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