structure.hh

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// structure.hh: this file is part of the Vaucanson project.
//
// Vaucanson, a generic library for finite state machines.
//
// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 The Vaucanson Group.
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// The complete GNU General Public Licence Notice can be found as the
// `COPYING' file in the root directory.
//
// The Vaucanson Group consists of people listed in the `AUTHORS' file.
//
#ifndef VCSN_DESIGN_PATTERN_STRUCTURE_HH
# define VCSN_DESIGN_PATTERN_STRUCTURE_HH

# include <vaucanson/misc/selectors.hh>
# include <vaucanson/design_pattern/predecls.hh>
# include <vaucanson/misc/unique.hh>

namespace vcsn {

  /*-------------.
  | Structure<S> |
  `-------------*/

  template<typename S>
  struct Structure : misc::unique::unifiable
  {
    template<typename T>
    bool  contains(const Element<S, T>& elt) const;

    template<typename OtherS, typename T>
    bool  contains(const Element<OtherS, T>& other) const;

    template<typename T>
    bool  contains(const T& elt_value) const;

    template <class T>
    Element<S, T>
    choose(SELECTOR(T)) const;


    typedef S           self_t;


    self_t&        self();
    const self_t&  self() const;

  protected:


    Structure();
    Structure(const Structure& other);
  };

  /*--------------------.
  | default comparisons |
  `--------------------*/

  template<typename S>
  bool operator != (const vcsn::Structure<S>& a,
                    const vcsn::Structure<S>& b);
  /*------------------------------.
  | dynamic_traits<Structure<S> > |
  `------------------------------*/

  template<typename S>
  struct dynamic_traits<Structure<S> >
  {
    static const bool ret = false;
  };

  /*-----------------------------.
  | virtual_types<Structure<S> > |
  `-----------------------------*/

  template<typename S>
  struct virtual_types<Structure<S> >
  { };

} // vcsn

# if !defined VCSN_USE_INTERFACE_ONLY || defined VCSN_USE_LIB
#  include <vaucanson/design_pattern/structure.hxx>
# endif // VCSN_USE_INTERFACE_ONLY

#endif // ! VCSN_DESIGN_PATTERN_STRUCTURE_HH

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