Re: [PHP-LANG] Duff's device

I'm not suprised that it doesn't work. I've seen this before, but never quite understood how the compiler handles the do..while loop.  Logically, I understand how it works, but I'm not sure how the program finds the beginnning of the loop.

Thanks.
Peter

> 
> Just wondering:
> 
> as PHP syntax is heavily based on C syntax i was curious if it 
> would accept this code snippet:
> 
> 
> 
>   <?php
> 
>   $to="";
>   $from="abcdefghijklmnopqrstuvwxyz";
>   $count=12;
> 
>   $n = ($count + 7) / 8;      
>   $i=0;
>      switch ($count % 8)
>      {
>      case 0:        do {  $to .= $from{$i++};
>      case 7:              $to .= $from{$i++};
>      case 6:              $to .= $from{$i++};
>      case 5:              $to .= $from{$i++};
>      case 4:              $to .= $from{$i++};
>      case 3:              $to .= $from{$i++};
>      case 2:              $to .= $from{$i++};
>      case 1:              $to .= $from{$i++};
>                         } while (--$n > 0);
>      }
> 
>   echo $to;
> 
>   ?>
> 
> 
> 
> sure enugh it didn't although the C equvalent is indead legal
> 
> -> http://www.tuxedo.org/~esr/jargon/html/entry/Duff's-device.html
> 
>   ;)
> 
> -- 
> Hartmut Holzgraefe  [email protected]  http://www.six.de  +49-711-99091-77
> 
> -- 
> PHP Language Mailing List (http://www.php.net/)
> To unsubscribe, e-mail: [email protected]
> For additional commands, e-mail: [email protected]
> To contact the list administrators, e-mail: [email protected]