f5256e16df
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103516 91177308-0d34-0410-b5e6-96231b3b80d8
70 lines
1.6 KiB
C++
70 lines
1.6 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// test numeric_limits
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// signaling_NaN()
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#include <limits>
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#include <cmath>
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#include <type_traits>
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#include <cassert>
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template <class T>
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void
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test_imp(std::true_type)
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{
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assert(std::isnan(std::numeric_limits<T>::signaling_NaN()));
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assert(std::isnan(std::numeric_limits<const T>::signaling_NaN()));
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assert(std::isnan(std::numeric_limits<volatile T>::signaling_NaN()));
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assert(std::isnan(std::numeric_limits<const volatile T>::signaling_NaN()));
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}
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template <class T>
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void
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test_imp(std::false_type)
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{
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assert(std::numeric_limits<T>::signaling_NaN() == T());
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assert(std::numeric_limits<const T>::signaling_NaN() == T());
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assert(std::numeric_limits<volatile T>::signaling_NaN() == T());
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assert(std::numeric_limits<const volatile T>::signaling_NaN() == T());
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}
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template <class T>
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inline
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void
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test()
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{
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test_imp<T>(std::is_floating_point<T>());
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}
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int main()
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{
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test<bool>();
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test<char>();
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test<signed char>();
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test<unsigned char>();
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test<wchar_t>();
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#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
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test<char16_t>();
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test<char32_t>();
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#endif
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test<short>();
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test<unsigned short>();
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test<int>();
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test<unsigned int>();
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test<long>();
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test<unsigned long>();
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test<long long>();
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test<unsigned long long>();
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test<float>();
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test<double>();
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test<long double>();
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}
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