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// duration
12
13// Period::num shall be positive, diagnostic required.
14
15#include <chrono>
16
17int main(int, char**)
18{
19 typedef std::chrono::duration<int, std::ratio<5, -1> > D;
20 D d;
21
22 return 0;
23}
24

source code of libcxx/test/std/time/time.duration/positive_num.compile.fail.cpp