Harden find_connected against nullptr

diff --git a/src/sim_node.c b/src/sim_node.c
index e9656c18a4228fba6689eed4132f4689bb70861c..1b35650e1ce87bf80dbaedded9d5c8e8761c2399 100644 (file)
--- a/src/sim_node.c
+++ b/src/sim_node.c
@@ -15,7 +15,7 @@ static void   find_connected(t_node *node, t_vec *connected_nodes)
        t_node          *neigh_node;
        t_mosfet        *mosfet;
 
-       if (node->checked)
+       if (!node || node->checked)
                return ;
        node->checked = 1;
        ft_vec_append(connected_nodes, &node);