Re: Good places to use "The Cycle" in today's RPG was->Re: FW: Niftiest thing(s) you have done in RPG ILE or /FREE

GUY_HENZA@xxxxxxxxxxxxxx wrote:

I was taught structured programming in 1980 and I have never written a new
program with a GOTO, ITER or LEAVE. I consider them to be poor program
design.

Hmm. Sounds like you were taught by a fanatical disciple of Wirth.

There is nothing inherently bad about ITER or LEAVE, provided they are
used in situations (e.g., brute-force table look-up) in which premature
exit of a loop is the norm, and completion of the loop is the exception.

--
James H. H. Lampert
Touchtone Corporation

Exactly. I also use them when there are more than one reasons to
leave a loop, and more than one reason to start at the top again.

Why have twelve nests of if/else/ends inside your do loops when you
can test/dosomething/iter, test/dosomething/iter?

Why have twelve conditions boogering up a perfectly simple do loop
when you can test/dosomething/leave?

I also like the leave/iter for exfmt processing routines:

dow 1 = 1
exfmt screen

select
when *inkc
return

when *inkl
leave

when *inkd
exsr prompt
iter

other
exsr edit

if errors
iter
end

exsr update
leave
endsl

enddo