SPACE.H

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/*
** (c) 1996-2000 The Regents of the University of California (through
** E.O. Lawrence Berkeley National Laboratory), subject to approval by
** the U.S. Department of Energy.  Your use of this software is under
** license -- the license agreement is attached and included in the
** directory as license.txt or you may contact Berkeley Lab's Technology
** Transfer Department at TTD@lbl.gov.  NOTICE OF U.S. GOVERNMENT RIGHTS.
** The Software was developed under funding from the U.S. Government
** which consequently retains certain rights as follows: the
** U.S. Government has been granted for itself and others acting on its
** behalf a paid-up, nonexclusive, irrevocable, worldwide license in the
** Software to reproduce, prepare derivative works, and perform publicly
** and display publicly.  Beginning five (5) years after the date
** permission to assert copyright is obtained from the U.S. Department of
** Energy, and subject to any subsequent five (5) year renewals, the
** U.S. Government is granted for itself and others acting on its behalf
** a paid-up, nonexclusive, irrevocable, worldwide license in the
** Software to reproduce, prepare derivative works, distribute copies to
** the public, perform publicly and display publicly, and to permit
** others to do so.
*/

#ifndef BL_SPACE_H
#define BL_SPACE_H

/*
** $Id: SPACE.H,v 1.10 2001/08/09 22:41:59 marc Exp $
*/

#if defined(BL_SPACEDIM) && !defined(SPACEDIM)
#define SPACEDIM BL_SPACEDIM
#elif defined(SPACEDIM) && !defined(BL_SPACEDIM)

#define BL_SPACEDIM SPACEDIM
#elif defined(BL_SPACEDIM) && defined(SPACEDIM)
#elif BL_SPACEDIM != SPACEDIM
#error SPACEDIM and BL_SPACEDIM must be identically defined
#else
#error At least one of BL_SPACEDIM or SPACEDIM must be defined
#endif

#if  (BL_SPACEDIM != 1 && BL_SPACEDIM !=2 && BL_SPACEDIM != 3)
#error BL_SPACEDIM must be either 1, 2, or 3
#endif

#if !defined(BL_LANG_FORT) || defined(BL_LANG_CC)


namespace BoxLib
{
    const int SpaceDim = BL_SPACEDIM;
}
#endif

#if BL_SPACEDIM==1

#  define D_EXPR(a,b,c) ((void)((a),0))

#  define D_DECL(a,b,c) a

#  define D_TERM(a,b,c) a

#  define D_PICK(a,b,c) a
#elif BL_SPACEDIM==2
#  define D_EXPR(a,b,c) ((void)((a),(b),0))
#  define D_DECL(a,b,c) a,b
#  define D_TERM(a,b,c) a b
#  define D_PICK(a,b,c) b
#elif BL_SPACEDIM==3
#  define D_EXPR(a,b,c) ((void)((a),(b),(c),0))
#  define D_DECL(a,b,c) a,b,c
#  define D_TERM(a,b,c) a b c
#  define D_PICK(a,b,c) c
#endif

#endif /*BL_SPACE_H*/

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