From: ara.t.howard@...
Date: 2005-12-13T08:37:02+09:00
Subject: Re: Idiom wanted: do-while

On Tue, 13 Dec 2005, Adam Shelly wrote:

> So I was working on the quiz solution, and
> I had some code like this:
>
>   b = simulate board,m
>   while another_turn?(b,m)
>      b = simulate b,m
>   end
>
>
> If I was doing this in C, I'd use a do-while loop instead, to avoid
> repeating the line outside the loop:
>
>  b = board;
>  do {
>    b = simulate(b.m);
>  }
>  while ( another_turnta(b,m));
>
> What's the do-while idiom in ruby?
> I ended up with this, but it needs an extra flag variable:
>
>  b,taketurn  = board,true
>  while taketurn
>    b = simulate b,m
>    taketurn =  another_turn?(b,m)
>  end
>
> Is there a ruby idiom for do-while?

   harp:~ > cat a.rb
   i = 0

   (
     p i
     i += 1
   ) while i < 3


   harp:~ > ruby a.rb
   0
   1
   2

cheers.

-a
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