Re: [slang-users] Question about the _for statement

["John E. Davis" <jed@xxxxxxxxxxx>]

Bernd Eggink <bernd.eggink@xxxxxxxxxx> wrote:
> the documentation says about the _for statement: "The loop will 
> terminate when the value of the loop index exceeds last-value". It says
> nothing about what value the variable will have in this case.
> Apparently it is not last-value+1 as I had expected, but last-value.
>
> I'm fine with that, but can I rely on it?

After execution of the _for loop, the value of the variable will what
it was when it last exited the body of the loop.  Here are some
examples:

   variable i = NULL;
   _for i (0, 10, 1)
     {
     }
   % Here, i will be 10

   i = NULL;
   _for i (0, 10, 1)
     {
        i = i + 20;
     }
   % Here, i will be 30

   variable i = NULL;
   _for i (0, -10, 1)
     {
     }
   % Here i will be NULL

You can rely upon this behavior.
Thanks,
--John

>
> Kind regards,
> Bernd
>
> -- 
> http://www.sudrala.de
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