X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=lib%2Flist.h;h=91c39663552f3e2cf8435e5571f835b69c983372;hb=9d9a0a0452a957472b0f3a9c132aea19cfb4e568;hp=ddb0e6592babd20e9108e6d22b7ace2dc34af7f4;hpb=b3907fbc6c74ddad7507d0f7abb1f5a2528cd2be;p=openvswitch

diff --git a/lib/list.h b/lib/list.h
index ddb0e659..91c39663 100644
--- a/lib/list.h
+++ b/lib/list.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008, 2009, 2010 Nicira Networks.
+ * Copyright (c) 2008, 2009, 2010, 2011 Nicira Networks.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -47,12 +47,14 @@ struct list *list_pop_front(struct list *);
 struct list *list_pop_back(struct list *);
 
 /* List elements. */
-struct list *list_front(struct list *);
-struct list *list_back(struct list *);
+struct list *list_front(const struct list *);
+struct list *list_back(const struct list *);
 
 /* List properties. */
 size_t list_size(const struct list *);
 bool list_is_empty(const struct list *);
+bool list_is_singleton(const struct list *);
+bool list_is_short(const struct list *);
 
 #define LIST_FOR_EACH(ITER, MEMBER, LIST)                               \
     for (ASSIGN_CONTAINER(ITER, (LIST)->next, MEMBER);                  \