Redo tail closer to the original design. Add more tests for large data sets. (Still no -f support yet.)
diff --git a/lib/lib.h b/lib/lib.h
index 09a6825..a71582c 100644
--- a/lib/lib.h
+++ b/lib/lib.h
@@ -36,7 +36,8 @@
};
void llist_traverse(void *list, void (*using)(void *data));
-void *llist_pop(void *list); // actually void **list, but the compiler's dumb
+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);
struct double_list *dlist_add(struct double_list **list, char *data);