/***************************************************************************/

/*
 * Portions Copyright (c) 1999 GMRS Software GmbH
 * Carl-von-Linde-Str. 38, D-85716 Unterschleissheim, http://www.gmrs.de
 * All rights reserved.
 *
 * Author: Arno Unkrig <arno@unkrig.de>
 *
 * All advertising materials mentioning features or use of this software
 * must display the following acknowledgement:
 * "This product includes software developed by GMRS Software GmbH."
 * The name of GMRS Software GmbH may not be used to endorse or promote
 * products derived from this software without specific prior written
 * permission.
 */
 
/* This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License in the file COPYING for more details.
 */

 /***************************************************************************/

/*
 * Changes to version 1.2.2 were made by Martin Bayer <mbayer@zedat.fu-berlin.de>
 * Dates and reasons of modifications:
 * Thu Oct  4 21:29:40 CEST 2001: ported to g++ 3.0
 */
  
 /***************************************************************************/


#ifndef __auto_aptr_h_INCLUDED__ /* { */
#define __auto_aptr_h_INCLUDED__

/* ------------------------------------------------------------------------- */

#ident "$Id: auto_aptr.h,v 1.2 1999/07/09 09:08:40 arno Exp $"

/* ------------------------------------------------------------------------- */

/*
 * This template class is very similar to the standard "auto_ptr", but it is
 * used for *array* pointers rather than *object* pointers, i.e. the pointer
 * passed to it must have been allocated with "new[]", and "auto_aptr" will
 * delete it with "delete[]".
 */

/* ------------------------------------------------------------------------- */

#include <stdlib.h>

template <class T>
class auto_aptr {

public:

  // Constructor/copy/destroy

  auto_aptr() : p(0) {}
  auto_aptr(T *x) : p(x) {}
  auto_aptr(const auto_aptr<T> &x) : p(x.p) { ((auto_aptr<T> *) &x)->p = 0; }
  void operator=(const auto_aptr<T> &x)
  { delete[] p; p = x.p; ((auto_aptr<T> *) &x)->p = 0; }
  // Extension: "operator=(T *)" is identical to "auto_aptr::reset(T *)".
  void operator=(T *x) { delete[] p; p = x; }
  ~auto_aptr() { delete[] p; }

  // Members

  T    &operator[](size_t idx) const { if (!p) abort(); return p[idx]; }
  T    *get() const        { return (T *) p; }
  T    *release()          { T *tmp = p; p = 0; return tmp; }
  void reset(T *x = 0)     { delete[] p; p = x; }

  // These would make a nice extension, but are not provided by many other
  // implementations.
//operator const void *() const { return p; }
//int operator!() const { return p == 0; }

private:
  T *p;
};

/* ------------------------------------------------------------------------- */

#endif /* } */

/* ------------------------------------------------------------------------- */