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From: Rod Kay <rod.kay@aulace.com>
Newsgroups: comp.lang.ada
Subject: Re: Problem where a function is invoked once but called twice (when
 invocation is within an allocator).
Date: Sat, 7 May 2011 02:45:46 -0700 (PDT)
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Date: 2011-05-07T02:45:46-07:00
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On May 7, 7:06=A0pm, Georg Bauhaus <rm.dash-bauh...@futureapps.de>
wrote:
>
> First, I can confirm that on Mac OS X the assembly listing
> of tester shows three calls, too:
>
> $ grep _media__video__next_frame build/tester.s
> =A0 =A0 =A0 =A0 call =A0 =A0_media__video__next_frame
> =A0 =A0 =A0 =A0 call =A0 =A0_media__video__next_frame
> =A0 =A0 =A0 =A0 call =A0 =A0_media__video__next_frame
> $

   Thanks for the info.


> The following appears to be generating two calls only, FWIW:
>
> =A0 =A0 the_Movie : media.Video.view :=3D media.Video.new_Video ("xyz.avi=
");
>
> =A0 =A0 Case_1 : =A0 =A0 =A0 =A0openGL.Image :=3D the_Movie.next_Frame;
> =A0 =A0 Workaround : =A0 =A0openGL.Image renames The_Movie.Next_Frame;
> =A0 =A0 Case_2 : access openGL.Image :=3D new opengl.Image' (Workaround);
>

   Heh, this is indeed how I ended up tackling the problem in the real
source :).