increment_overflow_time
if (increment_overflow_time(&t, leapcorr(sp, t))
if (increment_overflow_time(&janfirst1, -yearsecs)) {
if (increment_overflow_time(&janfirst1, yearsecs)
if (! increment_overflow_time(&sp->ats[timecnt],
if (! increment_overflow_time(&sp->ats[timecnt],
if (increment_overflow_time(&janfirst, janoffset + yearsecs))
if (increment_overflow_time(&t_corr, ls.ls_corr)) {
static bool increment_overflow_time(__time_t *, int_fast32_2s);