Added graph_remove_edge()

1 files changed, 12 insertions, 0 deletions

diff --git a/src/graph.c b/src/graph.c
index 5ad439a..f3e7517 100644
--- a/src/graph.c
+++ b/src/graph.c
@@ -43,6 +43,18 @@ void graph_add_edge(Graph *g, int i, int j) {
     g->num_edges++;
 }
 
+void graph_remove_edge(Graph *g, int i, int j) {
+    LinkedListNode *in_node = linked_list_find(
+        g->vertices[i].out_neighbours,
+        &g->vertices[j]);
+    LinkedListNode *out_node = linked_list_find(
+        g->vertices[j].in_neighbours,
+        &g->vertices[j]);
+    linked_list_remove(g->vertices[i].out_neighbours, in_node);
+    linked_list_remove(g->vertices[j].in_neighbours, out_node);
+    g->num_edges--;
+}
+
 Graph *graph_read(const char *filename) {
     FILE *file = fopen(filename, "r");
     char line[1024];