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/*! ========================================================================
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** Extended Template and Library Test Suite
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** Clock Test
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** $Id$
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**
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** Copyright (c) 2002 Robert B. Quattlebaum Jr.
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**
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** This package is free software; you can redistribute it and/or
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** modify it under the terms of the GNU General Public License as
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** published by the Free Software Foundation; either version 2 of
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** the License, or (at your option) any later version.
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**
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** This package is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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** General Public License for more details.
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**
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** === N O T E S ===========================================================
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**
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** ========================================================================= */
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/* === H E A D E R S ======================================================= */
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#include <etl clock=""></etl>
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#include <stdio.h></stdio.h>
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/* === M A C R O S ========================================================= */
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using namespace etl;
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/* === C L A S S E S ======================================================= */
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/* === P R O C E D U R E S ================================================= */
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int basic_test(void)
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{
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int ret=0;
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fprintf(stderr,"default etl::clock precision: %0.8f\n",etl::clock::precision());
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fprintf(stderr,"realtime etl::clock precision: %0.8f\n",etl::clock_realtime::precision());
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fprintf(stderr,"proctime etl::clock precision: %0.8f\n",etl::clock_proctime::precision());
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etl::clock_realtime timer;
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etl::clock::value_type amount,total;
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for(amount=3.0;amount>=0.00015;amount/=2.0)
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{
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if(amount*1000000.0<1000.0f)
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fprintf(stderr,"waiting %f microseconds...\n",amount*1000000.0);
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else if(amount*1000.0<400.0f)
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fprintf(stderr,"waiting %f milliseconds...\n",amount*1000.0);
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else
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fprintf(stderr,"waiting %f seconds...\n",amount);
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timer.reset();
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etl::clock::sleep(amount);
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total=timer();
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if((total-amount)*1000000.0<1000.0f)
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fprintf(stderr," ** I waited %f seconds, error of %f microseconds\n",total,(total-amount)*1000000);
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else if((total-amount)*1000.0<400.0f)
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fprintf(stderr," ** I waited %f seconds, error of %f milliseconds\n",total,(total-amount)*1000);
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else
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fprintf(stderr," ** I waited %f seconds, error of %f seconds\n",total,total-amount);
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}
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return ret;
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}
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/* === E N T R Y P O I N T ================================================= */
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int main()
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{
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int error=0;
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error+=basic_test();
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return error;
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}
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