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// constexpr duration& operator+=(const duration& d); // constexpr in C++17
14
15#include <chrono>
16#include <cassert>
17
18#include "test_macros.h"
19
20#if TEST_STD_VER > 14
21constexpr bool test_constexpr()
22{
23 std::chrono::seconds s(3);
24 s += std::chrono::seconds(2);
25 if (s.count() != 5) return false;
26 s += std::chrono::minutes(2);
27 return s.count() == 125;
28}
29#endif
30
31int main(int, char**)
32{
33 {
34 std::chrono::seconds s(3);
35 s += std::chrono::seconds(2);
36 assert(s.count() == 5);
37 s += std::chrono::minutes(2);
38 assert(s.count() == 125);
39 }
40
41#if TEST_STD_VER > 14
42 static_assert(test_constexpr(), "");
43#endif
44
45 return 0;
46}
47

source code of libcxx/test/std/time/time.duration/time.duration.arithmetic/op_+=.pass.cpp