1//===----------------------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9// <chrono>
10
11// typedef duration<signed integral type of at least 23 bits, ratio<3600>> hours;
12
13#include <chrono>
14#include <limits>
15#include <ratio>
16#include <type_traits>
17
18#include "test_macros.h"
19
20int main(int, char**)
21{
22 typedef std::chrono::hours D;
23 typedef D::rep Rep;
24 typedef D::period Period;
25 static_assert(std::is_signed<Rep>::value, "");
26 static_assert(std::is_integral<Rep>::value, "");
27 static_assert(std::numeric_limits<Rep>::digits >= 22, "");
28 static_assert((std::is_same<Period, std::ratio<3600> >::value), "");
29
30 return 0;
31}
32

source code of libcxx/test/std/time/hours.pass.cpp