copy.hxx

00001 // copy.hxx: this file is part of the Vaucanson project.
00002 //
00003 // Vaucanson, a generic library for finite state machines.
00004 //
00005 // Copyright (C) 2001, 2002, 2003, 2004 The Vaucanson Group.
00006 //
00007 // This program is free software; you can redistribute it and/or
00008 // modify it under the terms of the GNU General Public License
00009 // as published by the Free Software Foundation; either version 2
00010 // of the License, or (at your option) any later version.
00011 //
00012 // The complete GNU General Public Licence Notice can be found as the
00013 // `COPYING' file in the root directory.
00014 //
00015 // The Vaucanson Group consists of people listed in the `AUTHORS' file.
00016 //
00017 #ifndef VCSN_AUTOMATA_CONCEPT_COPY_HXX
00018 # define VCSN_AUTOMATA_CONCEPT_COPY_HXX
00019 
00020 #include <vaucanson/automata/concept/handlers.hh>
00021 #include <map>
00022 
00023 
00024 namespace vcsn
00025 {
00026 
00027   template<typename lhs_t, typename rhs_t>
00028   void auto_copy(lhs_t& dst_,
00029                  const rhs_t& from)
00030   {
00031     lhs_t dst(dst_.structure());
00032     typedef typename lhs_t::series_set_elt_t dst_series_set_elt_t;
00033 
00034     std::map<hstate_t, hstate_t> stmap;
00035 
00036     for (typename rhs_t::state_iterator i = from.states().begin();
00037          i != from.states().end();
00038          ++i)
00039     {
00040       hstate_t s = dst.add_state();
00041       dst_series_set_elt_t s_(from.get_final(*i));
00042       dst.set_final(s, s_);
00043       dst_series_set_elt_t s__(from.get_initial(*i));
00044       dst.set_initial(s, s__);
00045       stmap[*i] = s;
00046     }
00047 
00048     for (typename rhs_t::transition_iterator i = from.transitions().begin();
00049          i != from.transitions().end();
00050          ++i)
00051     {
00052       dst_series_set_elt_t s(from.series_of(*i));
00053       dst.add_series_transition(stmap[from.src_of(*i)], stmap[from.dst_of(*i)], s);
00054     }
00055     dst_.swap(dst);
00056   }
00057 
00058   template<typename auto_t>
00059   auto_t auto_copy(const auto_t& from)
00060   {
00061     auto_t dst;
00062     auto_copy(dst, from);
00063     return dst;
00064   }
00065 
00066 }
00067 
00068 
00069 #endif // ! VCSN_AUTOMATA_CONCEPT_COPY_HXX

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