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
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