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// template <class Rep2>
14// explicit duration(const Rep2& r);
15
16#include <chrono>
17#include <cassert>
18#include <ratio>
19
20#include "test_macros.h"
21#include "../../rep.h"
22
23#if TEST_STD_VER >= 11
24struct NotValueConvertible {
25 operator int() const&& = delete;
26 constexpr operator int() const& { return 1; }
27};
28#endif
29
30template <class D, class R>
31TEST_CONSTEXPR_CXX14 void check(R r) {
32 D d(r);
33 assert(d.count() == r);
34}
35
36TEST_CONSTEXPR_CXX14 bool test() {
37 check<std::chrono::duration<int> >(5);
38 check<std::chrono::duration<int, std::ratio<3, 2> > >(5);
39 check<std::chrono::duration<Rep, std::ratio<3, 2> > >(Rep(3));
40 check<std::chrono::duration<double, std::ratio<2, 3> > >(5.5);
41
42 // test for [time.duration.cons]/1
43#if TEST_STD_VER >= 11
44 check<std::chrono::duration<int> >(NotValueConvertible());
45#endif
46
47 return true;
48}
49
50int main(int, char**) {
51 test();
52#if TEST_STD_VER > 11
53 static_assert(test(), "");
54#endif
55
56 // Basic test for constexpr-friendliness in C++11
57#if TEST_STD_VER >= 11
58 {
59 constexpr std::chrono::duration<int> d(5);
60 static_assert(d.count() == 5, "");
61 }
62#endif
63 return 0;
64}
65

source code of libcxx/test/std/time/time.duration/time.duration.cons/rep.pass.cpp