op_-.pass.cpp revision c52f43e72dfcea03037729649da84c23b3beb04a 
1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10// <chrono>
11
12// duration
13
14// duration operator-() const;
15
16#include <chrono>
17#include <cassert>
18
19int main()
20{
21    const std::chrono::minutes m(3);
22    std::chrono::minutes m2 = -m;
23    assert(m2.count() == -m.count());
24}
25