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more overflow work

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SCCS-file: zic.c
SCCS-SID: 7.112
This commit is contained in:
Arthur David Olson
2012-07-18 03:02:40 -04:00
committed by Paul Eggert
parent ce27b2ae9a
commit c1ff4ff5c1
1 changed files with 4 additions and 5 deletions
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zic.c
+4 -5
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@@ -2139,12 +2139,11 @@ register const int wantedy;
}
if (dayoff < 0 && !TYPE_SIGNED(time_t))
return min_time;
if (dayoff < min_time / SECSPERDAY)
return min_time;
if (dayoff > max_time / SECSPERDAY)
return max_time;
t = (time_t) dayoff * SECSPERDAY;
/*
** Cheap overflow check.
*/
if (t / SECSPERDAY != dayoff)
return (dayoff > 0) ? max_time : min_time;
return tadd(t, rp->r_tod);
}