Re: put of access type

[Robert A Duff <bobduff@shell01.TheWorld.com>]

Stephen Leake <stephen_leake@stephe-leake.org> writes:

> Robert A Duff <bobduff@shell01.TheWorld.com> writes:
>> Right, but the OP wants to learn Ada, as far as can tell.  I don't think
>> the best way to do that is to focus on "internals".
>
> That depends on your learning style. I understood tagged types and
> dispatching much better after I learned about one possible
> implementation. 

OK, in this case, I agree.

> The same goes for access types for unconstrained arrays; they just
> don't make sense if you don't know about the dope.

In this case I don't.  I'm not sure why, and it may well be a matter of
taste, but for me, drawing pictures with arrows representing the
pointers is better for understanding pointers than thinking about
machine addresses.  And I'm a compiler writer -- I know all
about machine addresses.  ;-)

And I think that applies to many languages, not just Ada.

- Bob