git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@88 331e1502-861f-0410-8da2-ba01fb791d7f

trunk/paradiseo-mo/tutorial/examples/tsp/src/two_opt.cpp

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+// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
+
+// "two_opt.cpp"
+
+// (c) OPAC Team, LIFL, 2003-2006
+
+/* LICENCE TEXT
+   
+   Contact: paradiseo-help@lists.gforge.inria.fr
+*/
+
+#include "two_opt.h"
+
+TwoOpt TwoOpt :: operator ! () const {
+  
+  TwoOpt move = * this ;
+  std :: swap (move.first, move.second) ;
+  
+  return move ;
+}
+
+void TwoOpt :: operator () (Route & __route) {
+  
+  std :: vector <unsigned> seq_cities ;
+  
+  for (unsigned i = second ; i > first ; i --)
+    seq_cities.push_back (__route [i]) ;
+  
+  unsigned j = 0 ;
+  for (unsigned i = first + 1 ; i < second + 1 ; i ++)
+    __route [i] = seq_cities [j ++] ;
+}
+
+void TwoOpt :: readFrom (std :: istream & __is) {
+  
+  __is >> first >> second ;
+}
+
+void TwoOpt :: printOn (std :: ostream & __os) const {
+  
+  __os << first << ' ' << second ;
+}