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From: REH <spamjunk@stny.rr.com>
Newsgroups: comp.lang.ada
Subject: Re: Compiler Bug
Date: Tue, 4 Dec 2007 14:49:32 -0800 (PST)
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Date: 2007-12-04T14:49:32-08:00
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On Dec 4, 5:45 pm, "Randy Brukardt" <ra...@rrsoftware.com> wrote:
> "REH" <spamj...@stny.rr.com> wrote in message
>
> news:97d0825d-ee08-45ef-b736-ca005caf1a81@e23g2000prf.googlegroups.com...
>
>
>
> > No, I can't, sorry.  But the gist of it is:
>
> > function F1 return T1;
> > pragma Inline(F1);
>
> > function F1 return T1 is
> >   R : T1;
> > begin
> >   -- do stuff
> >   return R;
> > end F1;
>
> > function F2 return T2 is
> >   V : T1 := F1;
> >   R : T2;
> > begin
> >   -- do stuff
> >   return R;
> > end F2;
>
> > The compiler and debugger treat the R in F2 as if it is of type T1,
> > not T2.  Exceeding the bounds of T1 cause F2 to raise a
> > constraint_error.  The problem goes away if the pragma inline is
> > removed.
>
> The way you describe it, it sounds like a compiler bug. But without seeing
> the actual code, it is impossible to tell for sure. (It's not unusual for a
> compiler-bug-reporter to see one problem when something totally different is
> going on -- it even happens to me from time-to-time.) Ada's visibility rules
> are complex enough that you could be getting some other kind of conflict
> without realizing it.
>
>                                        Randy.

Sure, I understand completely.  Thank you both for your help.

REH