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From: "John R. Strohm" <strohm@airmail.net>
Newsgroups: comp.lang.ada
Subject: Re: Ada 0x, exception idea ?
Date: Sun, 27 Jul 2003 21:46:19 -0500
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Date: 2003-07-27T21:46:19-05:00
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"Wesley Groleau" <wesgroleau@myrealbox.com> wrote in message
news:LGadnTxRQ9xh8bmiU-KYvg@gbronline.com...
> sk wrote:
> > wesgroleau@myrealbox.com :
> >  > case C_function (params) is
> >  >
> >  >   when 0        => null; -- success
> >  >   when Bummer   => raise Its_a_Bummer;
> >  >   when Darn     => raise Darn_it;
> >  >   when Blast    => raise Blast_It;
> >  >   when Disaster => raise Program_Error;
> >  >
> > This still seems a bit "visually-bulky" (for want
> > of a better expression) but interesting and cleaner
> > than possible pages of "if-then-elsif" before
> > resuming with the original purpose of the algorithm.
>
> Why is the above (which works now) more "bulky"
> than the requested
>
>     raise Its_A_Bummer when Result = Bummer;
>     raise Darn_It      when Result = Darn;
>     raise Blast_It     when Result = Blast;

Observe that you get PRECISELY the same result with

  if Result = Bummer then raise Its_A_Bummer; end if;
  if Result = Darn   then raise Darn_It;      end if;
  if Result = Blast  then raise Blast_It;     end if;