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From: Stephen Leake <Stephe.Leake@nasa.gov>
Newsgroups: comp.lang.ada
Subject: Re: proposal for new assignment operators
Date: 26 Jun 2003 14:32:17 -0400
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Georg Bauhaus <sb463ba@d2-hrz.uni-duisburg.de> writes:

> Stephen Leake <Stephe.Leake@nasa.gov> wrote:
> : 
> : Hmm. Changing this so I can try to compile it:
> : 
> : procedure Georg
> : is
> : begin
> :   case a*(%$%) is
> :      when o.O          => A :=+ ('o');
> :      when (8-v)|12#8B# => OM(O.%/%(0,-0));
> :      when 2!2:0:..2:1: => null;
> :      when others       => << oO >> O.oo (O.o>o.O);
> :   end case;
> : end Georg;
> : 
> : I get a GNAT bug with GNAT 3.16a - congratulations :). I don't think
> : I'll submit it.
> 
> What kind of bug do you get? 

+===========================GNAT BUG DETECTED==============================+
| 3.16a (20030120) (i586-pc-mingw32msv) Program_Error EXCEPTION_ACCESS_VIOLATION|

As far as I am concerned, there is only one "kind" of bug in the
compiler (a bad one :).

> The GCC 3.1 compiler (1173) for Mac, when run with your changes, produces a
> segmentation fault, 

I gather you do not get this "GNAT BUG box"? Exactly how is the
"segmentation fault" reported? I hope it is in the form of an
unhandled Program_Error exception!

> after reporting "a" is undefined and compilation error.

I don't get that much.

> See my reply to Preben's disbelief (:) for the complete program,
> which does compile with GNAT 3.15p on GNU/Linux and 3.1 on Mac.

Ok.

-- 
-- Stephe