pgsql: isdigit() needs an unsigned char argument.

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.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/a0c2fa9b5cfaf9595e8809a68eec929a5052834e

Modified Files
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src/backend/utils/adt/timestamp.c |    2 +-
1 file changed, 1 insertion(+), 1 deletion(-)