From: Matthew Fernandez <matthew.fernandez@gmail.com>
Date: Sun, 15 Aug 2021 19:09:04 +0000 (-0700)
Subject: remove some use of open coded NULL when calling agattr
X-Git-Tag: 2.49.0~15^2~3
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=cd11d4a192f4cf38305aac797c0db32fc7280a2f;p=graphviz

remove some use of open coded NULL when calling agattr
---

diff --git a/cmd/smyrna/gui/frmobjectui.c b/cmd/smyrna/gui/frmobjectui.c
index 7a5a6c2b0..98d5b9e6f 100644
--- a/cmd/smyrna/gui/frmobjectui.c
+++ b/cmd/smyrna/gui/frmobjectui.c
@@ -504,7 +504,7 @@ static void doApply (GtkWidget * widget, int doAll)
     attr = binarySearch(view->Topview->attributes, attr_name);
     assert(attr);
     attr->propagate = prog;
-    sym = agattr(g, objKind, attr_name, (char *) 0);
+    sym = agattr(g, objKind, attr_name, NULL);
     if (!sym)			/*it shouldnt be null, just in case it is null */
 	sym = agattr(g, objKind, attr_name, def_val);
     /*graph */
diff --git a/lib/dotgen/sameport.c b/lib/dotgen/sameport.c
index 281fff8ce..396422a1b 100644
--- a/lib/dotgen/sameport.c
+++ b/lib/dotgen/sameport.c
@@ -15,7 +15,7 @@
 
 #include <math.h>
 #include	<dotgen/dot.h>
-
+#include	<stddef.h>
 
 #define MAXSAME 5		/* max no of same{head,tail} groups on a node */
 
@@ -41,8 +41,8 @@ void dot_sameports(graph_t * g)
     int n_sametail;		/* number of same_t groups on current node */
     int i;
 
-    E_samehead = agattr(g, AGEDGE, "samehead",(char*)0);
-    E_sametail = agattr(g, AGEDGE, "sametail",(char*)0);
+    E_samehead = agattr(g, AGEDGE, "samehead", NULL);
+    E_sametail = agattr(g, AGEDGE, "sametail", NULL);
     if (!(E_samehead || E_sametail))
 	return;
     for (n = agfstnode(g); n; n = agnxtnode(g, n)) {