bmig_support.hh

// boost_support.hh: this file is part of the Vaucanson project.
//
// Vaucanson, a generic library for finite state machines.
//
// Copyright (C) 2007, 2008 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_AUTOMATA_IMPLEMENTATION_BMIG_BMIG_SUPPORT_HH
# define VCSN_AUTOMATA_IMPLEMENTATION_BMIG_BMIG_SUPPORT_HH

# include <vaucanson/misc/support.hh>
# include <vaucanson/automata/implementation/bmig/initial_container.hh>
# include <boost/shared_ptr.hpp>

namespace vcsn
{
  namespace misc
  {

    template <>
    class SupportIterator<std::vector<boost::shared_ptr<std::size_t> > >
    {
      public:
        typedef boost::shared_ptr<std::size_t>              data_type;
        typedef vcsn::handler<state_h, data_type>           handler_t;
        typedef std::vector<data_type>                      container_t;
        typedef container_t::const_iterator                 vector_iterator;
        typedef SupportIterator<container_t>                self_t;

        typedef vector_iterator::iterator_category          iterator_category;
        typedef vector_iterator::difference_type            difference_type;
        typedef data_type                                   value_type;
        typedef data_type*                                  pointer;
        typedef data_type&                                  reference;

        SupportIterator () {}
        SupportIterator (const container_t* c, int i);

        handler_t operator* () const;
        self_t&  operator++ ();
        self_t&  operator-- ();
        self_t   operator++ (int);
        bool     operator!= (const SupportIterator&) const;
        bool     operator== (const SupportIterator&) const;

      private:
        int                 current_;
        std::size_t         container_size_;
        const container_t*  container_;
    };

    template <>
    class Support<std::vector<boost::shared_ptr<std::size_t> > >
    {
      public:
        typedef boost::shared_ptr<std::size_t>           value_type;
        typedef vcsn::handler<state_h, value_type>       handler_t;
        typedef SupportIterator<std::vector<value_type> > iterator;
        typedef iterator                                 const_iterator;

        Support (const std::vector<value_type>&);

        const_iterator begin () const;
        const_iterator end () const;
        unsigned size () const;

        // Find the element associated to \a k.
        iterator find (const handler_t& k) const;

        bool empty () const;

        handler_t back () const;
      private:
        const std::vector<value_type>&  m_;
    };

  }
}

namespace std
{
  template <>
    struct iterator_traits<vcsn::misc::SupportIterator<std::vector<boost::shared_ptr<std::size_t> > > >
    {
      typedef input_iterator_tag  iterator_category;
      typedef boost::shared_ptr<size_t>   value_type;
      typedef int                 difference_type;
      typedef int*                pointer;
      typedef int&                reference;
    };
} // std

namespace vcsn
{
  namespace misc
  {

    template <>
    class SupportIterator<std::set<boost::shared_ptr<std::size_t> > >
    {
      public:
        typedef boost::shared_ptr<std::size_t>              data_type;
        typedef vcsn::handler<state_h, data_type>           handler_t;
        typedef std::set<data_type>                         container_t;
        typedef container_t::const_iterator                 set_iterator;
        typedef SupportIterator<container_t>                self_t;

        typedef set_iterator::iterator_category     iterator_category;
        typedef set_iterator::difference_type       difference_type;
        typedef data_type                                   value_type;
        typedef data_type*                                  pointer;
        typedef data_type&                                  reference;

        SupportIterator () {}
        SupportIterator (const container_t* c, set_iterator it);

        handler_t operator* () const;
        self_t&  operator++ ();
        self_t&  operator-- ();
        self_t   operator++ (int);
        bool     operator!= (const SupportIterator&) const;
        bool     operator== (const SupportIterator&) const;

      private:
        set_iterator        current_;
        std::size_t         container_size_;
        const container_t*  container_;
    };

    template <>
    class Support<std::set<boost::shared_ptr<std::size_t> > >
    {
      public:
        typedef boost::shared_ptr<std::size_t>           value_type;
        typedef vcsn::handler<state_h, value_type>       handler_t;
        typedef SupportIterator<std::set<value_type> > iterator;
        typedef iterator                                 const_iterator;

        Support (const std::set<value_type>&);

        const_iterator begin () const;
        const_iterator end () const;
        unsigned size () const;

        // Find the element associated to \a k.
        iterator find (const handler_t& k) const;

        bool empty () const;

        handler_t back () const;
      private:
        const std::set<value_type>&     m_;
    };

  }
}

namespace std
{
  template <>
    struct iterator_traits<vcsn::misc::SupportIterator<std::set<boost::shared_ptr<std::size_t> > > >
    {
      typedef input_iterator_tag  iterator_category;
      typedef boost::shared_ptr<std::size_t>      value_type;
      typedef int                 difference_type;
      typedef int*                pointer;
      typedef int&                reference;
    };
} // std

namespace vcsn
{
  namespace misc
  {
    template <typename U, typename HState>
    class SupportIterator<vcsn::bmig::InitialContainer<U, HState> >
    {
      public:
        typedef typename vcsn::bmig::InitialContainer<U, HState>::Type  container_t;
        typedef typename container_t::key_type                  key_type;
        typedef typename container_t::const_iterator            container_iterator;
        typedef SupportIterator<vcsn::bmig::InitialContainer<U, HState> >       self_t;
        typedef vcsn::handler<state_h, HState>                  handler_t;
        typedef typename container_iterator::iterator_category  iterator_category;
        typedef typename container_iterator::difference_type    difference_type;
        typedef key_type                                        value_type;
        typedef key_type*                                       pointer;
        typedef key_type&                                       reference;

        SupportIterator () {}
        SupportIterator (const container_t* c, container_iterator);

        handler_t  operator* () const;
        self_t&  operator++ ();
        self_t&  operator-- ();
        self_t   operator++ (int);
        bool     operator!= (const SupportIterator&) const;
        bool     operator== (const SupportIterator&) const;


      private:
        container_iterator  i_;
        container_iterator  next_;
        const container_t*  container_;
    };


    template <typename  U, typename HState>
    class Support<vcsn::bmig::InitialContainer<U, HState> >
    {
      public:
        typedef typename vcsn::bmig::InitialContainer<U, HState>::Type container_t;
        typedef SupportIterator<vcsn::bmig::InitialContainer<U, HState> > iterator;
        typedef SupportIterator<vcsn::bmig::InitialContainer<U, HState> > const_iterator;
        typedef vcsn::handler<state_h, HState>                          handler_t;

        Support (const container_t&);
        Support (const Support&);

        iterator begin () const;
        iterator end () const;
        unsigned size () const;

        // Find the element associated to \a k.
        iterator find (const HState& k) const;

        bool empty () const;

        handler_t back () const;
      private:
        const container_t&      m_;
    };

  }
}

namespace std
{
  template <class T, class U>
  struct iterator_traits<vcsn::misc::SupportIterator<std::vector<vcsn::handler<T, U> > > >
  {
    typedef input_iterator_tag  iterator_category;
    typedef U                   value_type;
    typedef int                 difference_type;
    typedef int*                pointer;
    typedef int&                reference;
  };
} // std

# if !defined VCSN_USE_INTERFACE_ONLY || defined VCSN_USE_LIB
# include <vaucanson/automata/implementation/bmig/bmig_support.hxx>
# endif // VCSN_USE_INTERFACE_ONLY

#endif // !VCSN_AUTOMATA_IMPLEMENTATION_BMIG_BMIG_SUPPORT_HH

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