paradiseo/trunk/paradiseo-mo/examples/tsp/share/route_init.cpp

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1.4 KiB
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Executable file

// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
// "route_init.cpp"
// (c) OPAC Team, LIFL, 2003
/* This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Contact: cahon@lifl.fr
*/
#include <utils/eoRNG.h>
#include "route_init.h"
#include "graph.h"
void RouteInit :: operator () (Route & __route) {
// Init.
__route.clear () ;
for (unsigned i = 0 ; i < Graph :: size () ; i ++)
__route.push_back (i) ;
// Swap. cities
for (unsigned i = 0 ; i < Graph :: size () ; i ++) {
//unsigned j = rng.random (Graph :: size ()) ;
unsigned j = (unsigned) (Graph :: size () * (rand () / (RAND_MAX + 1.0))) ;
unsigned city = __route [i] ;
__route [i] = __route [j] ;
__route [j] = city ;
}
}