functors.hh

00001 // functors.hh: this file is part of the Vaucanson project.
00002 //
00003 // Vaucanson, a generic library for finite state machines.
00004 //
00005 // Copyright (C) 2005, 2006 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_MISC_FUNCTORS_HH
00018 # define VCSN_MISC_FUNCTORS_HH
00019 
00020 # include <functional>
00021 # include <utility>
00022 
00023 namespace vcsn
00024 {
00025   namespace misc
00026   {
00027 
00028     template <typename T>
00029     struct pair : public std::binary_function<T, T, std::pair<T, T > >
00030     {
00031         std::pair<T, T> operator () (T x, T y) const;
00032     };
00033 
00034 
00035     template <typename T>
00036     struct discrepancy : public std::binary_function<T, T, std::pair<T, T> >
00037     {
00038         std::pair<T, T> operator () (T x, T y) const;
00039     };
00040 
00041   } // End of namespace misc.
00042 } // End of namespace vcsn.
00043 
00044 
00045 # if !defined VCSN_USE_INTERFACE_ONLY || defined VCSN_USE_LIB
00046 #  include <vaucanson/misc/functors.hxx>
00047 # endif // VCSN_USE_INTERFACE_ONLY
00048 
00049 #endif // ! VCSN_MISC_FUNCTORS_HH

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