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# 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