From: cis.ohio-state.edu!pacific.mps.ohio-state.edu!zaphod.mps.ohio-state.edu!h
Subject: Re: simple exception-handler
Date: 8 Feb 93 19:36:53 GMT [thread overview]
Message-ID: <C25AHH.8Bz@irvine.com> (raw)
In article <otte.2.0@antpc.ant.uni-hannover.de> otte@antpc.ant.uni-hannover.de
(Herr Otte) writes:
> While I am trying to test my packages and subprograms,
> I want to write an exception-handler, which only puts
> the name of the raised exception to the standard output.
> The first solution, that I found, was :
>
> with Text_IO ;
> procedure Error_IO_Test is
> ...
> exception
> when CONSTRAINT_ERROR => Text_IO.Put_Line ("CONSTRAINT_ERROR");
> when NUMERIC_ERROR => Text_IO.Put_Line ("NUMERIC_ERROR");
> when PROGRAM_ERROR => Text_IO.Put_Line ("PROGRAM_ERROR");
> when STORAGE_ERROR => Text_IO.Put_Line ("STORAGE_ERROR");
> when TASKING_ERROR => Text_IO.Put_Line ("TASKING_ERROR");
> end Error_IO_Test;
>
> The number of lines in the exception-handler will increase,
> if I take care not only for the standard exceptions, but for
> the Text_IO exceptions and my own user-defined exceptions.
> For this reason, I prefer a solution like this :
>
> with Text_IO ;
> procedure Error_IO_Test is
> ...
> exception
> when others => Text_IO.Put_Line ( <Name_of_the_Error> );
> end Error_IO_Test;
> Of course, the above solution with Text_IO doesn't work.
> Do there really exist a solution, that is easier than
> writing all the names of all known exceptions ?
There's no "Current Exception Name" function in Ada, but there's
nothing barring Ada compiler vendors from including such a function in
SYSTEM or in another vendor-supplied package. Our compiler does
provide a function like that. You should check the Ada documentation
that came with your compiler, or ask your vendor.
Adam Beneschan
Irvine Compiler Corporation
next reply other threads:[~1993-02-08 19:36 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
1993-02-08 19:36 cis.ohio-state.edu!pacific.mps.ohio-state.edu!zaphod.mps.ohio-state.edu!h [this message]
-- strict thread matches above, loose matches on Subject: below --
1993-02-09 10:41 simple exception-handler Alain Marpinard
1993-02-09 1:59 David Emery
1993-02-08 22:40 Mark A Biggar
1993-02-08 18:27 Kenneth Anderson
1993-02-08 10:21 enterpoop.mit.edu!ira.uka.de!Germany.EU.net!urmel.informatik.rwth-aachen.
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