transpose.hxx

00001 // transpose.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, 2005, 2006 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_ALGORITHMS_TRANSPOSE_HXX
00018 # define VCSN_ALGORITHMS_TRANSPOSE_HXX
00019 
00020 #include <vaucanson/algorithms/transpose.hh>
00021 #include <vaucanson/automata/implementation/transpose_view.hh>
00022 #include <vaucanson/automata/concept/copy.hh>
00023 
00024 namespace vcsn
00025 {
00026   template<typename lhs_t, typename rhs_t>
00027   void transpose(lhs_t& dst_, const rhs_t& from)
00028   {
00029     TIMER_SCOPED("transpose");
00030     AUTOMATON_TYPES(lhs_t);
00031     auto_copy(dst_, transpose_view(from));
00032     // transpose_view is still a quick transposition without label transpose.
00033     // transpose now inverts all transitions of the dst_ automaton.
00034     for_all_transitions(e, dst_)
00035       dst_.series_of(*e).transpose();
00036   }
00037 
00038   template<typename auto_t>
00039   auto_t transpose(const auto_t& from)
00040   {
00041     auto_t dst(from.structure());
00042     transpose(dst, from);
00043     return dst;
00044   }
00045 
00046 } //vcsn
00047 
00048 #endif // ! VCSN_ALGORITHMS_TRANSPOSE_HXX

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