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_values::zero  // noexcept after C++17
13 
14 #include <chrono>
15 #include <cassert>
16 
17 #include "test_macros.h"
18 #include "../../rep.h"
19 
main()20 int main()
21 {
22     assert(std::chrono::duration_values<int>::zero() == 0);
23     assert(std::chrono::duration_values<Rep>::zero() == 0);
24 #if TEST_STD_VER >= 11
25     static_assert(std::chrono::duration_values<int>::zero() == 0, "");
26     static_assert(std::chrono::duration_values<Rep>::zero() == 0, "");
27 #endif
28 
29     LIBCPP_ASSERT_NOEXCEPT(std::chrono::duration_values<int>::zero());
30     LIBCPP_ASSERT_NOEXCEPT(std::chrono::duration_values<Rep>::zero());
31 #if TEST_STD_VER > 17
32     ASSERT_NOEXCEPT(std::chrono::duration_values<int>::zero());
33     ASSERT_NOEXCEPT(std::chrono::duration_values<Rep>::zero());
34 #endif
35 }
36