1bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant//===----------------------------------------------------------------------===// 2bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 3f5256e16dfc425c1d466f6308d4026d529ce9e0bHoward Hinnant// The LLVM Compiler Infrastructure 4bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 5b64f8b07c104c6cc986570ac8ee0ed16a9f23976Howard Hinnant// This file is dual licensed under the MIT and the University of Illinois Open 6b64f8b07c104c6cc986570ac8ee0ed16a9f23976Howard Hinnant// Source Licenses. See LICENSE.TXT for details. 7bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 8bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant//===----------------------------------------------------------------------===// 9bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 10bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// test numeric_limits 11bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 12bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// round_error() 13bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 14bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <limits> 15bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <cfloat> 16bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <cassert> 17bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 18bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnanttemplate <class T> 19bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantvoid 20bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnanttest(T expected) 21bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 22bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::numeric_limits<T>::round_error() == expected); 23bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::numeric_limits<const T>::round_error() == expected); 24bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::numeric_limits<volatile T>::round_error() == expected); 25bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::numeric_limits<const volatile T>::round_error() == expected); 26bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 27bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 28bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantint main() 29bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 30bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<bool>(false); 31bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<char>(0); 32bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<signed char>(0); 33bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<unsigned char>(0); 34bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<wchar_t>(0); 35bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS 36bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<char16_t>(0); 37bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<char32_t>(0); 38cf6dcc35e14a3d2dafe67cf76a200b2e1a671e7dHoward Hinnant#endif // _LIBCPP_HAS_NO_UNICODE_CHARS 39bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<short>(0); 40bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<unsigned short>(0); 41bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<int>(0); 42bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<unsigned int>(0); 43bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<long>(0); 44bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<unsigned long>(0); 45bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<long long>(0); 46bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<unsigned long long>(0); 478a71d236336705a49257d43ac8d986ba3d5f5060Stephan Tolksdorf#ifndef _LIBCPP_HAS_NO_INT128 488a71d236336705a49257d43ac8d986ba3d5f5060Stephan Tolksdorf test<__int128_t>(0); 498a71d236336705a49257d43ac8d986ba3d5f5060Stephan Tolksdorf test<__uint128_t>(0); 508a71d236336705a49257d43ac8d986ba3d5f5060Stephan Tolksdorf#endif 51bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<float>(0.5); 52bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<double>(0.5); 53bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<long double>(0.5); 54bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 55