text: //===----------------------------------------------------------------------===//
  //
  // 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
  //
  //===----------------------------------------------------------------------===//
  // UNSUPPORTED: c++98, c++03, c++11, c++14, c++17
  
  // <chrono>
  
  // using weeks = duration<signed integer type of at least 22 bits, ratio_multiply<ratio<7>, days::period>>;
  
  #include <chrono>
  #include <type_traits>
  #include <limits>
  
  #include "test_macros.h"
  
  int main(int, char**)
  {
      typedef std::chrono::weeks 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 >= 22, "");
      static_assert(std::is_same_v<Period, std::ratio_multiply<std::ratio<7>, std::chrono::days::period>>, "");
  
    return 0;
  }
  