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/*
* 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>
*
* 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.
*/
#ifndef __auto_aptr_h_INCLUDED__ /* { */
#define __auto_aptr_h_INCLUDED__
/*
* 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 /* } */
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