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// Adaptation to Boost of the libcxx
10// Copyright 2010 Vicente J. Botet Escriba
11// Distributed under the Boost Software License, Version 1.0.
12// See http://www.boost.org/LICENSE_1_0.txt
13
14#define BOOST_CHRONO_EXTENSIONS
15#include <boost/chrono/chrono.hpp>
16#include <boost/detail/lightweight_test.hpp>
17#ifdef BOOST_NO_CXX11_CONSTEXPR
18#define BOOST_CONSTEXPR_ASSERT(C) BOOST_TEST(C)
19#else
20#include <boost/static_assert.hpp>
21#define BOOST_CONSTEXPR_ASSERT(C) BOOST_STATIC_ASSERT(C)
22#endif
23
24int main()
25{
26 {
27 typedef boost::chrono::system_clock Clock;
28 typedef boost::chrono::milliseconds Duration;
29 boost::chrono::time_point<Clock, Duration> t(Duration(3));
30 t += 2;
31 BOOST_TEST(t.time_since_epoch() == Duration(5));
32 }
33 {
34 typedef boost::chrono::system_clock Clock;
35 typedef boost::chrono::milliseconds Duration;
36 boost::chrono::time_point<Clock, Duration> t(Duration(3));
37 t++;
38 BOOST_TEST(t.time_since_epoch() == Duration(4));
39 }
40 {
41 typedef boost::chrono::system_clock Clock;
42 typedef boost::chrono::milliseconds Duration;
43 boost::chrono::time_point<Clock, Duration> t(Duration(3));
44 ++t;
45 BOOST_TEST(t.time_since_epoch() == Duration(4));
46 }
47 {
48 typedef boost::chrono::system_clock Clock;
49 typedef boost::chrono::milliseconds Duration;
50 boost::chrono::time_point<Clock, Duration> t(Duration(3));
51 t -= 2;
52 BOOST_TEST(t.time_since_epoch() == Duration(1));
53 }
54 {
55 typedef boost::chrono::system_clock Clock;
56 typedef boost::chrono::milliseconds Duration;
57 boost::chrono::time_point<Clock, Duration> t(Duration(3));
58 t--;
59 BOOST_TEST(t.time_since_epoch() == Duration(2));
60 }
61 {
62 typedef boost::chrono::system_clock Clock;
63 typedef boost::chrono::milliseconds Duration;
64 boost::chrono::time_point<Clock, Duration> t(Duration(3));
65 --t;
66 BOOST_TEST(t.time_since_epoch() == Duration(2));
67 }
68
69 return boost::report_errors();
70}
71

source code of boost/libs/chrono/test/time_point/arithmetic_ext_pass.cpp