From 1a9c9bf32f33159dc812c8eb18f46ef8ec885c21 Mon Sep 17 00:00:00 2001
From: cuz <cuz@b7a2c559-68d2-44c3-8de9-860c34a00d81>
Date: Thu, 18 Mar 2004 09:43:08 +0000
Subject: [PATCH] Output a warning for a call to memset with a count of zero.

git-svn-id: svn://svn.cc65.org/cc65/trunk@2939 b7a2c559-68d2-44c3-8de9-860c34a00d81
---
 src/cc65/stdfunc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/cc65/stdfunc.c b/src/cc65/stdfunc.c
index f1fef71aa..763c895ce 100644
--- a/src/cc65/stdfunc.c
+++ b/src/cc65/stdfunc.c
@@ -188,6 +188,9 @@ static void StdFunc_memset (FuncDesc* F attribute ((unused)),
      */
     Flags = ParseArg (Arg3Type, &Arg);
     if (Flags & CF_CONST) {
+	if (Arg.ConstVal == 0) {
+	    Warning ("Call to memset has no effect");
+	}
         ExprLoad (CF_FORCECHAR, 0, &Arg);
     }