gmtime_r
if (gmtime_r(&gmt_time, >imebuf) != 0)
if (gmtime_r(&gmt_time, >imebuf) == NULL)
if (gmtime_r(&posixtime, &tme) == NULL)
if (gmtime_r(timer, ts2) == NULL)
if (gmtime_r(timer, result) == NULL)
struct tm *gmtime_r(const time_t *, struct tm *);
time = gmtime_r(&clock, &res);
if (gmtime_r(&t, tm) == NULL)
struct tm *gmtime_r(const time_t *timep, struct tm *result);
gmtime_r(&ts.tv_sec, &tm);
gmtime_r(&ts.tv_sec, &tm);
gmtime_r(&tt, &GMT);
gmtime_r(&tt, &GMT);
gmtime_r(&t, &tm);
gmtime_r(&tt, &GMT);
gmtime_r(&rtc_secs, &tm);
gmtime_r(&difftime, &otztm);
(void)gmtime_r(&now, &utc);
(void)gmtime_r(&tim, &gm);
gmtime_r(&t1, <);