#ifndef MPLIB1_DATA_ALIGN
#define MPLIB1_DATA_ALIGN
/*
*******************************************************************************
*  Copyright (c) 1996 Martin Poole                            *
*******************************************************************************
**
** WARNING !!  WARNING !! WARNING !! WARNING !! WARNING !! WARNING !!
**
** Any changes to be made to this file should first be checked with
** mplib1 source control for library integrity.
**
** mplib1 source control can be reached at  mplib1@quatermass.co.uk
** 
*
*  $Source: /home/cvs/cvsroot/onelan/onelan/src/mplib1/mplib1/data_align.h,v $
*  $Author: mpoole $
*  $Date: 2002/10/07 09:37:44 $
*  $Revision: 1.2 $
*
*******************************************************************************
*
* Change History
*
* $Log: data_align.h,v $
* Revision 1.2  2002/10/07 09:37:44  mpoole
* Initial checkin of mplib1-3.1.0
*
* Revision 1.1  2002/10/07 09:37:00  mpoole
* Initial checkin of mplib1-3.1.0
*
*
*******************************************************************************
*/

#ident "$Header: /home/cvs/cvsroot/onelan/onelan/src/mplib1/mplib1/data_align.h,v 1.2 2002/10/07 09:37:44 mpoole Exp $"

/* ------------------------------------------------------------------
    Include files
   ------------------------------------------------------------------ */

/* ------------------------------------------------------------------
    defines
   ------------------------------------------------------------------ */

/**
 ** Here we attempt to specify what the data alignment rules are
 ** for a particular platform.
 ** Two types of alignment are specified, compact and optimal
 ** This is provided so that the storage vs speed choice can be made
 **
 */

#ifdef EIGHT_ALIGN_EIGHT

#define MPLIB_ALIGN_SPC_CHAR	1
#define MPLIB_ALIGN_SPC_SHORT	2
#define MPLIB_ALIGN_SPC_INT	4
#define MPLIB_ALIGN_SPC_LONG	4
#define MPLIB_ALIGN_SPC_DOUBLE	8
#define MPLIB_ALIGN_SPC_VLONG	8
#define MPLIB_ALIGN_SPC_PTR	4

#define MPLIB_STRUCT_PAD	8

#define MPLIB_ALIGN_SPD_CHAR	1
#define MPLIB_ALIGN_SPD_SHORT	2
#define MPLIB_ALIGN_SPD_INT	4
#define MPLIB_ALIGN_SPD_LONG	4
#define MPLIB_ALIGN_SPD_DOUBLE	8
#define MPLIB_ALIGN_SPD_VLONG	8
#define MPLIB_ALIGN_SPD_PTR	4

#else

#define MPLIB_ALIGN_SPC_CHAR	1
#define MPLIB_ALIGN_SPC_SHORT	2
#define MPLIB_ALIGN_SPC_INT	4
#define MPLIB_ALIGN_SPC_LONG	4
#define MPLIB_ALIGN_SPC_DOUBLE	4
#define MPLIB_ALIGN_SPC_VLONG	4
#define MPLIB_ALIGN_SPC_PTR	4

#define MPLIB_STRUCT_PAD	4

#define MPLIB_ALIGN_SPD_CHAR	1
#define MPLIB_ALIGN_SPD_SHORT	2
#define MPLIB_ALIGN_SPD_INT	4
#define MPLIB_ALIGN_SPD_LONG	4
#define MPLIB_ALIGN_SPD_DOUBLE	4
#define MPLIB_ALIGN_SPD_VLONG	4
#define MPLIB_ALIGN_SPD_PTR	4

#endif

/* #define STRUCT_PAD(n)	(((n)+(MPLIB_STRUCT_PAD-1)) & ~(MPLIB_STRUCT_PAD-1)) */
#define STRUCT_PAD(n)	(((n)+(MPLIB_STRUCT_PAD-1)) & ((MPLIB_STRUCT_PAD-1) ^ 0x7ffffff))

/* ------------------------------------------------------------------
    structure
   ------------------------------------------------------------------ */

/* ------------------------------------------------------------------
    function definitions
   ------------------------------------------------------------------ */

#endif
/* -- End of File -- */