The degree of missing vertices is now always 0.

diff --git a/modules/src/data/bigraph.c b/modules/src/data/bigraph.c
index 7f44ee0..5b7232f 100644 (file)
--- a/modules/src/data/bigraph.c
+++ b/modules/src/data/bigraph.c
@@ -227,7 +227,8 @@ int graph_get_vertex_degree(struct graph* g, void* data)
 
     lazy_init(g);
     vertex = hashtable_get(&g->vertices, data);
-    assert(vertex);
+    if (!vertex)
+        return 0;
     return vertex->degree;
 }