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#include <time.h>
#include "_safety.h"
/** find difference between two times **/
double difftime(time_t time1, time_t time0)
{
SIGNAL_SAFE(0);
return (double)time1 - (double)time0;
}
__check_2(double, 0.0, difftime, time_t, time_t)
/***
subtracts ARGUMENT(time0) from ARGUMENT(time1).
***/
/*
RETURN_ALWAYS(the difference in seconds)
STDC(1)
*/
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