1// boost/chrono/round.hpp ------------------------------------------------------------//
2
3// (C) Copyright Howard Hinnant
4// Copyright 2011 Vicente J. Botet Escriba
5
6// Distributed under the Boost Software License, Version 1.0. (See accompanying
7// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
8
9// See http://www.boost.org/libs/chrono for documentation.
10
11#ifndef BOOST_CHRONO_FLOOR_HPP
12#define BOOST_CHRONO_FLOOR_HPP
13
14#include <boost/chrono/duration.hpp>
15
16namespace boost
17{
18 namespace chrono
19 {
20
21 /**
22 * rounds down
23 */
24 template <class To, class Rep, class Period>
25 To floor(const duration<Rep, Period>& d)
26 {
27 To t = duration_cast<To>(d);
28 if (t>d) --t;
29 return t;
30 }
31
32
33 } // namespace chrono
34} // namespace boost
35
36#endif
37

source code of boost/boost/chrono/floor.hpp