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Win32 can't catch the exception thrown by INT_MIN / -1 or INT_MIN * -1,

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so on that platform we test for those before the computation and throw
an "out of range" error.

Backpatch to 8.1.X.
This commit is contained in:
Bruce Momjian 2006-06-12 16:09:11 +00:00
parent e71e02d926
commit 9fc6f4e1ae
1 changed files with 23 additions and 1 deletions
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24
src/backend/utils/adt/int.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/int.c,v 1.72 2006/03/11 01:19:22 neilc Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/int.c,v 1.73 2006/06/12 16:09:11 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -735,6 +735,17 @@ int4mul(PG_FUNCTION_ARGS)
int32 arg2 = PG_GETARG_INT32(1);
int32 result;
#ifdef WIN32
/*
* Win32 doesn't throw a catchable exception for
* SELECT -2147483648 /* INT_MIN */ * (-1);
*/
if (arg2 == -1 && arg1 == INT_MIN)
ereport(ERROR,
(errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
errmsg("integer out of range")));
#endif
result = arg1 * arg2;
/*
@ -770,6 +781,17 @@ int4div(PG_FUNCTION_ARGS)
(errcode(ERRCODE_DIVISION_BY_ZERO),
errmsg("division by zero")));
#ifdef WIN32
/*
* Win32 doesn't throw a catchable exception for
* SELECT -2147483648 /* INT_MIN */ / (-1);
*/
if (arg2 == -1 && arg1 == INT_MIN)
ereport(ERROR,
(errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
errmsg("integer out of range")));
#endif
result = arg1 / arg2;
/*