/* * ORXONOX - the hottest 3D action shooter ever to exist * > www.orxonox.net < * * * License notice: * * 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. * * Author: * Reto Grieder * Co-authors: * ... * */ #ifndef __DestructionHelper_H__ #define __DestructionHelper_H__ #include "UtilPrereqs.h" namespace orxonox { /** Deletes an object and resets the pointer @param object Pointer to an object. Handing over NULL is safe. */ template void safeObjectDelete(T** object) { delete *object; *object = NULL; } /** Utility class that helps to create a special kind of destructor that also executes if the destruction fails. This helps a lot to improve exception handling.

Example:
@code class MyClass { public: MyClass() : destructionHelper_(this) { // Do something that might throw } ~MyClass() { // Keep empty! } void destroy() { // Place your destruction code here instead } private: orxonox::DestructionHelper destructionHelper_; }; @endcode */ template class DestructionHelper { public: DestructionHelper(T* object) : object_(object) { } ~DestructionHelper() { object_->destroy(); } private: DestructionHelper(const DestructionHelper&); //!< Don't use (undefined) T* object_; }; } #endif /* __DestructionHelper_H__ */