From a252994abeebc4832e2c9c09754d02ace00970b9 Mon Sep 17 00:00:00 2001
From: Bruce Momjian <bruce@momjian.us>
Date: Thu, 4 Jan 2007 05:18:39 +0000
Subject: [PATCH] Simplify assignment of Inf for pow Nan (don't worry about the
sign).
---
src/backend/utils/adt/float.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/src/backend/utils/adt/float.c b/src/backend/utils/adt/float.c
index 128f147debd..7651da166ed 100644
--- a/src/backend/utils/adt/float.c
+++ b/src/backend/utils/adt/float.c
@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/utils/adt/float.c,v 1.139 2007/01/03 22:05:00 momjian Exp $
+ * $PostgreSQL: pgsql/src/backend/utils/adt/float.c,v 1.140 2007/01/04 05:18:39 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -1453,7 +1453,8 @@ dpow(PG_FUNCTION_ARGS)
if (errno == EDOM && isnan(result))
{
if ((fabs(arg1) > 1 && arg2 >= 0) || (fabs(arg1) < 1 && arg2 < 0))
- result = (arg1 >= 0) ? get_float8_infinity() : -get_float8_infinity();
+ /* The sign if Inf is not significant in this case. */
+ result = get_float8_infinity();
else if (fabs(arg1) != 1)
result = 0;
else
--
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