From: ellson <devnull@localhost>
Date: Tue, 18 Jul 2006 18:07:44 +0000 (+0000)
Subject: janitor - recode to avoid: "dereferencing type-punned pointer will break strict-alias... 
X-Git-Tag: LAST_LIBGRAPH~32^2~6063
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=b32ab84769cdad7ea0ff4b8f259050662741fa67;p=graphviz

janitor - recode to avoid: "dereferencing type-punned pointer will break strict-aliasing rules"
---

diff --git a/lib/agraph/edge.c b/lib/agraph/edge.c
index 427d2b526..8b1573f62 100644
--- a/lib/agraph/edge.c
+++ b/lib/agraph/edge.c
@@ -151,14 +151,17 @@ void agedgesetop(Agraph_t * g, Agedge_t * e, int ins)
 {
     Dtlink_t **seq_set, **id_set;
     Agnode_t *n;		/* node where <e> is referenced */
+    Agedge_t **tmp;		
 
     if (AGTYPE(e) == AGOUTEDGE) {
 	n = AGOUT2IN(e)->node;
-	seq_set = (Dtlink_t **) & (n->out);
+	tmp = &(n->out); /* avoiding - "dereferencing type-punned pointer will break strict-aliasing rules" */
+	seq_set = (Dtlink_t **)tmp;
 	id_set = &(n->outid);
     } else {
 	n = AGIN2OUT(e)->node;
-	seq_set = (Dtlink_t **) & (n->in);
+	tmp = &(n->in);  
+	seq_set = (Dtlink_t **)tmp;
 	id_set = &(n->inid);
     }
 
diff --git a/lib/agraph/flatten.c b/lib/agraph/flatten.c
index 209330f11..e8ddbe904 100644
--- a/lib/agraph/flatten.c
+++ b/lib/agraph/flatten.c
@@ -26,8 +26,13 @@ void agflatten_elist(Dict_t * d, Dtlink_t ** lptr)
 
 void agflatten_edges(Agraph_t * g, Agnode_t * n)
 {
-    agflatten_elist(g->e_seq, (Dtlink_t **) & (n->out));
-    agflatten_elist(g->e_seq, (Dtlink_t **) & (n->in));
+    Agedge_t **tmp;
+
+    tmp = &(n->out); /* avoiding - "dereferencing type-punned pointer will break strict-aliasing rules" */
+
+    agflatten_elist(g->e_seq, (Dtlink_t **) tmp);
+    tmp = &(n->in);
+    agflatten_elist(g->e_seq, (Dtlink_t **) tmp);
 }
 
 void agflatten(Agraph_t * g, int flag)