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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@21245 72102866-910b-0410-8b05-ffd578937521
140 lines
4.9 KiB
C
140 lines
4.9 KiB
C
/* NSHashTable interface for GNUStep.
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* Copyright (C) 1994, 1995, 1996, 1997, 2002 Free Software Foundation, Inc.
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*
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* Author: Albin L. Jones <Albin.L.Jones@Dartmouth.EDU>
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* Created: Mon Dec 12 23:56:03 EST 1994
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* Updated: Thu Mar 21 15:13:46 EST 1996
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* Serial: 96.03.21.06
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* Modified by: Richard Frith-Macdonald <rfm@gnu.org>
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*
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* This file is part of the GNUstep Base Library.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111 USA.
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*/
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#ifndef __NSHashTable_h_GNUSTEP_BASE_INCLUDE
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#define __NSHashTable_h_GNUSTEP_BASE_INCLUDE 1
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/**** Included Headers *******************************************************/
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#include <Foundation/NSObject.h>
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#include <Foundation/NSString.h>
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#include <Foundation/NSArray.h>
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/**** Type, Constant, and Macro Definitions **********************************/
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/**
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* Hash table type ... an opaque pointer to a data structure.
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*/
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typedef void* NSHashTable;
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/**
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* Type for enumerating.<br />
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* NB. Implementation detail ... in GNUstep the layout <strong>must</strong>
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* correspond to that used by the GSIMap macros.
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*/
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typedef struct { void *map; void *node; size_t bucket; } NSHashEnumerator;
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/** Callback functions for an NSHashTable. See NSCreateHashTable() . <br />*/
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typedef struct _NSHashTableCallBacks
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{
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/** <code>unsigned int (*hash)(NSHashTable *, const void *)</code> ...
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* Hashing function. NOTE: Elements with equal values must have equal hash
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* function values. The default if NULL uses the pointer addresses
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* directly. <br/>*/
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unsigned int (*hash)(NSHashTable *, const void *);
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/** <code>BOOL (*isEqual)(NSHashTable *, const void *, const void *)</code>
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* ... Comparison function. The default if NULL uses '<code>==</code>'.
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* <br/>*/
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BOOL (*isEqual)(NSHashTable *, const void *, const void *);
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/** <code>void (*retain)(NSHashTable *, const void *)</code> ...
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* Retaining function called when adding elements to the table.
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* The default if NULL is a no-op (no reference counting). <br/> */
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void (*retain)(NSHashTable *, const void *);
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/** <code>void (*release)(NSHashTable *, void *)</code> ... Releasing
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* function called when a data element is removed from the table.
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* The default if NULL is a no-op (no reference counting).<br/>*/
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void (*release)(NSHashTable *, void *);
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/** <code>NSString *(*describe)(NSHashTable *, const void *)</code> ...
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* Description function. The default if NULL prints boilerplate. <br /> */
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NSString *(*describe)(NSHashTable *, const void *);
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} NSHashTableCallBacks;
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GS_EXPORT const NSHashTableCallBacks NSIntHashCallBacks;
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GS_EXPORT const NSHashTableCallBacks NSNonOwnedPointerHashCallBacks;
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GS_EXPORT const NSHashTableCallBacks NSNonRetainedObjectHashCallBacks;
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GS_EXPORT const NSHashTableCallBacks NSObjectHashCallBacks;
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GS_EXPORT const NSHashTableCallBacks NSOwnedPointerHashCallBacks;
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GS_EXPORT const NSHashTableCallBacks NSPointerToStructHashCallBacks;
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GS_EXPORT NSHashTable *
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NSCreateHashTable(NSHashTableCallBacks callBacks,
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unsigned int capacity);
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GS_EXPORT NSHashTable *
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NSCreateHashTableWithZone(NSHashTableCallBacks callBacks,
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unsigned int capacity,
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NSZone *zone);
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GS_EXPORT NSHashTable *
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NSCopyHashTableWithZone(NSHashTable *table, NSZone *zone);
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GS_EXPORT void
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NSFreeHashTable(NSHashTable *table);
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GS_EXPORT void
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NSResetHashTable(NSHashTable *table);
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GS_EXPORT BOOL
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NSCompareHashTables(NSHashTable *table1, NSHashTable *table2);
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GS_EXPORT unsigned int
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NSCountHashTable(NSHashTable *table);
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GS_EXPORT void *
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NSHashGet(NSHashTable *table, const void *element);
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GS_EXPORT NSArray *
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NSAllHashTableObjects(NSHashTable *table);
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GS_EXPORT void
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NSEndHashTableEnumeration(NSHashEnumerator *enumerator);
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GS_EXPORT NSHashEnumerator
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NSEnumerateHashTable(NSHashTable *table);
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GS_EXPORT void *
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NSNextHashEnumeratorItem(NSHashEnumerator *enumerator);
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GS_EXPORT void
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NSHashInsert(NSHashTable *table, const void *element);
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GS_EXPORT void
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NSHashInsertKnownAbsent(NSHashTable *table, const void *element);
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GS_EXPORT void *
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NSHashInsertIfAbsent(NSHashTable *table, const void *element);
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GS_EXPORT void
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NSHashRemove(NSHashTable *table, const void *element);
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GS_EXPORT NSString *
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NSStringFromHashTable(NSHashTable *table);
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#endif /* __NSHashTable_h_GNUSTEP_BASE_INCLUDE */
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