From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me
X-Spam-Level: 
X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham
	autolearn_force=no version=3.4.4
X-Google-Language: ENGLISH,ASCII-7-bit
X-Google-Thread: 103376,ef14853fdea3d0ea
X-Google-Attributes: gid103376,public
X-Google-ArrivalTime: 2001-04-18 04:34:29 PST
Path: 
 supernews.google.com!newsfeed.google.com!newsfeed.stanford.edu!news.tele.dk!151.189.0.75!newsfeed.germany.net!newsfeed2.easynews.net!easynews.net!news.cid.net!news.enyo.de!news1.enyo.de!not-for-mail
From: Florian Weimer <fw@deneb.enyo.de>
Newsgroups: comp.lang.ada
Subject: Re: Q: Interfacing C/ADA: Indirect Calls
Date: 18 Apr 2001 13:46:51 +0200
Organization: Enyo's not your organization
Message-ID: <87n19emnv8.fsf@deneb.enyo.de>
References: <3ADD8E81.CE65B92A@uundz.de>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Xref: supernews.google.com comp.lang.ada:6968
Date: 2001-04-18T13:46:51+02:00
List-Id: <comp.lang.ada>

Tilman Gloetzner <Tilman.Gloetzner@uundz.de> writes:

> use_indirect.adb:10:08: subprogram has invalid convention for context
> use_indirect.adb:16:08: subprogram has invalid convention for context

I think you have to insert

   pragma Convention (C, Indirect_Func);

to change the convention of the access-to-subprogram type.