00001 /**************************************************************************** 00002 Copyright (C)1996 David Jung <opensim@pobox.com> 00003 00004 This program/file is free software; you can redistribute it and/or modify 00005 it under the terms of the GNU General Public License as published by 00006 the Free Software Foundation; either version 2 of the License, or 00007 (at your option) any later version. 00008 00009 This program is distributed in the hope that it will be useful, 00010 but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00012 GNU General Public License for more details. (http://www.gnu.org) 00013 00014 You should have received a copy of the GNU General Public License 00015 along with this program; if not, write to the Free Software 00016 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00017 00018 $Id: Cloneable 1029 2004-02-11 20:45:54Z jungd $ 00019 $Revision: 1.2 $ 00020 $Date: 2004-02-11 15:45:54 -0500 (Wed, 11 Feb 2004) $ 00021 $Author: jungd $ 00022 00023 ****************************************************************************/ 00024 00025 #ifndef _BASE_CLONABLE_ 00026 #define _BASE_CLONABLE_ 00027 00028 00029 namespace base { 00030 00031 class Object; 00032 00033 00034 class Cloneable 00035 { 00036 public: 00037 /** return a shallow copy, with Object& return type. 00038 Must be defined by derived classes.*/ 00039 virtual Object& clone() const = 0; 00040 00041 }; 00042 00043 00044 } // base 00045 00046 #endif