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/*
* This file is part of libcxxsupport.
*
* libcxxsupport 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.
*
* libcxxsupport 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with libcxxsupport; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
* libcxxsupport is being developed at the Max-Planck-Institut fuer Astrophysik
* and financially supported by the Deutsches Zentrum fuer Luft- und Raumfahrt
* (DLR).
*/
/*! \file safe_ptr.h
* Pointer wrapper for better exception safety and leakage prevention
*
* Copyright (C) 2005-2015 Max-Planck-Society
* \author Martin Reinecke
*/
#ifndef PLANCK_SAFE_PTR_H
#define PLANCK_SAFE_PTR_H
#if (__cplusplus>=201103L)
#include <memory>
template<typename T> using safe_ptr = std::unique_ptr<T>;
#else
#include "error_handling.h"
template <typename T> class safe_ptr
{
private:
T *p;
bool set;
// forbid copying of safe_ptrs, at least until we know how to do it
safe_ptr (const safe_ptr &) {}
safe_ptr &operator= (const safe_ptr &) { return *this; }
public:
safe_ptr() : p(0), set(false) {}
safe_ptr (T *p2) : p(p2), set(true) {}
~safe_ptr() { delete p; }
void reset (T *p2)
{
planck_assert (!set, "safe_ptr: already set");
set = true;
p=p2;
}
void reset()
{
delete p;
p=0;
set=false;
}
T * get() const
{ return p; }
operator T*() { return p; }
operator const T*() const { return p; }
T *operator->() { return p; }
const T *operator->() const { return p; }
};
#endif
#endif
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