Example of work using GLIBC

July 27, 2004

GPL Compliance for Software Developers

 
 #include <stdio.h>
  #include <unistd.h>
  #include <sys/time.h>
  #include <time.h>
 
 int main (int argc, char ** argv) {
 
 	struct timeval tv;
 
 	gettimeofday (&tv, NULL);
  	printf ("At the tone, the time will be %lu seconds and "
  	"%lu microseconds since the epoch\n", tv.tv_sec, tv.tv_usec);
  	sleep (5);
  	timerclear (&tv);
  	/* Under ten lines:
  	#define       timerclear(tvp)\
  	    ((tvp)->tv_sec = (tvp)->tv_usec = 0)
  	*/
  	gettimeofday (&tv, NULL);
  	printf ("At the tone, the time will be %lu seconds and "
  	"%lu microseconds since the epoch\n", tv.tv_sec, tv.tv_usec);
  }

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