selectors.hh

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// selectors.hh: this file is part of the Vaucanson project.
//
// Vaucanson, a generic library for finite state machines.
//
// Copyright (C) 2001, 2002, 2003, 2004, 2005 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_MISC_SELECTORS_HH
# define VCSN_MISC_SELECTORS_HH

#define SELECT(T) (*(const T*)0)

#define SELECT2(T1, T2) (*(const T1 , T2 *)0)

#define SELECT3(T1, T2, T3) (*(const T1 , T2, T3 *)0)

#define SELECT4(T1, T2, T3, T4) (*(const T1 , T2, T3, T4 *)0)

#define SELECTOR(T) const T &

#define SELECTOR2(T1, T2) const T1 , T2 &

#define SELECTOR3(T1, T2, T3) const T1 , T2, T3 &

#define SELECTOR4(T1, T2, T3, T4) const T1 , T2, T3, T4 &

#endif // ! VCSN_MISC_SELECTORS_HH

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