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From: bobduff@world.std.com (Robert A Duff)
Subject: Re: Address to function pointer conversion
Date: 1997/06/16
Message-ID: <EBw65M.5MD@world.std.com>#1/1
X-Deja-AN: 248928269
References: <5nrq5h$13cm@info4.rus.uni-stuttgart.de>
 <5o39sm$2fl6@info4.rus.uni-stuttgart.de> <dewar.866484497@merv>
 <33A5B0B3.7EA663D3@link.com>
Organization: The World Public Access UNIX, Brookline, MA
Newsgroups: comp.lang.ada
Date: 1997-06-16T00:00:00+00:00
List-Id: <comp.lang.ada>


In article <33A5B0B3.7EA663D3@link.com>, Samuel Mize  <smize@link.com> wrote:
>I would agree EXCEPT -- dlsym is returning an address at run time,
>so you can't use pragma Import.  You still have the problem, how
>do you call this address from Ada?

True, but you can use pragma Convention(C) on the access-to-function
type.  Anyway, the caller needs to know what arguments to pass, so it's
expecting some particular argument profile.  So the caller, at least,
ought to know what to do.

- Bob