Stellarium  0.90.0
dict-list.h
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30 /*
31 ** Author: Eric Veach, July 1994.
32 **
33 */
34 
35 #ifndef __dict_list_h_
36 #define __dict_list_h_
37 
38 /* Use #define's so that another heap implementation can use this one */
39 
40 #define DictKey DictListKey
41 #define Dict DictList
42 #define DictNode DictListNode
43 
44 #define dictNewDict(frame,leq) __gl_dictListNewDict(frame,leq)
45 #define dictDeleteDict(dict) __gl_dictListDeleteDict(dict)
46 
47 #define dictSearch(dict,key) __gl_dictListSearch(dict,key)
48 #define dictInsert(dict,key) __gl_dictListInsert(dict,key)
49 #define dictInsertBefore(dict,node,key) __gl_dictListInsertBefore(dict,node,key)
50 #define dictDelete(dict,node) __gl_dictListDelete(dict,node)
51 
52 #define dictKey(n) __gl_dictListKey(n)
53 #define dictSucc(n) __gl_dictListSucc(n)
54 #define dictPred(n) __gl_dictListPred(n)
55 #define dictMin(d) __gl_dictListMin(d)
56 #define dictMax(d) __gl_dictListMax(d)
57 
58 typedef void *DictKey;
59 typedef struct Dict Dict;
60 typedef struct DictNode DictNode;
61 
62 Dict* dictNewDict(void *frame,
63  int (*leq)(void *frame, DictKey key1, DictKey key2));
64 void dictDeleteDict(Dict *dict);
65 
66 /* Search returns the node with the smallest key greater than or equal
67  * to the given key. If there is no such key, returns a node whose
68  * key is NULL. Similarly, Succ(Max(d)) has a NULL key, etc.
69  */
70 DictNode* dictSearch(Dict* dict, DictKey key);
71 DictNode* dictInsertBefore(Dict* dict, DictNode* node, DictKey key);
72 void dictDelete(Dict* dict, DictNode* node);
73 
74 #define __gl_dictListKey(n) ((n)->key)
75 #define __gl_dictListSucc(n) ((n)->next)
76 #define __gl_dictListPred(n) ((n)->prev)
77 #define __gl_dictListMin(d) ((d)->head.next)
78 #define __gl_dictListMax(d) ((d)->head.prev)
79 #define __gl_dictListInsert(d,k) (dictInsertBefore((d),&(d)->head,(k)))
80 
81 /*** Private data structures ***/
82 
83 struct DictNode
84 {
85  DictKey key;
86  DictNode* next;
87  DictNode* prev;
88 };
89 
90 struct Dict
91 {
92  DictNode head;
93  void* frame;
94  int (*leq)(void *frame, DictKey key1, DictKey key2);
95 };
96 
97 #endif /* __dict_list_h_ */
Definition: dict-list.h:90