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# semigroup_base.hh

    00001 // semigroup_base.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_ALGEBRA_CONCEPT_SEMIGROUP_BASE_HH
    00018 # define VCSN_ALGEBRA_CONCEPT_SEMIGROUP_BASE_HH
    00019
    00020 # include <vaucanson/design_pattern/design_pattern.hh>
    00021
    00022 namespace vcsn {
    00023
    00024   namespace algebra {
    00025
    00029
    00030
    00031     struct mul_kind
    00032     {};
    00033
    00036     struct add_kind
    00037     {};
    00038
    00044     template<class Self>
    00045     struct SemigroupBase : Structure<Self>
    00046     {
    00047     protected:
    00049       SemigroupBase();
    00050
    00052       SemigroupBase(const SemigroupBase& other);
    00053     };
    00054
    00058   } // algebra
    00059
    00063   /*-------------------------------------.
    00064   | dynamic_traits<SemigroupBase<Self> > |
    00065   `-------------------------------------*/
    00066
    00067   template<class Self>
    00068   struct dynamic_traits<algebra::SemigroupBase<Self> >
    00069     : dynamic_traits<Structure<Self> >
    00070   { };
    00071
    00072   template<typename S>
    00073   struct virtual_types<algebra::SemigroupBase<S> >
    00074     : virtual_types<Structure<S> >
    00075   {
    00076     typedef undefined_type semigroup_kind;
    00077   };
    00078
    00079
    00080   /*-----------------------------------.
    00081   | MetaElement<SemigroupBase<Self>,T> |
    00082   `-----------------------------------*/
    00083
    00085   template<class Self, typename T>
    00086   struct MetaElement<algebra::SemigroupBase<Self>, T>
    00087     : MetaElement<Structure<Self>, T>
    00088   {
    00089   protected:
    00091     MetaElement();
    00092
    00094     MetaElement(const MetaElement& other);
    00095   };
    00096
    00100 } // vcsn
    00101
    00102 # if !defined VCSN_USE_INTERFACE_ONLY || defined VCSN_USE_LIB
    00103 #  include <vaucanson/algebra/concept/semigroup_base.hxx>
    00104 # endif // VCSN_USE_INTERFACE_ONLY
    00105
    00106 #endif // ! VCSN_ALGEBRA_CONCEPT_SEMIGROUP_BASE_HH