| //===----------------------------------------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // <chrono> |
| |
| // duration |
| |
| // constexpr duration& operator+=(const duration& d); // constexpr in C++17 |
| |
| #include <chrono> |
| #include <cassert> |
| |
| #include "test_macros.h" |
| |
| #if TEST_STD_VER > 14 |
| constexpr bool test_constexpr() |
| { |
| std::chrono::seconds s(3); |
| s += std::chrono::seconds(2); |
| if (s.count() != 5) return false; |
| s += std::chrono::minutes(2); |
| return s.count() == 125; |
| } |
| #endif |
| |
| int main() |
| { |
| { |
| std::chrono::seconds s(3); |
| s += std::chrono::seconds(2); |
| assert(s.count() == 5); |
| s += std::chrono::minutes(2); |
| assert(s.count() == 125); |
| } |
| |
| #if TEST_STD_VER > 14 |
| static_assert(test_constexpr(), ""); |
| #endif |
| } |