1*7738db2cSMark de Wever //===----------------------------------------------------------------------===//
2*7738db2cSMark de Wever //
3*7738db2cSMark de Wever // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4*7738db2cSMark de Wever // See https://llvm.org/LICENSE.txt for license information.
5*7738db2cSMark de Wever // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6*7738db2cSMark de Wever //
7*7738db2cSMark de Wever //===----------------------------------------------------------------------===//
8*7738db2cSMark de Wever // UNSUPPORTED: c++03, c++11, c++14, c++17
9*7738db2cSMark de Wever
10*7738db2cSMark de Wever // <chrono>
11*7738db2cSMark de Wever
12*7738db2cSMark de Wever // using weeks = duration<signed integer type of at least 22 bits, ratio_multiply<ratio<7>, days::period>>;
13*7738db2cSMark de Wever
14*7738db2cSMark de Wever #include <chrono>
15*7738db2cSMark de Wever #include <limits>
16*7738db2cSMark de Wever #include <ratio>
17*7738db2cSMark de Wever #include <type_traits>
18*7738db2cSMark de Wever
19*7738db2cSMark de Wever #include "test_macros.h"
20*7738db2cSMark de Wever
main(int,char **)21*7738db2cSMark de Wever int main(int, char**)
22*7738db2cSMark de Wever {
23*7738db2cSMark de Wever typedef std::chrono::weeks D;
24*7738db2cSMark de Wever typedef D::rep Rep;
25*7738db2cSMark de Wever typedef D::period Period;
26*7738db2cSMark de Wever static_assert(std::is_signed<Rep>::value, "");
27*7738db2cSMark de Wever static_assert(std::is_integral<Rep>::value, "");
28*7738db2cSMark de Wever static_assert(std::numeric_limits<Rep>::digits >= 22, "");
29*7738db2cSMark de Wever static_assert(std::is_same_v<Period, std::ratio_multiply<std::ratio<7>, std::chrono::days::period>>, "");
30*7738db2cSMark de Wever
31*7738db2cSMark de Wever return 0;
32*7738db2cSMark de Wever }
33