1 files changed, 11 insertions, 1 deletions
diff --git a/src/lib/eina_graph.c b/src/lib/eina_graph.c
index 1216efc..9e6569b 100644
--- a/src/lib/eina_graph.c
+++ b/src/lib/eina_graph.c
@@ -85,6 +85,12 @@ eina_graph_degree(const Eina_Graph *g, unsigned int v)
 {
    _Eina_Graph * _g = (_Eina_Graph *) g;
 
+   if (v >= _g->vertices)
+     {
+        ERR("%u is out of [0;%u[", v, _g->vertices);
+        return 0;
+     }
+
    return _g->adjs[v].count;
 }
 
@@ -138,7 +144,11 @@ eina_graph_edge_add(Eina_Graph *g, unsigned int v, unsigned int w)
 {
    _Eina_Graph * _g = (_Eina_Graph *) g;
 
-   if ((v >= _g->vertices) || (w >= _g->vertices)) return EINA_FALSE;
+   if ((v >= _g->vertices) || (w >= _g->vertices))
+     {
+        ERR("%u->%u is out of [0;%u[", v, w, _g->vertices);
+        return EINA_FALSE;
+     }
 
    if(!eina_graph_adjacents_push(&_g->adjs[v], w, _g->step)) return EINA_FALSE;
    if (v != w )