fdpgen expandCluster: use cgraph wrapper for allocation

The lib/cgraph/alloc.h wrappers are similar to the older lib/common/memory.h
wrappers except (1) they are header-only and (2) they live in a directory
(cgraph) that is at the root of the dependency tree. The long term plan is to
replace all use of lib/common/memory.h with lib/cgraph/alloc.h.

diff --git a/lib/fdpgen/layout.c b/lib/fdpgen/layout.c
index dbaf2d93043aa1d363b05fcd97275ff96284c09b..a60363bc34bcf1d4c2f794dec6810075f56bafc5 100644 (file)
--- a/lib/fdpgen/layout.c
+++ b/lib/fdpgen/layout.c
@@ -707,14 +707,13 @@ static graph_t *expandCluster(node_t * n, graph_t * cg)
     erec *ep;
     erec *next;
     graph_t *sg = ND_clust(n);
-    bport_t *pp;
     int sz = WDEG(n);
     int idx = 0;
     double bnd;
 
     if (sz != 0) {
        /* freed in cleanup_subgs */
-       pp = N_NEW(sz + 1, bport_t);
+       bport_t *pp = gv_calloc(sz + 1, sizeof(bport_t));
 
        /* create sorted list of edges of n */
        es = ep = getEdgeList(n, cg);