#ifndef __RWTSTACK_H__
#define __RWTSTACK_H__

/*
 * Parameterized stack of T's, implemented using class C.
 *
 * $Id: tstack.h,v 7.5 1996/05/07 19:23:48 kyle Exp $
 *
 * (c) Copyright 1989 - 1996 Rogue Wave Software, Inc.
 * ALL RIGHTS RESERVED
 *
 * The software and information contained herein are proprietary to, and
 * comprise valuable trade secrets of, Rogue Wave Software, Inc., which
 * intends to preserve as trade secrets such software and information.
 * This software is furnished pursuant to a written license agreement and
 * may be used, copied, transmitted, and stored only in accordance with
 * the terms of such license and with the inclusion of the above copyright
 * notice.  This software and information or any other copies thereof may
 * not be provided or otherwise made available to any other person.
 *
 * Notwithstanding any other lease or license that may pertain to, or
 * accompany the delivery of, this computer software and information, the
 * rights of the Government regarding its use, reproduction and disclosure
 * are as set forth in Section 52.227-19 of the FARS Computer
 * Software-Restricted Rights clause.
 * 
 * Use, duplication, or disclosure by the Government is subject to
 * restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in
 * Technical Data and Computer Software clause at DFARS 252.227-7013.
 * Contractor/Manufacturer is Rogue Wave Software, Inc.,
 * P.O. Box 2328, Corvallis, Oregon 97339.
 *
 * This computer software and information is distributed with "restricted
 * rights."  Use, duplication or disclosure is subject to restrictions as
 * set forth in NASA FAR SUP 18-52.227-79 (April 1985) "Commercial
 * Computer Software-Restricted Rights (April 1985)."  If the Clause at
 * 18-52.227-74 "Rights in Data General" is specified in the contract,
 * then the "Alternate III" clause applies.
 *
 ***************************************************************************
 *
 * WARNING: This class is very slow when used with singly-linked lists
 *          because they use an inefficient implementation for removeLast().
 *
 ***************************************************************************
 *
 * $Log: tstack.h,v $
 * Revision 7.5  1996/05/07 19:23:48  kyle
 * Added export pragma for Mac code fragments
 *
 * Revision 7.4  1996/02/18 01:48:50  griswolf
 * Replace tabs with spaces, per Rogue Wave standard.
 *
 * Revision 7.3  1995/09/05 20:56:21  jims
 * Use new copyright macro
 *
 * Revision 7.2  1995/04/18  08:36:48  jims
 * Scopus TAN ID# 82: Use RWTExport to use templates with Tools DLL under
 * MSVC 2.x
 *
 * Revision 7.1  1994/10/16  03:07:42  josh
 * Merged 6.1 and 7.0 development trees
 *
 * Revision 6.2  1994/07/12  19:58:19  vriezen
 * Update Copyright notice
 *
 * Revision 6.1  1994/04/15  19:48:08  vriezen
 * Move all files to 6.1
 *
 * Revision 2.6  1994/01/03  23:33:28  jims
 * ObjectStore version: Add #include <ostore/ostore.hh>
 *
 * Revision 2.5  1993/12/31  00:56:30  jims
 * ObjectStore version: add get_os_typespec() static member function
 *
 * Revision 2.4  1993/09/10  02:56:53  keffer
 * Switched RCS idents to avoid spurious diffs
 *
 * Revision 2.3  1993/04/09  19:35:45  keffer
 * Indexing is now done using size_t
 *
 * Revision 2.2  1993/02/06  22:50:20  keffer
 * Ported to cfront V3.0
 *
 *    Rev 1.0   02 Mar 1992 16:10:52   KEFFER
 * Initial revision.
 */

#ifndef __RWDEFS_H__
#  include "rw/defs.h"
#endif

#ifdef RW_BROKEN_TEMPLATES

#ifdef RW_PRAGMA_EXPORT
#pragma export on
#endif

template <class T, class C> class RWTExport RWTStack
{

public:

  void          clear()         {container_.clear();}
  size_t        entries() const {return container_.entries();}
  RWBoolean     isEmpty() const {return container_.isEmpty();}
  void          push(T a)       {container_.append(a);}
  T             pop()           {return container_.removeLast();}
  T             top() const     {return container_.last();}

protected:

  C             container_;

};

#else   /* !RW_BROKEN_TEMPLATES */

template <class T, class C> class RWTExport RWTStack : private C
{

public:

  C::clear;
  C::entries;
  C::isEmpty;
  void          push(T a)       {C::append(a);}
  T             pop()           {return C::removeLast();}
  T             top() const     {return C::last();}

};

#endif  /* RW_BROKEN_TEMPLATES */

#ifdef RW_PRAGMA_EXPORT
#pragma export off
#endif

#endif  /* __RWTSTACK_H__ */
