Error compiling thr_lqueue.cc

[Raphael Collet]

Dear Evert,

I am as astounded as you.  Your analysis is perfectly correct.  This 
code doesn't make any sense to me.  The problem is that I don't even 
know what it is supposed to do...

The author is Denys Duchier.  Denys, if you ever read this, can you 
please give us a clue?  What is it supposed to do?  And could you also 
explain the idea of the algorithm itself, because this looks very weird 
to me.  I can fix it if you just give me a few hints.

Cheers,
raph

ti008977 at tiscali.nl wrote:
> Hi all,
> 
> Im trying to compile using the microsoft express 2005 compiler.
> 
> In thr_lqueue.cc I found this code:
> 
> int ThreadQueue::getRunnableNumber()
> {
>   ThreadQueueIterator iter(this);
>   int ret=0;
>   Thread**ptr;
>    while (ptr=iter.getNext()) ret=(*ptr)->getRunnableNumber();
>   return ret;
> }
> 
> ptr can't be converted to iter.getNext(); but *ptr can.
> Then I get stuck at getRunnableNumber(), which is no part of Thread, 
> but of ThreadsPool. It might, of course, also be recursive.
>