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 month_weekday_last; 13 14 // constexpr chrono::weekday_last weekday_last() const noexcept; 15 // Returns: wdl_ 16 17 #include <chrono> 18 #include <type_traits> 19 #include <cassert> 20 21 #include "test_macros.h" 22 main()23int main() 24 { 25 using month = std::chrono::month; 26 using weekday = std::chrono::weekday; 27 using weekday_last = std::chrono::weekday_last; 28 using month_weekday_last = std::chrono::month_weekday_last; 29 30 constexpr month January = std::chrono::January; 31 constexpr weekday Tuesday = std::chrono::Tuesday; 32 constexpr weekday_last lastTuesday = weekday_last{Tuesday}; 33 34 ASSERT_NOEXCEPT( std::declval<const month_weekday_last>().weekday_last()); 35 ASSERT_SAME_TYPE(weekday_last, decltype(std::declval<const month_weekday_last>().weekday_last())); 36 37 static_assert( month_weekday_last{month{}, lastTuesday}.weekday_last() == lastTuesday, ""); 38 39 for (unsigned i = 1; i <= 50; ++i) 40 { 41 month_weekday_last mdl(January, weekday_last{weekday{i}}); 42 assert( static_cast<unsigned>(mdl.weekday_last().weekday()) == i); 43 } 44 } 45