* A simple stop watch class. */
/*
- * GiNaC Copyright (C) 1999-2005 Johannes Gutenberg University Mainz, Germany
+ * GiNaC Copyright (C) 1999-2015 Johannes Gutenberg University Mainz, Germany
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
#ifdef HAVE_RUSAGE
#include <sys/resource.h>
#include <unistd.h>
#include <ctime>
#endif
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
#include "timer.h"
timer::timer() : on(false)
double timer::read()
{
- double elapsed;
#ifdef HAVE_RUSAGE
if (running())
getrusage(RUSAGE_SELF, &used2);
- elapsed = ((used2.ru_utime.tv_sec - used1.ru_utime.tv_sec) +
- (used2.ru_stime.tv_sec - used1.ru_stime.tv_sec) +
- (used2.ru_utime.tv_usec - used1.ru_utime.tv_usec) * 1e-6 +
- (used2.ru_stime.tv_usec - used1.ru_stime.tv_usec) * 1e-6);
+ return ((used2.ru_utime.tv_sec - used1.ru_utime.tv_sec) +
+ (used2.ru_stime.tv_sec - used1.ru_stime.tv_sec) +
+ (used2.ru_utime.tv_usec - used1.ru_utime.tv_usec) * 1e-6 +
+ (used2.ru_stime.tv_usec - used1.ru_stime.tv_usec) * 1e-6);
#else
if (running())
used2 = clock();
- elapsed = double(used2 - used1)/CLOCKS_PER_SEC;
+ return double(used2 - used1)/CLOCKS_PER_SEC;
#endif
- // Results more accurate than 10ms are pointless:
- return elapsed;
- return 0.01*int(elapsed*100+0.5);
}
bool timer::running()