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Added a Remove() version to which the previous element needs to be passed as

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well. This is rather ugly, but it was the quickest way to provide O(1) element
removal. This class could really use some love.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39296 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Ingo Weinhold
2010-11-04 14:58:10 +00:00
parent b502275bc8
commit 5609b854b5
1 changed files with 20 additions and 2 deletions
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headers/private/kernel/util/SinglyLinkedList.h
+20 -2
View File
@@ -1,6 +1,6 @@
/*
* Copyright 2008, Axel Dörfler, [email protected]. All rights reserved.
* Copyright 2005-2008, Ingo Weinhold, [email protected].
* Copyright 2005-2010, Ingo Weinhold, [email protected].
*
* Distributed under the terms of the MIT License.
*/
@@ -143,6 +143,7 @@ class SinglyLinkedList {
inline void Add(Element* element);
inline void Remove(Element* element);
inline void Remove(Element* previous, Element* element);
inline void MoveFrom(SINGLY_LINKED_LIST_CLASS_NAME* fromList);
// O(1) if either list is empty, otherwise O(n).
@@ -182,7 +183,7 @@ SINGLY_LINKED_LIST_CLASS_NAME::Add(Element* element)
}
}
// Remove
SINGLY_LINKED_LIST_TEMPLATE_LIST
void
SINGLY_LINKED_LIST_CLASS_NAME::Remove(Element* element)
@@ -207,6 +208,23 @@ SINGLY_LINKED_LIST_CLASS_NAME::Remove(Element* element)
}
SINGLY_LINKED_LIST_TEMPLATE_LIST
void
SINGLY_LINKED_LIST_CLASS_NAME::Remove(Element* previous, Element* element)
{
// ASSERT(previous == NULL
// ? fFirst == element : sGetLink(previous)->next == element);
Link* elementLink = sGetLink(element);
if (previous == NULL)
fFirst = elementLink->next;
else
sGetLink(previous)->next = elementLink->next;
elementLink->next = NULL;
}
SINGLY_LINKED_LIST_TEMPLATE_LIST
void
SINGLY_LINKED_LIST_CLASS_NAME::MoveFrom(SINGLY_LINKED_LIST_CLASS_NAME* fromList)