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++(int); // constexpr in C++17 |
14 | |
15 | #include <chrono> |
16 | #include <cassert> |
17 | |
18 | #include "test_macros.h" |
19 | |
20 | #if TEST_STD_VER > 14 |
21 | constexpr bool test_constexpr() |
22 | { |
23 | std::chrono::hours h1(3); |
24 | std::chrono::hours h2 = h1++; |
25 | return h1.count() == 4 && h2.count() == 3; |
26 | } |
27 | #endif |
28 | |
29 | int main(int, char**) |
30 | { |
31 | { |
32 | std::chrono::hours h1(3); |
33 | std::chrono::hours h2 = h1++; |
34 | assert(h1.count() == 4); |
35 | assert(h2.count() == 3); |
36 | } |
37 | |
38 | #if TEST_STD_VER > 14 |
39 | static_assert(test_constexpr(), "" ); |
40 | #endif |
41 | |
42 | return 0; |
43 | } |
44 | |