| //===----------------------------------------------------------------------===// |
| // |
| // 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. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // UNSUPPORTED: c++98, c++03, c++11, c++14 |
| // <chrono> |
| |
| // floor |
| |
| // template <class ToDuration, class Rep, class Period> |
| // constexpr |
| // ToDuration |
| // floor(const duration<Rep, Period>& d); |
| |
| #include <chrono> |
| #include <type_traits> |
| #include <cassert> |
| |
| template <class ToDuration, class FromDuration> |
| void |
| test(const FromDuration& f, const ToDuration& d) |
| { |
| { |
| typedef decltype(std::chrono::floor<ToDuration>(f)) R; |
| static_assert((std::is_same<R, ToDuration>::value), ""); |
| assert(std::chrono::floor<ToDuration>(f) == d); |
| } |
| } |
| |
| int main() |
| { |
| // 7290000ms is 2 hours, 1 minute, and 30 seconds |
| test(std::chrono::milliseconds( 7290000), std::chrono::hours( 2)); |
| test(std::chrono::milliseconds(-7290000), std::chrono::hours(-3)); |
| test(std::chrono::milliseconds( 7290000), std::chrono::minutes( 121)); |
| test(std::chrono::milliseconds(-7290000), std::chrono::minutes(-122)); |
| |
| { |
| // 9000000ms is 2 hours and 30 minutes |
| constexpr std::chrono::hours h1 = std::chrono::floor<std::chrono::hours>(std::chrono::milliseconds(9000000)); |
| static_assert(h1.count() == 2, ""); |
| constexpr std::chrono::hours h2 = std::chrono::floor<std::chrono::hours>(std::chrono::milliseconds(-9000000)); |
| static_assert(h2.count() == -3, ""); |
| } |
| } |