|
Packit |
8f70b4 |
/*
|
|
Packit |
8f70b4 |
* lftp - file transfer program
|
|
Packit |
8f70b4 |
*
|
|
Packit |
8f70b4 |
* Copyright (c) 1996-2012 by Alexander V. Lukyanov (lav@yars.free.net)
|
|
Packit |
8f70b4 |
*
|
|
Packit |
8f70b4 |
* This program is free software; you can redistribute it and/or modify
|
|
Packit |
8f70b4 |
* it under the terms of the GNU General Public License as published by
|
|
Packit |
8f70b4 |
* the Free Software Foundation; either version 3 of the License, or
|
|
Packit |
8f70b4 |
* (at your option) any later version.
|
|
Packit |
8f70b4 |
*
|
|
Packit |
8f70b4 |
* This program is distributed in the hope that it will be useful,
|
|
Packit |
8f70b4 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
Packit |
8f70b4 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
Packit |
8f70b4 |
* GNU General Public License for more details.
|
|
Packit |
8f70b4 |
*
|
|
Packit |
8f70b4 |
* You should have received a copy of the GNU General Public License
|
|
Packit |
8f70b4 |
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
Packit |
8f70b4 |
*/
|
|
Packit |
8f70b4 |
|
|
Packit |
8f70b4 |
#ifndef REF_H
|
|
Packit |
8f70b4 |
#define REF_H
|
|
Packit |
8f70b4 |
|
|
Packit |
8f70b4 |
template<typename T> class Ref
|
|
Packit |
8f70b4 |
{
|
|
Packit |
8f70b4 |
Ref<T>(const Ref<T>&); // disable cloning
|
|
Packit |
8f70b4 |
void operator=(const Ref<T>&); // and assignment
|
|
Packit |
8f70b4 |
|
|
Packit |
8f70b4 |
protected:
|
|
Packit |
8f70b4 |
T *ptr;
|
|
Packit |
8f70b4 |
|
|
Packit |
8f70b4 |
public:
|
|
Packit |
8f70b4 |
Ref<T>() { ptr=0; }
|
|
Packit |
8f70b4 |
Ref<T>(T *p) { ptr=p; }
|
|
Packit |
8f70b4 |
~Ref<T>() { delete ptr; }
|
|
Packit |
8f70b4 |
void operator=(T *p) { delete ptr; ptr=p; }
|
|
Packit |
8f70b4 |
operator const T*() const { return ptr; }
|
|
Packit |
8f70b4 |
T *operator->() const { return ptr; }
|
|
Packit |
8f70b4 |
T *borrow() { return replace_value(ptr,(T*)0); }
|
|
Packit |
8f70b4 |
const T *get() const { return ptr; }
|
|
Packit |
8f70b4 |
T *get_non_const() const { return ptr; }
|
|
Packit |
8f70b4 |
|
|
Packit |
8f70b4 |
template<class C> const Ref<C>& Cast() const
|
|
Packit |
8f70b4 |
{ void(static_cast<C*>(ptr)); return *(const Ref<C>*)this; }
|
|
Packit |
8f70b4 |
|
|
Packit |
8f70b4 |
static const Ref<T> null;
|
|
Packit |
8f70b4 |
|
|
Packit |
8f70b4 |
void _set(T *p) { ptr=p; }
|
|
Packit |
8f70b4 |
void _clear() { ptr=0; }
|
|
Packit |
8f70b4 |
void unset() { *this=0; }
|
|
Packit |
8f70b4 |
};
|
|
Packit |
8f70b4 |
|
|
Packit |
8f70b4 |
template<typename T> const Ref<T> Ref<T>::null;
|
|
Packit |
8f70b4 |
|
|
Packit |
8f70b4 |
template<typename T> class RefToArray : public Ref<T>
|
|
Packit |
8f70b4 |
{
|
|
Packit |
8f70b4 |
RefToArray<T>(const RefToArray<T>&); // disable cloning
|
|
Packit |
8f70b4 |
void operator=(const RefToArray<T>&); // and assignment
|
|
Packit |
8f70b4 |
|
|
Packit |
8f70b4 |
public:
|
|
Packit |
8f70b4 |
RefToArray<T>() {}
|
|
Packit |
8f70b4 |
RefToArray<T>(T *p) : Ref<T>(p) {}
|
|
Packit |
8f70b4 |
~RefToArray<T>() { delete[] Ref<T>::ptr; Ref<T>::ptr=0; }
|
|
Packit |
8f70b4 |
void operator=(T *p) { delete[] Ref<T>::ptr; Ref<T>::ptr=p; }
|
|
Packit |
8f70b4 |
T& operator[](unsigned i) const { return Ref<T>::ptr[i]; }
|
|
Packit |
8f70b4 |
|
|
Packit |
8f70b4 |
static const RefToArray<T> null;
|
|
Packit |
8f70b4 |
};
|
|
Packit |
8f70b4 |
|
|
Packit |
8f70b4 |
template<typename T> const RefToArray<T> RefToArray<T>::null;
|
|
Packit |
8f70b4 |
|
|
Packit |
8f70b4 |
|
|
Packit |
8f70b4 |
#endif
|