Hi, Paul.

So you'll stop accusing me of lurking here, and to show I've learnt
something from Brenton (or not ) ...

[...]

PE>  {
PE>    temp = a;
PE>    a = b;
PE>    b = temp;
PE>  }

Couldn't you avoid using the temporary variable by replacing the above
with
     {
       a ^= b;
       b ^= a;
       a ^= b;
     }

Regards, FIM.

 * SLMR 2.1a * I parked my harddisk - and got a ticket!

--- Maximus 2.01wb