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From: Hyman Rosen <hymie@prolifics.com>
Subject: Re: Ada OO Mechanism
Date: 1999/06/08
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Matthew Heaney <matthew_heaney@acm.org> writes:
> On 07 Jun 1999 15:26:52 -0400, Hyman Rosen <hymie@prolifics.com> wrote:
> However, the declaration
>   declare
>     S : String := Func_Return_String;
>   begin
> is perfectly legal, and so is the declaration
>   declare
>     O : T'Class := Func_Return_T_Tic_Class;
>   begin
> In neither case is heap required.

And despite that, you said before that the size of O is determined
at run-time, not at compile-time. Also, I looked at some of the code
generated by GNAT, and saw references to a secondary_stack_allocate
(or something like that) function. So the storage for S and O is
allocated somewhere, but it's on the stack? Is this something like
alloca?