/* Define constants and variables for communication with the parser.
   Copyright (C) 1987, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
   2000 Free Software Foundation, Inc.
   Hacked by Michael Tiemann (tiemann@cygnus.com)
   and by Brendan Kehoe (brendan@cygnus.com).

   This file is part of GCC.

   GCC 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, or (at your option)
   any later version.

   GCC is distributed in the hope that it will be useful, but
   WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with GCC; see the file COPYING.  If not, write to the Free
   Software Foundation, 59 Temple Place - Suite 330, Boston, MA
   02111-1307, USA.  */


#ifndef GCC_CP_LEX_H
#define GCC_CP_LEX_H

#if 0
/* Formerly, the RID_* values used as mask bits did not fit into a
   single 32-bit word.  Now they do, but let's preserve the old logic
   in case they ever stop fitting again.  -zw, 8 Aug 2000 */

/* The type that can represent all values of RIDBIT.  */
/* We assume that we can stick in at least 32 bits into this.  */
typedef struct { unsigned long idata[2]; }
     RID_BIT_TYPE;

/* Be careful, all these modify N twice.  */
#define RIDBIT_SETP(N, V) (((unsigned long)1 << (int) ((N)%32))		      \
			    & (V).idata[(N)/32])
#define RIDBIT_NOTSETP(NN, VV) (! RIDBIT_SETP (NN, VV))
#define RIDBIT_SET(N, V) do {						      \
				(V).idata[(N)/32]			      \
				  |= ((unsigned long)1 << (int) ((N)%32));    \
			      } while (0)
#define RIDBIT_RESET(N, V) do {						      \
				  (V).idata[(N)/32]			      \
				    &= ~((unsigned long)1 << (int) ((N)%32)); \
				} while (0)
#define RIDBIT_RESET_ALL(V) do {					      \
				   (V).idata[0] = 0;     		      \
				   (V).idata[1] = 0;			      \
				 } while (0)
#define RIDBIT_ANY_SET(V) ((V).idata[0] || (V).idata[1])
#else
typedef unsigned long RID_BIT_TYPE;	/* assumed at least 32 bits */
#define RIDBIT_OF(R) ((unsigned long)1 << (int) (R))

#define RIDBIT_SETP(N, V) ((V) & RIDBIT_OF (N))
#define RIDBIT_NOTSETP(N, V) (! ((V) & RIDBIT_OF (N)))
#define RIDBIT_ANY_SET(V) (V)

#define RIDBIT_SET(N, V) do { (V) |= RIDBIT_OF (N); } while (0)
#define RIDBIT_RESET(N, V) do { (V) &= ~RIDBIT_OF (N); } while (0)
#define RIDBIT_RESET_ALL(V) do { (V) = 0; } while (0)
#endif

#endif /* ! GCC_CP_LEX_H */