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From: eru!hagbard!sunic!enea!sommar@bloom-beacon.mit.edu  (Erland Sommarskog)
Subject: procedural variables
Date: 24 Feb 91 21:18:11 GMT	[thread overview]
Message-ID: <2683@enea.se> (raw)

Also sprach Stephen Edwards <edwards@cis.ohio-state.edu>:
>This isn't quite correct.  Ironically, procedure _variables_ (in Ada)
>aren't even needed for X callbacks, as virtually all Ada-to-C X interfaces
>illustrate.  One only need pass an indirect reference to an Ada procedure
>on to the C code.  For this purpose, there isn't need of Ada-manipulable
>procedure variables.  (this would not be true when interfacing to an all
>Ada implementation of X, of course.)

...or you wanted an interface package with declarations that
assured that you passed callbacks with the right parameter
profile.
-- 
Erland Sommarskog - ENEA Data, Stockholm - sommar@enea.se

             reply	other threads:[~1991-02-24 21:18 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1991-02-24 21:18 Erland Sommarskog [this message]
  -- strict thread matches above, loose matches on Subject: below --
1991-02-14 19:08 procedural variables stt
1991-02-11 18:04 J o s e D u a r t e ! ! !
1991-02-11 21:45 ` Howard Turner
1991-02-12 12:32   ` Matthias Ulrich Neeracher
1991-02-15 18:32     ` Charles H. Sampson
1991-02-16 13:12       ` madmats
1991-02-19 20:33         ` stephen edwards
1991-02-20 21:02           ` Jim Showalter
1991-02-18  0:28       ` Jim Showalter
1991-02-12 23:04   ` (George C. Harrison) Norfolk State University
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