op_++.pass.cpp revision b64f8b07c104c6cc986570ac8ee0ed16a9f23976 
1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is dual licensed under the MIT and the University of Illinois Open
6// Source Licenses. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10// <chrono>
11
12// duration
13
14// duration& operator++();
15
16#include <chrono>
17#include <cassert>
18
19int main()
20{
21    std::chrono::hours h(3);
22    std::chrono::hours& href = ++h;
23    assert(&href == &h);
24    assert(h.count() == 4);
25}
26