Re: A Problem With Access Types

[dik@mcvax.UUCP]

In article <124000003@inmet> callen@inmet.UUCP writes:
 > 
 > Try something like this (but be forewarned that the code is not necessarily
 > going to be portable):
Nor is it going to be fool-proof.
 > 
 > with Unchecked_Conversion;
 > with System;
 > ...
 >      type A_REC is
 >        record
 >           ...
 >        end;
 > 
 >      type A_ACCESS is access A_REC;
 > 
 >      function Make_Pointer is new Unchecked_Conversion(
 >        SOURCE=>System.Address, TARGET=>A_ACCESS);
 > 
 >      A : A_REC;
 >      A_A : A_ACCESS;
Ah, yes, the pointer to the stack.  Note however that your contents
might get lost while youre pointer still exists.  (And no, you do
not need UNCHECKED_DEALLOCATION; the contents will deallocate
themselves.)
Useful?  Maybe.
Portable?  Probably yes.
Advisable?  Definitely no.
-- 
dik t. winter, cwi, amsterdam, nederland
INTERNET   : dik@cwi.nl
BITNET/EARN: dik@mcvax