Re: Pointer function parameter

[Alejandro Villanueva <190921@cepsz.unizar.es>]

Robert Dewar wrote:

> In article <cJGH5.335638$i5.5078954@news1.frmt1.sfba.home.com>,
>   tmoran@bix.com wrote:
> > >virtually all dynamic data structures (linked lists, trees,
> etc.)
> > >require them.  [access types]
> >   No. People were making those structures using array indexing
> and not
> > access types a long, long time ago.  Look at some old Fortran
> code.
>
> Well of course you can do anything in any style, The reason
> that Fortran programmers did this was simple, no pointers!
> Now of course there are still cases where arrays can be
> usefully used instead of pointers (see the front end of
> GNAT and the use of the Table abstraction for example), but
> the use of pointers is perfectly fine in Ada, and we should
> not think otherwise. Almost nothing *requires* anything if
> we are strict about the term, Turing machines are pretty
> powerful :-)
>

You are right! Turing machines can do ANYTHING, and don't forget that
also in Assembly ;-)


>
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Alejandro Villanueva
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