Louis Dionne 5726e55981 [libc++] Modularize <chrono>
I didn't split the calendar bits more than this because there was little
benefit to doing it, and I know our calendar support is incomplete.
Whoever picks up the missing calendar bits can organize these headers
at their leisure.

Differential Revision: https://reviews.llvm.org/D116965
2022-01-14 09:55:29 -05:00

32 lines
936 B
C++

//===----------------------------------------------------------------------===//
//
// 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 23 bits, ratio<3600>> hours;
#include <chrono>
#include <limits>
#include <ratio>
#include <type_traits>
#include "test_macros.h"
int main(int, char**)
{
typedef std::chrono::hours 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<Period, std::ratio<3600> >::value), "");
return 0;
}