From 58193c5f37838b49043925437e3c99711ca66407 Mon Sep 17 00:00:00 2001
From: Tom Lane <tgl@sss.pgh.pa.us>
Date: Sat, 2 Jun 2001 17:12:12 +0000
Subject: [PATCH] Paranoia about unordered comparisons in IEEE float math. If
we are given values that compare as unordered, make sure we reply that they
are equal, which is better than giving an arbitrary answer --- at least it
doesn't depend on which one is passed as which arg.
---
src/backend/utils/adt/float.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/src/backend/utils/adt/float.c b/src/backend/utils/adt/float.c
index 06405d0cee1..42239cced02 100644
--- a/src/backend/utils/adt/float.c
+++ b/src/backend/utils/adt/float.c
@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/utils/adt/float.c,v 1.71 2001/05/03 19:00:36 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/utils/adt/float.c,v 1.72 2001/06/02 17:12:12 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -566,10 +566,10 @@ float4_cmp_internal(float4 a, float4 b)
{
if (a > b)
return 1;
- else if (a == b)
- return 0;
- else
+ else if (a < b)
return -1;
+ else
+ return 0;
}
}
@@ -662,10 +662,10 @@ float8_cmp_internal(float8 a, float8 b)
{
if (a > b)
return 1;
- else if (a == b)
- return 0;
- else
+ else if (a < b)
return -1;
+ else
+ return 0;
}
}
--
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