index.pass.cpp (1111B)
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 weekday_indexed; 13 14 // constexpr unsigned index() const noexcept; 15 // Returns: index_ 16 17 #include <chrono> 18 #include <type_traits> 19 #include <cassert> 20 21 #include "test_macros.h" 22 23 int main() 24 { 25 using weekday = std::chrono::weekday; 26 using weekday_indexed = std::chrono::weekday_indexed; 27 28 ASSERT_NOEXCEPT( std::declval<const weekday_indexed>().index()); 29 ASSERT_SAME_TYPE(unsigned, decltype(std::declval<const weekday_indexed>().index())); 30 31 static_assert( weekday_indexed{}.index() == 0, ""); 32 33 for (unsigned i = 1; i <= 5; ++i) 34 { 35 weekday_indexed wdi(weekday{2}, i); 36 assert( static_cast<unsigned>(wdi.index()) == i); 37 } 38 }