weakptr.h
/* weakptr.h - An object which supports weak pointers.
*
* Copyright (C) 2010 Software Freedom Conservancy
*
* 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
#ifndef WEAK_POINTER_H
#define WEAK_POINTER_H
#include <cstddef>
#include <set>
class WeakPointable {
private:
std::set<WeakPointable**> pointers;
public:
inline void AddWeakPointer(WeakPointable** weakptr) {
pointers.insert(weakptr);
}
inline void RemoveWeakPointer(WeakPointable **weakptr) {
pointers.erase(weakptr);
}
~WeakPointable() {
for (auto pointer : pointers)
*pointer = nullptr;
}
};
#endif // WEAK_POINTER_H
WeakPointable
Definition weakptr.h:34
WeakPointable::AddWeakPointer
void AddWeakPointer(WeakPointable **weakptr)
Definition weakptr.h:43
WeakPointable::RemoveWeakPointer
void RemoveWeakPointer(WeakPointable **weakptr)
Definition weakptr.h:50
WeakPointable::~WeakPointable
~WeakPointable()
Definition weakptr.h:57