diff options
author | Mike Buland <eichlan@xagasoft.com> | 2007-07-03 00:28:59 +0000 |
---|---|---|
committer | Mike Buland <eichlan@xagasoft.com> | 2007-07-03 00:28:59 +0000 |
commit | ac517a2b7625e0aa0862679e961c6349f859ea3b (patch) | |
tree | e3e27a6b9bd5e2be6150088495c91fc91786ad9d /src/old/linkedlist.h | |
parent | f8d4301e9fa4f3709258505941e37fab2eadadc6 (diff) | |
parent | bd865cee5f89116c1f054cd0e5c275e97c2d0a9b (diff) | |
download | libbu++-ac517a2b7625e0aa0862679e961c6349f859ea3b.tar.gz libbu++-ac517a2b7625e0aa0862679e961c6349f859ea3b.tar.bz2 libbu++-ac517a2b7625e0aa0862679e961c6349f859ea3b.tar.xz libbu++-ac517a2b7625e0aa0862679e961c6349f859ea3b.zip |
The reorg is being put in trunk, I think it's ready. Now we just get to find
out how many applications won't work anymore :)
Diffstat (limited to 'src/old/linkedlist.h')
-rw-r--r-- | src/old/linkedlist.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/src/old/linkedlist.h b/src/old/linkedlist.h new file mode 100644 index 0000000..e430108 --- /dev/null +++ b/src/old/linkedlist.h | |||
@@ -0,0 +1,87 @@ | |||
1 | /**@file | ||
2 | * Describes the LinkedList implementation of the List ADT. | ||
3 | *@author Mike Buland | ||
4 | */ | ||
5 | |||
6 | #ifndef LINKEDLIST_H | ||
7 | #define LINKEDLIST_H | ||
8 | |||
9 | #include <stdio.h> | ||
10 | #include "list.h" | ||
11 | |||
12 | /** A linked-item implementation of the List ADT. Since the data is linked | ||
13 | * sequentially this is a great choice for lists that will grow and shrink | ||
14 | * a lot, but don't require as much random access. This implementation | ||
15 | * includes optomizations that make iterating through data, and appending | ||
16 | * items to the list take O(1) time. | ||
17 | *@author Mike Buland | ||
18 | */ | ||
19 | class LinkedList : public List | ||
20 | { | ||
21 | public: | ||
22 | /** | ||
23 | * Construct a blank LinkedList. | ||
24 | */ | ||
25 | LinkedList(); | ||
26 | |||
27 | /** | ||
28 | * Delete all list data, but do not delete any of the contained elements. | ||
29 | */ | ||
30 | virtual ~LinkedList(); | ||
31 | |||
32 | void *getAt( int nIndex ); | ||
33 | void append( void *pData ); | ||
34 | void insertBefore( void *pData, int nPos = 0 ); | ||
35 | int getSize( ); | ||
36 | bool isEmpty( ); | ||
37 | void deleteAt( int nIndex ); | ||
38 | void empty(); | ||
39 | void setSize( int nNewSize ); | ||
40 | void setAt( int nIndex, void *pData ); | ||
41 | |||
42 | private: | ||
43 | /** | ||
44 | * A link in the linked list. | ||
45 | */ | ||
46 | class Link | ||
47 | { | ||
48 | public: | ||
49 | /** | ||
50 | * Construct an empty link. | ||
51 | */ | ||
52 | Link() | ||
53 | { | ||
54 | pData = NULL; | ||
55 | pNext = NULL; | ||
56 | } | ||
57 | /** | ||
58 | * Construct a link filled in with useful data. | ||
59 | *@param newData The data this link should hold. | ||
60 | *@param newNext The next link that this link should point to. | ||
61 | */ | ||
62 | Link( void *newData = NULL, Link * newNext = NULL ) | ||
63 | { | ||
64 | pData = newData; | ||
65 | pNext = newNext; | ||
66 | } | ||
67 | void *pData; /**< A pointer to the contained data. */ | ||
68 | Link *pNext; /**< A pointer to the next link in the chain */ | ||
69 | }; | ||
70 | |||
71 | /** | ||
72 | * Finds a pointer to the link at index index. This is the core function | ||
73 | * called for all seek operations, and has been optimized as heavily as | ||
74 | * possible. | ||
75 | *@param index The zero-based index of the desired element. | ||
76 | *@returns A pointer to the requested Link, or NULL if it isn't found. | ||
77 | */ | ||
78 | Link *getPtrTo( int index ); | ||
79 | Link *pBase; /**< The first link in the list. */ | ||
80 | Link *pTop; /**< The Last link in the list. */ | ||
81 | Link *pLast; /**< The previously requested link. */ | ||
82 | int nSize; /**< The number of contained links. */ | ||
83 | int nLast; /**< The index of the previously requested link. */ | ||
84 | }; | ||
85 | |||
86 | #endif | ||
87 | |||