set_alphabet.hxx

// set_alphabet.hxx: this file is part of the Vaucanson project.
//
// Vaucanson, a generic library for finite state machines.
//
// Copyright (C) 2001, 2002, 2003, 2004 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_ALGEBRA_IMPLEMENTATION_ALPHABETS_SET_ALPHABET_HXX
# define VCSN_ALGEBRA_IMPLEMENTATION_ALPHABETS_SET_ALPHABET_HXX

# include <vaucanson/algebra/concept/letter.hh>
# include <vaucanson/algebra/implementation/alphabets/set_alphabet.hh>

# include <limits>

namespace vcsn
{

  /*-----------------------------------------------------------.
  | Definition of an alphabet implementation based on std::set |
  `-----------------------------------------------------------*/

  template <typename L>
  size_t
  op_max_size(const algebra::AlphabetSet<L>&, const std::set<L>&)
  {
    return algebra::letter_traits<L>::cardinal;
  }

  template<typename L>
  bool op_contains(const algebra::AlphabetSet<L>&, const std::set<L>&)
  {
    return true;
  }

  template<typename L>
  bool op_is_finite(const algebra::AlphabetSet<L>&, const std::set<L>&)
  {
    return true;
  }

  template<typename L>
  bool op_contains_e(const algebra::AlphabetSet<L>&, const std::set<L>& a,
                     const L& v)
  {
    return a.find(v) != a.end();
  }


} // vcsn

#endif // ! VCSN_ALGEBRA_IMPLEMENTATION_ALPHABETS_SET_ALPHABET_HXX

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