Vaucanson  1.4.1
is_useless.hh
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1 // is_useless.hh: this file is part of the Vaucanson project.
2 //
3 // Vaucanson, a generic library for finite state machines.
4 //
5 // Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2008, 2009 The Vaucanson Group.
6 //
7 // This program is free software; you can redistribute it and/or
8 // modify it under the terms of the GNU General Public License
9 // as published by the Free Software Foundation; either version 2
10 // of the License, or (at your option) any later version.
11 //
12 // The complete GNU General Public Licence Notice can be found as the
13 // `COPYING' file in the root directory.
14 //
15 // The Vaucanson Group consists of people listed in the `AUTHORS' file.
16 //
17 #ifndef VCSN_ALGORITHMS_IS_USELESS_HH
18 # define VCSN_ALGORITHMS_IS_USELESS_HH
19 
30 // INTERFACE: bool is_useless(const Automaton& a) { return vcsn::is_useless(*a); }
31 
32 # include <vaucanson/design_pattern/design_pattern.hh>
33 # include <vaucanson/automata/concept/handlers.hh>
34 
35 # include <set>
36 
37 namespace vcsn {
38 
52  template<typename A, typename AI>
53  bool
54  is_useless(const Element<A, AI>& a);
55 
58 } // vcsn
59 
60 # if !defined VCSN_USE_INTERFACE_ONLY && !defined VCSN_USE_LIB
61 # include <vaucanson/algorithms/is_useless.hxx>
62 # endif // VCSN_USE_INTERFACE_ONLY
63 
64 #endif // ! VCSN_ALGORITHMS_IS_USELESS_HH