literals.pass.cpp (1112B)
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 // UNSUPPORTED: c++98, c++03, c++11, c++14, c++17 10 // UNSUPPORTED: clang-5, clang-6, clang-7 11 // UNSUPPORTED: apple-clang-6, apple-clang-7, apple-clang-8, apple-clang-9, apple-clang-10 12 13 // <chrono> 14 // class year; 15 16 // constexpr year operator""y(unsigned long long y) noexcept; 17 18 #include <chrono> 19 #include <type_traits> 20 #include <cassert> 21 22 #include "test_macros.h" 23 24 int main() 25 { 26 { 27 using namespace std::chrono; 28 ASSERT_NOEXCEPT(4y); 29 30 static_assert( 2017y == year(2017), ""); 31 year y1 = 2018y; 32 assert (y1 == year(2018)); 33 } 34 35 { 36 using namespace std::literals; 37 ASSERT_NOEXCEPT(4d); 38 39 static_assert( 2017y == std::chrono::year(2017), ""); 40 41 std::chrono::year y1 = 2020y; 42 assert (y1 == std::chrono::year(2020)); 43 } 44 }