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 11 // <chrono> 12 // class year_month_weekday; 13 14 // constexpr unsigned index() const noexcept; 15 // Returns: wdi_.index() 16 17 #include <chrono> 18 #include <type_traits> 19 #include <cassert> 20 21 #include "test_macros.h" 22 main()23int main() 24 { 25 using year = std::chrono::year; 26 using month = std::chrono::month; 27 using weekday = std::chrono::weekday; 28 using weekday_indexed = std::chrono::weekday_indexed; 29 using year_month_weekday = std::chrono::year_month_weekday; 30 31 ASSERT_NOEXCEPT( std::declval<const year_month_weekday>().index()); 32 ASSERT_SAME_TYPE(unsigned, decltype(std::declval<const year_month_weekday>().index())); 33 34 static_assert( year_month_weekday{}.index() == 0, ""); 35 36 for (unsigned i = 1; i <= 50; ++i) 37 { 38 year_month_weekday ymwd0(year{1234}, month{2}, weekday_indexed{weekday{2}, i}); 39 assert(ymwd0.index() == i); 40 } 41 } 42