1//===----------------------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9// <chrono>
10
11// duration
12
13// static constexpr duration max(); // noexcept after C++17
14
15#include <chrono>
16#include <limits>
17#include <cassert>
18
19#include "test_macros.h"
20#include "../../rep.h"
21
22template <class D>
23void test()
24{
25 LIBCPP_ASSERT_NOEXCEPT(std::chrono::duration_values<typename D::rep>::max());
26#if TEST_STD_VER > 17
27 ASSERT_NOEXCEPT( std::chrono::duration_values<typename D::rep>::max());
28#endif
29 {
30 typedef typename D::rep DRep;
31 DRep max_rep = std::chrono::duration_values<DRep>::max();
32 assert(D::max().count() == max_rep);
33 }
34#if TEST_STD_VER >= 11
35 {
36 typedef typename D::rep DRep;
37 constexpr DRep max_rep = std::chrono::duration_values<DRep>::max();
38 static_assert(D::max().count() == max_rep, "");
39 }
40#endif
41}
42
43int main(int, char**)
44{
45 test<std::chrono::duration<int> >();
46 test<std::chrono::duration<Rep> >();
47
48 return 0;
49}
50

source code of libcxx/test/std/time/time.duration/time.duration.special/max.pass.cpp