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#include <stdint.h>
#include <stdlib.h>
#include <sys/time.h>
#include "dat.h"
int64
nanoseconds(void)
{
int r;
struct timeval tv;
r = gettimeofday(&tv, 0);
if (r != 0) return warnx("gettimeofday"), -1; // can't happen
return ((int64)tv.tv_sec)*1000000000 + ((int64)tv.tv_usec)*1000;
}