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From: dewar@cs.nyu.edu (Robert Dewar)
Subject: Re: C Interface question
Date: 1996/07/11
Date: 1996-07-11T00:00:00+00:00	[thread overview]
Message-ID: <dewar.837093265@schonberg> (raw)
In-Reply-To: 4s1q6c$2es@ionews.ionet.net


Kevin said

"I haven't tried it, but if a 'Address is the same size as an Access type, and ha
s the same value, then you may be able to
do the following:

function C_Function ( value : in Integer; Result : in System.Address ) return Sy
stem.Address;

Then, just use Unchecked conversion to convert the result to an Access type, and
 access it that way."


This is non-portable, and really too low level. Using a named access type
is much cleaner, and cleaner still is just using an in out parameter 
assuming your compiler follows the proper Ada 95 implementation advice.





      reply	other threads:[~1996-07-11  0:00 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1996-07-09  0:00 C Interface question Jerry van Dijk
1996-07-09  0:00 ` Robert Dewar
1996-07-10  0:00   ` Theodore E. Dennison
1996-07-11  0:00     ` Robert Dewar
1996-07-11  0:00   ` Jerry van Dijk
1996-07-11  0:00   ` Ken Garlington
1996-07-11  0:00     ` Robert Dewar
1996-07-09  0:00 ` Laurent Guerby
1996-07-11  0:00   ` Jerry van Dijk
1996-07-16  0:00     ` David Kirkland
1996-07-11  0:00 ` Kevin Krieser
1996-07-11  0:00   ` Robert Dewar [this message]
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