1  /*
       2     NSEnumerator.h
       3  
       4     Copyright (C) 1998 Free Software Foundation, Inc.
       5  
       6     Author:  Scott Christley <scottc@net-community.com>
       7     Date: January 1998
       8  
       9     This file is part of the GNUstep Base Library.
      10  
      11     This library is free software; you can redistribute it and/or
      12     modify it under the terms of the GNU Lesser General Public
      13     License as published by the Free Software Foundation; either
      14     version 2 of the License, or (at your option) any later version.
      15  
      16     This library is distributed in the hope that it will be useful,
      17     but WITHOUT ANY WARRANTY; without even the implied warranty of
      18     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      19     Library General Public License for more details.
      20  
      21     You should have received a copy of the GNU Lesser General Public
      22     License along with this library; if not, write to the Free
      23     Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
      24     Boston, MA 02111 USA.
      25  */
      26  
      27  #ifndef __NSEnumerator_h_GNUSTEP_BASE_INCLUDE
      28  #define __NSEnumerator_h_GNUSTEP_BASE_INCLUDE
      29  #import	"../GNUstepBase/GSVersionMacros.h"
      30  
      31  #import	"NSObject.h"
      32  
      33  
      34  #if	defined(__cplusplus)
      35  extern "C" {
      36  #endif
      37  
      38  @class GS_GENERIC_CLASS(NSArray, ElementT);
      39  
      40  typedef struct
      41  {
      42    unsigned long	state;
      43    __unsafe_unretained id		*itemsPtr;
      44    unsigned long	*mutationsPtr;
      45    unsigned long	extra[5];
      46  } NSFastEnumerationState;
      47  
      48  @protocol NSFastEnumeration
      49  - (NSUInteger) countByEnumeratingWithState: (NSFastEnumerationState *)state
      50  				   objects: (__unsafe_unretained id[])stackbuf
      51  				     count: (NSUInteger)len;
      52  @end
      53  
      54  @interface GS_GENERIC_CLASS(NSEnumerator, IterT) : NSObject <NSFastEnumeration>
      55  - (GS_GENERIC_CLASS(NSArray, IterT) *) allObjects;
      56  - (GS_GENERIC_TYPE(IterT)) nextObject;
      57  @end
      58  
      59  #if	defined(__cplusplus)
      60  }
      61  #endif
      62  
      63  #endif /* __NSEnumerator_h_GNUSTEP_BASE_INCLUDE */