long double>();
}
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