common undoClusterEdges: 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/common/utils.c b/lib/common/utils.c
index 9837b691e15bf714dc224387fe07f10481bdb4f4..5e79b6a491995aef4a84bc177687f8c7611640e5 100644 (file)
--- a/lib/common/utils.c
+++ b/lib/common/utils.c
@@ -1211,7 +1211,7 @@ void undoClusterEdges(graph_t * g)
     if (!ecnt) return;
     clg = agsubg(g, "__clusternodes",1);
     agbindrec(clg, "Agraphinfo_t", sizeof(Agraphinfo_t), true);
-    edge_t **edgelist = N_NEW(ecnt, edge_t*);
+    edge_t **edgelist = gv_calloc(ecnt, sizeof(edge_t*));
     for (n = agfstnode(g); n; n = agnxtnode(g, n)) {
        for (e = agfstout(g, n); e; e = agnxtout(g, e)) {
            if (ED_compound(e))