da502b99be
git-svn-id: svn://svn.code.sf.net/p/loki-lib/code/trunk@761 7ec92016-0320-0410-acc4-a06ded1c099a
75 lines
1.6 KiB
C++
75 lines
1.6 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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// The Loki Library
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// Copyright (c) 2005 Peter Kümmel
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// Permission to use, copy, modify, distribute and sell this software for any
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// purpose is hereby granted without fee, provided that the above copyright
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// notice appear in all copies and that both that copyright notice and this
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// permission notice appear in supporting documentation.
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// The authors make no representations about the
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// suitability of this software for any purpose. It is provided "as is"
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// without express or implied warranty.
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////////////////////////////////////////////////////////////////////////////////
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#ifndef LOKI_TEST_TIMER_H
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#define LOKI_TEST_TIMER_H
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// $Id$
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#include <ctime>
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#include <iostream>
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#include <stdlib.h>
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#include <cmath>
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class Timer
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{
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public:
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Timer()
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{
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t100 = 0;
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};
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void start()
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{
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t0 = clock();
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}
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void stop()
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{
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t1 = clock();
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}
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int t()
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{
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return t1-t0;
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}
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double sec(int t)
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{
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return floor(100.0*double(t)/1000.0 )/100.0;
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}
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int rel(int t)
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{
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return ( t100==0 ? 100 : static_cast<int>(floor(100.0*t/t100+0.5)) );
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}
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double speedup(int t)
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{
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double tup=t;
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return (tup!=0 ? floor(100.0*(t100!=0?t100:tup)/tup+0.5)/100 : 1);
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}
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double t100;
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void print(int t, const char* s)
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{
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std::cout << s << "\tseconds: " << sec(t) << "\trelative time: " << rel(t) << "%\tspeed-up factor: " << speedup(t) << "" << std::endl;
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}
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private:
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int t0;
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int t1;
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};
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#endif
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