From: Emden Gansner <emdenrg@google.com>
Date: Mon, 23 May 2016 17:51:16 +0000 (-0400)
Subject: Fix bug 2599: fdp produces unnecessarily large clusters
X-Git-Tag: TRAVIS_CI_BUILD_EXPERIMENTAL~13
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=060e2687abdd532c34de96d002a23a59a26712d8;p=graphviz

Fix bug 2599: fdp produces unnecessarily large clusters
---

diff --git a/lib/fdpgen/layout.c b/lib/fdpgen/layout.c
index 7b333a6df..e85bff86c 100644
--- a/lib/fdpgen/layout.c
+++ b/lib/fdpgen/layout.c
@@ -893,8 +893,10 @@ void layout(graph_t * g, layout_info * infop)
     cc = pg = findCComp(dg, &c_cnt, &pinned);
 
     while ((cg = *pg++)) {
+	node_t* nxtnode;
 	fdp_tLayout(cg, &xpms);
-	for (n = agfstnode(cg); n; n = agnxtnode(cg, n)) {
+	for (n = agfstnode(cg); n; n = nxtnode) {
+	    nxtnode = agnxtnode(cg, n);
 	    if (ND_clust(n)) {
 		pointf pt;
 		sg = expandCluster(n, cg);	/* attach ports to sg */