From mboxrd@z Thu Jan  1 00:00:00 1970
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From: Lutz Donnerhacke <lutz@iks-jena.de>
Newsgroups: comp.lang.ada
Subject: Re: "continue/next" for "loop"
Supersedes: <slrnbqckmm.m1.lutz@taranis.iks-jena.de>
Date: Mon, 3 Nov 2003 13:07:22 +0000 (UTC)
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* amado.alves wrote:
>> No. I don't know how to invert a complex loop.
> 
> What on Earth are you talking about? The two constructs
> 
> (1)  if I mod J = 0 then
>         goto next;
>      end if;
>      Put (I'Img);
>      <<next>> null;
> 
> (2)  if I mod J /= 0 then
>         Put (I'Img);
>      end if;
> 
> are clearly equivalent!

But both are the result of an oversimplification!

outer: loop
  inner: loop
    Complex_Actions_1;
    if First_Condition then
      Some_Justify_Actions;
      goto next_outer;
    end if;
    Complex_Actions_2;
    if Second_Condition then
      Some_Other_Justify_Actions;
      goto next_outer;
    end if;
    Complex_Actions_3;
  end loop inner;
  Complex_End_Statments;
  exit outer when Other_Condition;
  More_Statments;

  <<next_outer>> null;
end loop outer;

I'd like to find a more amazing version of this braindead goto.
Please do not assume, that I'm too stupid to invert a condition in a
simplified example. IT'S NOT HOMEWORK!