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Improve list_remove().
author
Ben Pfaff
<blp@cs.stanford.edu>
Fri, 5 Nov 2004 23:22:12 +0000
(23:22 +0000)
committer
Ben Pfaff
<blp@cs.stanford.edu>
Fri, 5 Nov 2004 23:22:12 +0000
(23:22 +0000)
src/lib/kernel/list.c
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diff --git
a/src/lib/kernel/list.c
b/src/lib/kernel/list.c
index 1227d6b6b5679f5c2708af027e0a69241684d613..173557680184707306e5c2816a564a550ef79f8a 100644
(file)
--- a/
src/lib/kernel/list.c
+++ b/
src/lib/kernel/list.c
@@
-216,15
+216,15
@@
list_push_back (struct list *list, list_elem *elem)
list_insert (list_end (list), elem);
}
list_insert (list_end (list), elem);
}
-/* Removes ELEM from its list
. Undefined behavior if ELEM is no
t
-
in a list.
*/
+/* Removes ELEM from its list
and returns the element tha
t
+
followed it. Undefined behavior if ELEM is not in a list.
*/
list_elem *
list_remove (list_elem *elem)
{
ASSERT (is_interior (elem));
elem->prev->next = elem->next;
elem->next->prev = elem->prev;
list_elem *
list_remove (list_elem *elem)
{
ASSERT (is_interior (elem));
elem->prev->next = elem->next;
elem->next->prev = elem->prev;
- return elem;
+ return elem
->next
;
}
/* Removes the front element from LIST and returns it.
}
/* Removes the front element from LIST and returns it.