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; 13 14 // constexpr bool ok() const noexcept; 15 // Returns: m_.ok() && wdi_.ok(). 16 17 #include <chrono> 18 #include <type_traits> 19 #include <cassert> 20 21 #include "test_macros.h" 22 23 int main() 24 { 25 using month_weekday = std::chrono::month_weekday; 26 using month = std::chrono::month; 27 using weekday = std::chrono::weekday; 28 using weekday_indexed = std::chrono::weekday_indexed; 29 30 constexpr weekday Sunday = std::chrono::Sunday; 31 32 ASSERT_NOEXCEPT( std::declval<const month_weekday>().ok()); 33 ASSERT_SAME_TYPE(bool, decltype(std::declval<const month_weekday>().ok())); 34 35 static_assert(!month_weekday{month{}, weekday_indexed{}}.ok(), ""); 36 static_assert( month_weekday{std::chrono::May, weekday_indexed{Sunday, 2}}.ok(), ""); 37 38 assert(!(month_weekday(std::chrono::April, weekday_indexed{Sunday, 0}).ok())); 39 assert( (month_weekday{std::chrono::March, weekday_indexed{Sunday, 1}}.ok())); 40 41 for (unsigned i = 1; i <= 12; ++i) 42 for (unsigned j = 0; j <= 6; ++j) 43 { 44 month_weekday mwd{month{i}, weekday_indexed{Sunday, j}}; 45 assert(mwd.ok() == (j >= 1 && j <= 5)); 46 } 47 48 // If the month is not ok, all the weekday_indexed are bad 49 for (unsigned i = 1; i <= 10; ++i) 50 assert(!(month_weekday{month{13}, weekday_indexed{Sunday, i}}.ok())); 51 } 52
