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From: "Randy Brukardt" <randy@rrsoftware.com>
Newsgroups: comp.lang.ada
Subject: Re: Standard Ada Preprocessor (Was: why ada is so unpopular ?)
Date: Mon, 26 Jan 2004 13:23:39 -0600
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Date: 2004-01-26T13:23:39-06:00
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"Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> wrote in message
news:onk910pmf41et1uai45hc6mfqhasdkmi8c@4ax.com...
...
> The technique above works fine with subroutines having defaults. But
> it becomes awkward with types and values. Worse is that one cannot
> hide implementations in private:
>
> package Win32 is
>    type File is limited private;
>    procedure Read (...);
>    procedure Write (...);
>    package Interface is new Abstract_OS_Interface (File);
>       -- Error, a premature use of File!
> private
>    type File is limited record
>       ... -- Do want them see it
>    end record;
> end Win32;

There is an AI on this problem. Dunno if it will get solved, though - the
proposed solutions have not picked up much support...

              Randy.