/*
 * difftime - compute the difference between two calendar times
 */
/* $Id$ */

#include <time.h>

double
difftime(time_t time1, time_t time0)
{
	/* be careful: time_t may be unsigned */
	if ((time_t)-1 > 0 && time0 > time1)
	{
		return -(double)(time0 - time1);
	}
	else
	{
		return (double)(time1 - time0);
	}
}