Add free functions for predefined llist types.

1 files changed, 3 insertions, 1 deletions

diff --git a/lib/lib.h b/lib/lib.h
index 715e78d9..f8fcd8fe 100644
--- a/lib/lib.h
+++ b/lib/lib.h
@@ -24,7 +24,9 @@ struct double_list {
   char *data;
 };
 
-void llist_traverse(void *list, void (*using)(void *data));
+void llist_free_arg(void *node);
+void llist_free_double(void *node);
+void llist_traverse(void *list, void (*using)(void *node));
 void *llist_pop(void *list);  // actually void **list
 void *dlist_pop(void *list);  // actually struct double_list **list
 void dlist_add_nomalloc(struct double_list **list, struct double_list *new);