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 10 // <chrono> 11 12 // duration 13 14 // static constexpr duration zero(); 15 16 #include <chrono> 17 #include <cassert> 18 19 #include "test_macros.h" 20 #include "../../rep.h" 21 22 template <class D> 23 void test() 24 { 25 { 26 typedef typename D::rep Rep; 27 Rep zero_rep = std::chrono::duration_values<Rep>::zero(); 28 assert(D::zero().count() == zero_rep); 29 } 30 #if TEST_STD_VER >= 11 31 { 32 typedef typename D::rep Rep; 33 constexpr Rep zero_rep = std::chrono::duration_values<Rep>::zero(); 34 static_assert(D::zero().count() == zero_rep, ""); 35 } 36 #endif 37 } 38 39 int main() 40 { 41 test<std::chrono::duration<int> >(); 42 test<std::chrono::duration<Rep> >(); 43 } 44
