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/*
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Crown Copyright (c) 1996
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This TenDRA(r) Computer Program is subject to Copyright
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owned by the United Kingdom Secretary of State for Defence
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acting through the Defence Evaluation and Research Agency
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(DERA). It is made available to Recipients with a
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royalty-free licence for its use, reproduction, transfer
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to other parties and amendment for any purpose not excluding
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product development provided that any such use et cetera
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shall be deemed to be acceptance of the following conditions:-
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(1) Its Recipients shall ensure that this Notice is
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reproduced upon any copies or amended versions of it;
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(2) Any amended version of it shall be clearly marked to
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show both the nature of and the organisation responsible
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for the relevant amendment or amendments;
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(3) Its onward transfer from a recipient to another
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party shall be deemed to be that party's acceptance of
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these conditions;
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(4) DERA gives no warranty or assurance as to its
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quality or suitability for any purpose and DERA accepts
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no liability whatsoever in relation to any use to which
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it may be put.
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*/
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/*
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VERSION INFORMATION
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===================
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--------------------------------------------------------------------------
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$Header: /u/g/release/CVSROOT/Source/src/installers/680x0/common/exptypes.h,v 1.1.1.1 1998/01/17 15:55:49 release Exp $
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--------------------------------------------------------------------------
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$Log: exptypes.h,v $
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* Revision 1.1.1.1 1998/01/17 15:55:49 release
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* First version to be checked into rolling release.
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*
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Revision 1.1.1.1 1997/10/13 12:42:52 ma
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First version.
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Revision 1.2 1997/09/25 06:45:03 ma
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All general_proc tests passed
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Revision 1.1.1.1 1997/03/14 07:50:12 ma
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Imported from DRA
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* Revision 1.2 1996/09/20 13:51:30 john
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* *** empty log message ***
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*
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* Revision 1.1.1.1 1996/09/20 10:56:53 john
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*
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* Revision 1.1.1.1 1996/03/26 15:45:11 john
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*
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* Revision 1.3 93/11/19 16:20:53 16:20:53 ra (Robert Andrews)
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* Added unsigned integral field to exp union.
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*
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* Revision 1.2 93/04/19 13:33:30 13:33:30 ra (Robert Andrews)
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* Added extra field to expno to allow for new representation of alignments.
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*
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* Revision 1.1 93/02/22 17:15:39 17:15:39 ra (Robert Andrews)
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* Initial revision
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*
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--------------------------------------------------------------------------
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*/
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#ifndef EXPTYPES_INCLUDED
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#define EXPTYPES_INCLUDED
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/*
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STRUCTURE REPRESENTING EXPRESSION PROPERTIES
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This is basically a bitfield, with different bits representing
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different properties. See expmacs.h for details.
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*/
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typedef unsigned short prop ;
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/*
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UNION REPRESENTING A EXPRESSION CONSTITUENT
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An expression constituent can be another expression, a string, a
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numerical value, a floating-point value or an external declaration.
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*/
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typedef union {
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#ifndef tdf3
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long l ;
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unsigned long ui ;
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#else
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int l ;
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unsigned int ui ;
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#endif
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float fp ;
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char *str ;
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struct exp_t *expr ;
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struct dec_t *glob ;
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diag_info *d ;
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struct aldef_t *ald ;
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} expno ;
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/*
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STRUCTURE REPRESENTING EXPRESSIONS
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An expression has a number of constituents given by the sonf, brof,
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ptrf and numf fields, a shape (which is another expression), a
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name representing the expression type, a properties field, and a
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single byte as an end marker.
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*/
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struct exp_t {
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unsigned char namef ;
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unsigned char lastf ;
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unsigned char park ;
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prop propsf ;
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expno sonf ;
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expno brof ;
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expno ptf ;
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expno numf ;
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struct exp_t *shf ;
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} ;
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/*
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THE EXPRESSION TYPE
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The type exp is a pointer to the structure given above. Access to the
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fields of the structure is by means of the macros given in expmacs.h.
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*/
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typedef struct exp_t *exp ;
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#endif
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