set_alphabet.hxx

00001 // set_alphabet.hxx: 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 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_IMPLEMENTATION_ALPHABETS_SET_ALPHABET_HXX
00018 # define VCSN_ALGEBRA_IMPLEMENTATION_ALPHABETS_SET_ALPHABET_HXX
00019 
00020 # include <vaucanson/algebra/concept/letter.hh>
00021 # include <vaucanson/algebra/implementation/alphabets/set_alphabet.hh>
00022 
00023 # include <limits>
00024 
00025 namespace vcsn
00026 {
00027 
00028   /*-----------------------------------------------------------.
00029   | Definition of an alphabet implementation based on std::set |
00030   `-----------------------------------------------------------*/
00031 
00032   template <typename L>
00033   size_t
00034   op_max_size(const algebra::AlphabetSet<L>&, const std::set<L>&)
00035   {
00036     return algebra::letter_traits<L>::cardinal;
00037   }
00038 
00039   template<typename L>
00040   bool op_contains(const algebra::AlphabetSet<L>&, const std::set<L>&)
00041   {
00042     return true;
00043   }
00044 
00045   template<typename L>
00046   bool op_is_finite(const algebra::AlphabetSet<L>&, const std::set<L>&)
00047   {
00048     return true;
00049   }
00050 
00051   template<typename L>
00052   bool op_contains_e(const algebra::AlphabetSet<L>&, const std::set<L>& a,
00053                      const L& v)
00054   {
00055     return a.find(v) != a.end();
00056   }
00057 
00058 
00059 } // vcsn
00060 
00061 #endif // ! VCSN_ALGEBRA_IMPLEMENTATION_ALPHABETS_SET_ALPHABET_HXX

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