2 // Copyright (C) 2006 Matthias Braun <matze@braunis.de>
4 // This program is free software: you can redistribute it and/or modify
5 // it under the terms of the GNU General Public License as published by
6 // the Free Software Foundation, either version 3 of the License, or
7 // (at your option) any later version.
9 // This program is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
14 // You should have received a copy of the GNU General Public License
15 // along with this program. If not, see <http://www.gnu.org/licenses/>.
17 #ifndef HEADER_SUPERTUX_UTIL_REF_HPP
18 #define HEADER_SUPERTUX_UTIL_REF_HPP
20 /** This class behaves like a pointer to a refcounted object, but increments the
21 * reference count when new objects are assigned and decrements the refcounter
22 * when its lifetime has expired. (similar to std::auto_ptr)
34 Ref(const Ref<T>& other)
35 : object(other.object)
46 Ref<T>& operator= (const Ref<T>& other)
52 Ref<T>& operator= (T* object)
57 this->object->unref();
58 this->object = object;
63 T* operator ->() const
73 operator const T* () const