Vaucanson 1.4
krat_exp_constant_term.hh
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00001 // krat_exp_constant_term.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, 2008 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_KRAT_EXP_CONSTANT_TERM_HH
00018 # define VCSN_ALGORITHMS_KRAT_EXP_CONSTANT_TERM_HH
00019 
00030 // INTERFACE: std::pair<Exp::semiring_elt_t, bool> constant_term(const Exp& e) { return vcsn::constant_term(e); }
00031 
00032 # include <vaucanson/design_pattern/design_pattern.hh>
00033 # include <utility>
00034 
00035 namespace vcsn {
00036 
00039 
00040   template <class Series, class T>
00041   std::pair<typename Element<Series, T>::semiring_elt_t, bool>
00042   constant_term(const Element<Series, T>& exp);
00043 
00046 } // vcsn
00047 
00048 # if !defined VCSN_USE_INTERFACE_ONLY && !defined VCSN_USE_LIB
00049 #  include <vaucanson/algorithms/krat_exp_constant_term.hxx>
00050 # endif // VCSN_USE_INTERFACE_ONLY
00051 
00052 #endif // ! VCSN_ALGORITHMS_KRAT_EXP_CONSTANT_TERM_HH