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Some platforms set errno on pow(), exp() overflow, some do not, so if

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isinf(), fall through to our own infinity checks.
This commit is contained in:
Bruce Momjian
2007-01-02 22:19:42 +00:00
parent 09d09b988d
commit 182676ae27
1 changed files with 3 additions and 3 deletions
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6
src/backend/utils/adt/float.c
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@@ -8,7 +8,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/float.c,v 1.134 2007/01/02 21:25:50 momjian Exp $ * $PostgreSQL: pgsql/src/backend/utils/adt/float.c,v 1.135 2007/01/02 22:19:42 momjian Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@@ -1444,7 +1444,7 @@ dpow(PG_FUNCTION_ARGS)
*/ */
errno = 0; errno = 0;
result = pow(arg1, arg2); result = pow(arg1, arg2);
if (errno != 0) if (errno != 0 && !isinf(result))
ereport(ERROR, ereport(ERROR,
(errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE), (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
errmsg("result is out of range"))); errmsg("result is out of range")));
@@ -1469,7 +1469,7 @@ dexp(PG_FUNCTION_ARGS)
*/ */
errno = 0; errno = 0;
result = exp(arg1); result = exp(arg1);
if (errno != 0) if (errno != 0 && !isinf(result))
ereport(ERROR, ereport(ERROR,
(errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE), (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
errmsg("result is out of range"))); errmsg("result is out of range")));