Re: infinite loop

[rob@xxxxxxxxx]

Another suggestion is to use the whole darn subprocedure on the dow.  For 
example
dow MainGuts();
enddo;

and the subprocedure MainGuts would return an indicator variable of true 
or false to exit the loop.  I use this for traditional read loops, and for 
sql cursor fetches.

dow FetchCursor();
  // your logic here
enddo;

Two benefits:
1 - Prior to V5R4, you could keep most of your sql free format this way. 
No longer an issue with V5R4.
2 - Only 1 read or fetch.  No primer needed.
3 - If one does an iter in mid loop, you don't have an infinite loop 
because, then, you are not bypassing the actual read.  For example

fetch...; // priming read/fetch
dow 1=1;
  if z=b;
    iter;  // infinite loop
  endif;
  fetch...
enddo;

vs

dow FetchCursor();
  if z=b;
    iter;  // no longer an infinite loop
  endif;
enddo;

4 - last benefit is that you can have extensive error handling in your 
read/fetch subprocedure and not clutter up mainline.  Like who wants to 
see clutter in the mainline about a read failing NOT because you hit end 
of file, but because a read trigger says you're not authorized?

Rob Berendt