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Diff for /gforth/struct.fs between versions 1.8 and 1.11

version 1.8, 1995/11/07 18:07:02 version 1.11, 1997/06/06 17:27:58
Line 1 Line 1
 \ data structures (like C structs)  \ data structures (like C structs)
   
 \ Copyright (C) 1995 Free Software Foundation, Inc.  \ Copyright (C) 1995, 1997 Free Software Foundation, Inc.
   
 \ This file is part of Gforth.  \ This file is part of Gforth.
   
Line 35 Line 35
 \ addr2 is the aligned version of addr1 wrt the alignment size n  \ addr2 is the aligned version of addr1 wrt the alignment size n
  1- tuck +  swap invert and ;   1- tuck +  swap invert and ;
   
 : field ( offset1 align1 size align -- offset2 align2 )  : dozerofield ( -- )
 \ note: this version uses local variables      \ a field that makes no change
      Header reveal dofield: cfa,      \ to enable accessing the offset with "['] <field> >body @" this
         >r rot r@ nalign  dup ,  ( align1 size offset )      \ is not implemented with "['] noop alias"
         + swap r> nalign ;      last @
       if
           immediate
       then
   does> ( -- )
       drop ;
   
   : field ( offset1 align1 size align "name" -- offset2 align2 ) \ gforth
       \G name execution: ( addr1 -- addr2 )
       >r rot r@ nalign dup
       if \ field offset <> 0
           [IFDEF]  (Field)
               (Field)
           [ELSE]
               Header reveal dofield: cfa,
           [THEN]
       else
           create dozerofield
       then ( align1 size offset )
       dup , + swap r> nalign ;
   
 : end-struct ( size align -- )  : end-struct ( size align -- )
  2constant ;   2constant ;
Line 82 Line 101
   
 : struct-allocate ( size align -- addr ior )  : struct-allocate ( size align -- addr ior )
     drop allocate ;      drop allocate ;
   
   : struct-alloc ( size align -- addr )
       struct-allocate throw ;
Removed from v.1.8  
changed lines
  Added in v.1.11

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