1// -*- C++ -*-
2
3// Copyright (C) 2005-2015 Free Software Foundation, Inc.
4//
5// This file is part of the GNU ISO C++ Library.  This library is free
6// software; you can redistribute it and/or modify it under the terms
7// of the GNU General Public License as published by the Free Software
8// Foundation; either version 3, or (at your option) any later
9// version.
10
11// This library is distributed in the hope that it will be useful, but
12// WITHOUT ANY WARRANTY; without even the implied warranty of
13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14// General Public License for more details.
15
16// You should have received a copy of the GNU General Public License
17// along with this library; see the file COPYING3.  If not see
18// <http://www.gnu.org/licenses/>.
19
20
21// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
22
23// Permission to use, copy, modify, sell, and distribute this software
24// is hereby granted without fee, provided that the above copyright
25// notice appears in all copies, and that both that copyright notice
26// and this permission notice appear in supporting documentation. None
27// of the above authors, nor IBM Haifa Research Laboratories, make any
28// representation about the suitability of this software for any
29// purpose. It is provided "as is" without express or implied
30// warranty.
31
32/**
33 * @file elapsed_timer.cpp
34 * Contains utilities for tests.
35 */
36
37#include <util/performance/time/elapsed_timer.hpp>
38
39namespace __gnu_pbds
40{
41
42  namespace test
43  {
44
45    elapsed_timer::
46    elapsed_timer()
47    {
48      reset();
49    }
50
51    void
52    elapsed_timer::
53    reset()
54    {
55      m_start = ::clock();
56    }
57
58    elapsed_timer::
59    operator double() const
60    {
61      const clock_t now = ::clock();
62
63      return (((double)now - m_start) / CLOCKS_PER_SEC);
64    }
65
66  } // namespace test
67
68} // namespace __gnu_pbds
69