1 // -*- C++ -*- 2 3 // Copyright (C) 2005-2020 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 39 namespace __gnu_pbds 40 { 41 42 namespace test 43 { 44 45 elapsed_timer:: elapsed_timer()46 elapsed_timer() 47 { 48 reset(); 49 } 50 51 void 52 elapsed_timer:: reset()53 reset() 54 { 55 m_start = ::clock(); 56 } 57 58 elapsed_timer:: operator double() const59 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