seconds.c

/*
 * FEPC
 * Copyright (C) 2009 Peter Gerds (gerds@mis.mpg.de)
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <sys/time.h>
#include <time.h>

/*
 * return time in seconds used by program
 */

double
seconds ()
{
    double  sec, usec;
    struct  timeval  tvd;

    gettimeofday( & tvd, NULL );

    sec  = tvd.tv_sec;
    usec = tvd.tv_usec;

    return sec + (usec * 1e-6);
}