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authorHeikki Linnakangas2014-03-06 19:19:00 +0000
committerHeikki Linnakangas2014-03-06 19:40:10 +0000
commita0c2fa9b5cfaf9595e8809a68eec929a5052834e (patch)
tree939f03940d5e9043b1a8a1957eea3f3a98ec5538
parent94ae6ba74dfc626efa271461902db1be35d2a551 (diff)
isdigit() needs an unsigned char argument.
Per the C standard, the routine should be passed an int, with a value that's representable as an unsigned char or EOF. Passing a signed char is wrong, because a negative value is not representable as an unsigned char. Unfortunately no compiler warns about that.
-rw-r--r--src/backend/utils/adt/timestamp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/backend/utils/adt/timestamp.c b/src/backend/utils/adt/timestamp.c
index 8ba3209fda5..ce30bb6e9fa 100644
--- a/src/backend/utils/adt/timestamp.c
+++ b/src/backend/utils/adt/timestamp.c
@@ -511,7 +511,7 @@ parse_sane_timezone(struct pg_tm *tm, text *zone)
* as invalid, it's enough to disallow having a digit in the first
* position of our input string.
*/
- if (isdigit(*tzname))
+ if (isdigit((unsigned char) *tzname))
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("invalid input syntax for numeric time zone: \"%s\"",