| //===----------------------------------------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // <chrono> |
| |
| // typedef duration<signed integral type of at least 55 bits, micro> microseconds; |
| |
| #include <chrono> |
| #include <type_traits> |
| #include <limits> |
| |
| int main() |
| { |
| typedef std::chrono::microseconds D; |
| typedef D::rep Rep; |
| typedef D::period Period; |
| static_assert(std::is_signed<Rep>::value, ""); |
| static_assert(std::is_integral<Rep>::value, ""); |
| static_assert(std::numeric_limits<Rep>::digits >= 54, ""); |
| static_assert((std::is_same<Period, std::micro>::value), ""); |
| } |