selectors.hh

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00001 // selectors.hh: 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, 2005 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_SELECTORS_HH
00018 # define VCSN_MISC_SELECTORS_HH
00019 
00028 #define SELECT(T) (*(const T*)0)
00029 
00030 #define SELECT2(T1, T2) (*(const T1 , T2 *)0)
00031 
00032 #define SELECT3(T1, T2, T3) (*(const T1 , T2, T3 *)0)
00033 
00034 #define SELECT4(T1, T2, T3, T4) (*(const T1 , T2, T3, T4 *)0)
00035 
00037 #define SELECTOR(T) const T &
00038 
00039 #define SELECTOR2(T1, T2) const T1 , T2 &
00040 
00041 #define SELECTOR3(T1, T2, T3) const T1 , T2, T3 &
00042 
00043 #define SELECTOR4(T1, T2, T3, T4) const T1 , T2, T3, T4 &
00044 
00047 #endif // ! VCSN_MISC_SELECTORS_HH

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