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.

diff --git a/src/backend/utils/adt/float.c b/src/backend/utils/adt/float.c
index 06405d0cee152e4790585c03ef948a75e1bde8b4..42239cced021066975358312035c975e93205a9d 100644 (file)
--- 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;
        }
 }