CDE/cde/lib/DtMmdb/dstr/void_ptr_array.h

/*
 * CDE - Common Desktop Environment
 *
 * Copyright (c) 1993-2012, The Open Group. All rights reserved.
 *
 * These libraries and programs are free software; you can
 * redistribute them and/or modify them under the terms of the GNU
 * Lesser General Public License as published by the Free Software
 * Foundation; either version 2 of the License, or (at your option)
 * any later version.
 *
 * These libraries and programs are distributed in the hope that
 * they will be useful, but WITHOUT ANY WARRANTY; without even the
 * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 * PURPOSE. See the GNU Lesser General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with these libraries and programs; if not, write
 * to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
 * Floor, Boston, MA 02110-1301 USA
 */
/*
 * $XConsortium: void_ptr_array.h /main/4 1996/07/18 14:31:24 drk $
 *
 * Copyright (c) 1993 HAL Computer Systems International, Ltd.
 * All rights reserved.  Unpublished -- rights reserved under
 * the Copyright Laws of the United States.  USE OF A COPYRIGHT
 * NOTICE IS PRECAUTIONARY ONLY AND DOES NOT IMPLY PUBLICATION
 * OR DISCLOSURE.
 * 
 * THIS SOFTWARE CONTAINS CONFIDENTIAL INFORMATION AND TRADE
 * SECRETS OF HAL COMPUTER SYSTEMS INTERNATIONAL, LTD.  USE,
 * DISCLOSURE, OR REPRODUCTION IS PROHIBITED WITHOUT THE
 * PRIOR EXPRESS WRITTEN PERMISSION OF HAL COMPUTER SYSTEMS
 * INTERNATIONAL, LTD.
 * 
 *                         RESTRICTED RIGHTS LEGEND
 * Use, duplication, or disclosure by the Government is subject
 * to the restrictions as set forth in subparagraph (c)(l)(ii)
 * of the Rights in Technical Data and Computer Software clause
 * at DFARS 252.227-7013.
 *
 *          HAL COMPUTER SYSTEMS INTERNATIONAL, LTD.
 *                  1315 Dell Avenue
 *                  Campbell, CA  95008
 * 
 */



#ifndef _void_ptr_array_h
#define _void_ptr_array_h 1

#include  "utility/funcs.h"
#include  "utility/buffer.h"

//**************************************************************
//
// an void_ptr_array class
// holding voidPtr elements in range [0, count()-1]
//
//**************************************************************

class void_ptr_array : public buffer 
{

public:
   void_ptr_array(int exp_size) ;
   void_ptr_array(void_ptr_array&) ;
   virtual ~void_ptr_array() {};

   Boolean expandWith(int extra_void_ptrs);

   Boolean insert(void* element, int i) ;

   void reset_vptr(voidPtr value);  // set all cells to value

   inline void reset_elmts(int i) { v_elmts = i; };  
   inline int no_elmts() { return v_elmts; };    

   inline int count() {
      return (buf_sz() / sizeof(voidPtr) );
   };

// terminate value: -1
   inline int first() {
      return ( count() == 0 ) ? -1 : 0;
   };
   inline virtual void* operator [](int i) {
      return ((voidPtr*)(v_base))[i] ;
   };
   inline void next(int& ind) {
      if ( ind == count() -1 )
      ind = -1;
   else
      ind++;
   };

   friend ostream& operator <<(ostream&, void_ptr_array&);

protected:

   int v_elmts;
};

#endif