From: Victor Porton <porton@narod.ru>
Subject: Convert between C "void*" pointer and an access
Date: Thu, 12 Oct 2017 00:52:15 +0300
Date: 2017-10-12T00:52:15+03:00 [thread overview]
Message-ID: <orm3qe$1r0c$1@gioia.aioe.org> (raw)
What is the right way to convert between C "void*" pointer and an access to
a tagged or class-wide type?
Ada.Unchecked_Conversion seems to be what I need, but the access type may be
"fat" and thus have another format than void*.
I caught myself doing such unchecked conversions, but now I feel I did an
error.
For example, let
type X_Type is abstract tagged null record;
How to store X_Type'Class pointer in "void*" and convert them back and
forth?
--
Victor Porton - http://portonvictor.org
next reply other threads:[~2017-10-11 21:52 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-11 21:52 Victor Porton [this message]
2017-10-11 22:32 ` Convert between C "void*" pointer and an access Randy Brukardt
2017-10-11 23:03 ` Victor Porton
2017-10-12 7:57 ` Dmitry A. Kazakov
2017-10-12 8:05 ` Simon Wright
2017-10-29 14:50 ` David Thompson
2017-10-11 22:58 ` Victor Porton
2017-10-11 23:12 ` Victor Porton
2017-10-12 1:01 ` Victor Porton
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