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cpl_hash_set.h
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1 /**********************************************************************
2  * $Id: cpl_hash_set.h 16029 2009-01-01 19:32:39Z rouault $
3  *
4  * Name: cpl_hash_set.h
5  * Project: CPL - Common Portability Library
6  * Purpose: Hash set functions.
7  * Author: Even Rouault, <even dot rouault at mines dash paris dot org>
8  *
9  **********************************************************************
10  * Copyright (c) 2008, Even Rouault, <even dot rouault at mines dash paris dot org>
11  *
12  * Permission is hereby granted, free of charge, to any person obtaining a
13  * copy of this software and associated documentation files (the "Software"),
14  * to deal in the Software without restriction, including without limitation
15  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
16  * and/or sell copies of the Software, and to permit persons to whom the
17  * Software is furnished to do so, subject to the following conditions:
18  *
19  * The above copyright notice and this permission notice shall be included
20  * in all copies or substantial portions of the Software.
21  *
22  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
23  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
24  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
25  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
26  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
27  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
28  * DEALINGS IN THE SOFTWARE.
29  ****************************************************************************/
30 
31 #ifndef _CPL_HASH_SET_H_INCLUDED
32 #define _CPL_HASH_SET_H_INCLUDED
33 
34 #include "cpl_port.h"
35 
47 CPL_C_START
48 
49 /* Types */
50 
51 typedef struct _CPLHashSet CPLHashSet;
52 
53 typedef unsigned long (*CPLHashSetHashFunc)(const void* elt);
54 
55 typedef int (*CPLHashSetEqualFunc)(const void* elt1, const void* elt2);
56 
57 typedef void (*CPLHashSetFreeEltFunc)(void* elt);
58 
59 typedef int (*CPLHashSetIterEltFunc)(void* elt, void* user_data);
60 
61 /* Functions */
62 
63 CPLHashSet CPL_DLL * CPLHashSetNew(CPLHashSetHashFunc fnHashFunc,
64  CPLHashSetEqualFunc fnEqualFunc,
65  CPLHashSetFreeEltFunc fnFreeEltFunc);
66 
67 void CPL_DLL CPLHashSetDestroy(CPLHashSet* set);
68 
69 int CPL_DLL CPLHashSetSize(const CPLHashSet* set);
70 
71 void CPL_DLL CPLHashSetForeach(CPLHashSet* set,
72  CPLHashSetIterEltFunc fnIterFunc,
73  void* user_data);
74 
75 int CPL_DLL CPLHashSetInsert(CPLHashSet* set, void* elt);
76 
77 void CPL_DLL * CPLHashSetLookup(CPLHashSet* set, const void* elt);
78 
79 int CPL_DLL CPLHashSetRemove(CPLHashSet* set, const void* elt);
80 
81 unsigned long CPL_DLL CPLHashSetHashPointer(const void* elt);
82 
83 int CPL_DLL CPLHashSetEqualPointer(const void* elt1, const void* elt2);
84 
85 unsigned long CPL_DLL CPLHashSetHashStr(const void * pszStr);
86 
87 int CPL_DLL CPLHashSetEqualStr(const void* pszStr1, const void* pszStr2);
88 
89 CPL_C_END
90 
91 #endif /* _CPL_HASH_SET_H_INCLUDED */
92 

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