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 "../../rep.h" 20 21 template <class D> 22 void test() 23 { 24 { 25 typedef typename D::rep Rep; 26 Rep zero_rep = std::chrono::duration_values<Rep>::zero(); 27 assert(D::zero().count() == zero_rep); 28 } 29 #ifndef _LIBCPP_HAS_NO_CONSTEXPR 30 { 31 typedef typename D::rep Rep; 32 constexpr Rep zero_rep = std::chrono::duration_values<Rep>::zero(); 33 static_assert(D::zero().count() == zero_rep, ""); 34 } 35 #endif 36 } 37 38 int main() 39 { 40 test<std::chrono::duration<int> >(); 41 test<std::chrono::duration<Rep> >(); 42 } 43
