Vaucanson: projection.hh Source File

00001 // projection.hh: 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_PROJECTION_HH
00018 # define VCSN_ALGORITHMS_PROJECTION_HH
00019 
00030 # include <vaucanson/automata/concept/transducer.hh>
00031 
00032 namespace vcsn {
00033 
00036   template <typename auto_t, typename trans_t>
00037   void
00038   set_states(const trans_t&, auto_t&,
00039              std::map<hstate_t, hstate_t>&);
00040 
00041   /*---------.
00042   | Identity |
00043   `---------*/
00044 
00045   // Build an automaton that realizes identity relation
00046   // x -> (x,x)
00047   template <typename S, typename S2, typename T, typename T2>
00048   void
00049   identity(const Element<S,T>& aut, Element<S2, T2>& res);
00050 
00051   template <typename S, typename S2, typename T, typename T2>
00052   Element<S2, T2>
00053   identity(const Element<S,T>& aut);
00054 
00056 }
00057 
00058 # include <vaucanson/algorithms/image.hh>
00059 # include <vaucanson/algorithms/domain.hh>
00060 
00061 # if !defined VCSN_USE_INTERFACE_ONLY && !defined VCSN_USE_LIB
00062 #  include <vaucanson/algorithms/projection.hxx>
00063 # endif // VCSN_USE_INTERFACE_ONLY
00064 
00065 #endif // ! VCSN_ALGORITHMS_PROJECTION_HH