From 192ad63bd765d448e91389c6ff1d75f8b18bb268 Mon Sep 17 00:00:00 2001
From: Neil Conway <neilc@samurai.com>
Date: Wed, 7 Jan 2004 18:56:30 +0000
Subject: More janitorial work: remove the explicit casting of NULL literals to
 a pointer type when it is not necessary to do so.

For future reference, casting NULL to a pointer type is only necessary
when (a) invoking a function AND either (b) the function has no prototype
OR (c) the function is a varargs function.
---
 src/backend/executor/execQual.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'src/backend/executor/execQual.c')

diff --git a/src/backend/executor/execQual.c b/src/backend/executor/execQual.c
index 0377f9f410..bbed6f014b 100644
--- a/src/backend/executor/execQual.c
+++ b/src/backend/executor/execQual.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/executor/execQual.c,v 1.152 2003/12/18 22:23:42 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/backend/executor/execQual.c,v 1.153 2004/01/07 18:56:26 neilc Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -548,7 +548,7 @@ GetAttributeByNum(TupleTableSlot *slot,
 	if (!AttributeNumberIsValid(attrno))
 		elog(ERROR, "invalid attribute number %d", attrno);
 
-	if (isNull == (bool *) NULL)
+	if (isNull == NULL)
 		elog(ERROR, "a NULL isNull pointer was passed");
 
 	if (TupIsNull(slot))
@@ -579,7 +579,7 @@ GetAttributeByName(TupleTableSlot *slot, char *attname, bool *isNull)
 	if (attname == NULL)
 		elog(ERROR, "invalid attribute name");
 
-	if (isNull == (bool *) NULL)
+	if (isNull == NULL)
 		elog(ERROR, "a NULL isNull pointer was passed");
 
 	if (TupIsNull(slot))
@@ -3116,7 +3116,7 @@ ExecProject(ProjectionInfo *projInfo, ExprDoneCond *isDone)
 	 * sanity checks
 	 */
 	if (projInfo == NULL)
-		return (TupleTableSlot *) NULL;
+		return NULL;
 
 	/*
 	 * get the projection info we want
-- 
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