1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // test numeric_limits 11 12 // round_style 13 14 #include <limits> 15 16 template <class T, std::float_round_style expected> 17 void 18 test() 19 { 20 static_assert(std::numeric_limits<T>::round_style == expected, "round_style test 1"); 21 static_assert(std::numeric_limits<const T>::round_style == expected, "round_style test 2"); 22 static_assert(std::numeric_limits<volatile T>::round_style == expected, "round_style test 3"); 23 static_assert(std::numeric_limits<const volatile T>::round_style == expected, "round_style test 4"); 24 } 25 26 int main() 27 { 28 test<bool, std::round_toward_zero>(); 29 test<char, std::round_toward_zero>(); 30 test<signed char, std::round_toward_zero>(); 31 test<unsigned char, std::round_toward_zero>(); 32 test<wchar_t, std::round_toward_zero>(); 33 #ifndef _LIBCPP_HAS_NO_UNICODE_CHARS 34 test<char16_t, std::round_toward_zero>(); 35 test<char32_t, std::round_toward_zero>(); 36 #endif // _LIBCPP_HAS_NO_UNICODE_CHARS 37 test<short, std::round_toward_zero>(); 38 test<unsigned short, std::round_toward_zero>(); 39 test<int, std::round_toward_zero>(); 40 test<unsigned int, std::round_toward_zero>(); 41 test<long, std::round_toward_zero>(); 42 test<unsigned long, std::round_toward_zero>(); 43 test<long long, std::round_toward_zero>(); 44 test<unsigned long long, std::round_toward_zero>(); 45 #ifndef _LIBCPP_HAS_NO_INT128 46 test<__int128_t, std::round_toward_zero>(); 47 test<__uint128_t, std::round_toward_zero>(); 48 #endif 49 test<float, std::round_to_nearest>(); 50 test<double, std::round_to_nearest>(); 51 test<long double, std::round_to_nearest>(); 52 } 53
