| //===----------------------------------------------------------------------===// | 
 | // | 
 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | 
 | // See https://llvm.org/LICENSE.txt for license information. | 
 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | 
 | // | 
 | //===----------------------------------------------------------------------===// | 
 |  | 
 | // <chrono> | 
 |  | 
 | // typedef duration<signed integral type of at least 29 bits, ratio< 60>> minutes; | 
 |  | 
 | #include <chrono> | 
 | #include <limits> | 
 | #include <ratio> | 
 | #include <type_traits> | 
 |  | 
 | #include "test_macros.h" | 
 |  | 
 | int main(int, char**) | 
 | { | 
 |     typedef std::chrono::minutes 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 >= 28, ""); | 
 |     static_assert((std::is_same<Period, std::ratio<60> >::value), ""); | 
 |  | 
 |   return 0; | 
 | } |