1 //===----------------------------------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // UNSUPPORTED: c++03, c++11, c++14, c++17 9 10 // <chrono> 11 // class weekday_indexed; 12 13 // constexpr unsigned index() const noexcept; 14 // Returns: index_ 15 16 #include <chrono> 17 #include <type_traits> 18 #include <cassert> 19 20 #include "test_macros.h" 21 main(int,char **)22int main(int, char**) 23 { 24 using weekday = std::chrono::weekday; 25 using weekday_indexed = std::chrono::weekday_indexed; 26 27 ASSERT_NOEXCEPT( std::declval<const weekday_indexed>().index()); 28 ASSERT_SAME_TYPE(unsigned, decltype(std::declval<const weekday_indexed>().index())); 29 30 static_assert( weekday_indexed{}.index() == 0, ""); 31 32 for (unsigned i = 1; i <= 5; ++i) 33 { 34 weekday_indexed wdi(weekday{2}, i); 35 assert( static_cast<unsigned>(wdi.index()) == i); 36 } 37 38 return 0; 39 } 40