ParadisEO: city_swap.cpp Source File

00001 // -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
00002 
00003 // "city_swap.cpp"
00004 
00005 // (c) OPAC Team, LIFL, 2002
00006 
00007 /* This library is free software; you can redistribute it and/or
00008    modify it under the terms of the GNU Lesser General Public
00009    License as published by the Free Software Foundation; either
00010    version 2 of the License, or (at your option) any later version.
00011    
00012    This library is distributed in the hope that it will be useful,
00013    but WITHOUT ANY WARRANTY; without even the implied warranty of
00014    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00015    Lesser General Public License for more details.
00016    
00017    You should have received a copy of the GNU Lesser General Public
00018    License along with this library; if not, write to the Free Software
00019    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
00020    
00021    Contact: cahon@lifl.fr
00022 */
00023 
00024 #include <utils/eoRNG.h>
00025 
00026 #include "city_swap.h"
00027 
00028 bool CitySwap :: operator () (Route & __route) {
00029   
00030   std :: swap (__route [rng.random (__route.size ())],
00031                __route [rng.random (__route.size ())]) ;
00032     
00033   __route.invalidate () ;
00034   
00035   return true ;
00036 }