/* * $Id$ */ /* * Harbour Project source code: * Testing the operators-overloading feature * * Copyright 2000 Antonio Linares * www - http://www.harbour-project.org * * 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, with one exception: * * The exception is that if you link the Harbour Runtime Library (HRL) * and/or the Harbour Virtual Machine (HVM) with other files to produce * an executable, this does not by itself cause the resulting executable * to be covered by the GNU General Public License. Your use of that * executable is in no way restricted on account of linking the HRL * and/or HVM code into it. * * 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., 675 Mass Ave, Cambridge, MA 02139, USA (or visit * their web site at http://www.gnu.org/). * */ #include "hbclass.ch" // Right now you can overload operators with Harbour // as C++ does!!! Not all operators are available. ASAP we will provide all // of them. //----------------------------------------------------------------------------// function Main() local oCar := TCar():New( "red", 2 ) local oPetrol oCar = oCar + oPetrol return nil //----------------------------------------------------------------------------// CLASS TCar DATA cColor DATA nDoors DATA oGas METHOD New( cColor, nDoors ) CONSTRUCTOR METHOD Sum( oObject ) OPERATOR '+' ENDCLASS //----------------------------------------------------------------------------// METHOD New( cColor, nDoors ) CLASS TCar if cColor == nil cColor = "White" endif if nDoors == nil nDoors = 4 endif ::cColor = cColor ::nDoors = nDoors return Self //----------------------------------------------------------------------------// METHOD Sum( oObject ) CLASS TCar Alert( "+ has a special meaning and " + ; "functionality for TCar Class objects!!!" ) return nil //----------------------------------------------------------------------------//