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From: dennison@telepath.com
Subject: Re: Help! (How to do this (C) in Ada?
Date: 1999/05/14
Message-ID: <7hhh5g$avj$1@nnrp1.deja.com>#1/1
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References: <7heg6m$43a$1@nnrp1.deja.com> <t7aev8ejp4.fsf@calumny.jyacc.com>
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Date: 1999-05-14T00:00:00+00:00
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In article <t7aev8ejp4.fsf@calumny.jyacc.com>,
  Hyman Rosen <hymie@prolifics.com> wrote:
> byhoe@my-dejanews.com writes:
> > I am puzzle with the following C code:
> > #define InheritLayout ((Boolean (*)())_Inherit)
> > How can I implement the above in Ada?
>
> In C, this is a typecast of the value of _Inherit (whatever that is)
> into a pointer to a function which takes no arguments and returns a
> Boolean (whatever that is). I don't know Ada myself, but my guess
> would be that in Ada you declare a type which is access to the correct
> type of function, then use unchecked_conversion to convert _Inherit to
> that type.

You probably wouldn't need unchecked conversion, since the types would
be the same. But then again, if you are somewhat carful about how you
define your types, you might not need this conversion routine at all.

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