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/* Interface for Objective-C Collection object
Copyright (C) 1993 Free Software Foundation, Inc.
Written by: R. Andrew McCallum <mccallum@cs.rochester.edu>
Dept. of Computer Science, U. of Rochester, Rochester, NY 14627
This file is part of the GNU Objective-C Collection library.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* This is the abstract superclass that satisfies the Collecting
protocol, without using any instance variables.
*/
#ifndef __Collection_h_INCLUDE_GNU
#define __Collection_h_INCLUDE_GNU
#include <coll/objc-gnu2next.h>
#include <objc/Object.h>
#include <coll/Collecting.h>
#include <coll/collstd.h>
#include <coll/collhash.h>
@interface Collection : Object <Collecting>
{
}
+ initialize;
- printElement: (elt)anElement;
- printForDebugger;
@end
// #warning fix this macro
#define FOR_COLL(ACOLL, ELT) \
{ \
void *_es = [ACOLL initEnumState]; \
while ([ACOLL getNextElement:&(ELT) withEnumState:&_es]) \
{
#define FOR_COLL_END \
} \
[ACOLL freeEnumState:_es]; \
}
/* The only subclassResponsibilities in Collection are:
addElement:
removeElement:
getNextElement:withEnumState:
empty
But subclasses may need to override the following for correctness:
contentEncoding
comparisonFunction
but subclasses will want to override others as well in order to
increase efficiency, especially:
count
and perhaps:
includesElement:
occurrencesOfElement:
uniqueContents
withElementsCall:whileTrue:
withElementsCall:
isEmpty
freeObjects
*/
#endif /* __Collection_h_INCLUDE_GNU */
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