RE: Something Wrong with the following Code ?

No, Booth, because the ELSE is an implied GOTO under the covers to the ENDIF.

Jerry C. Adams
IBM System i Programmer/Analyst
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B&W Wholesale
office: 615-995-7024
email: jerry@xxxxxxxxxxxxxxx


-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Booth Martin
Sent: Thursday, June 03, 2010 1:03 PM
To: RPG programming on the IBM i / System i
Subject: Re: Something Wrong with the following Code ?

What amazes me even more is that it actually ran without falling into an
endless loop?



On 6/3/2010 1:50 PM, Marc Couture wrote:

Jerry,



For sure this isn't structure code. I had to modify and old program probably written in the 70's. And was amazed to find out a goto outside the subroutine.



More amazed that it compiled and execute !!!



"If you think education is expensive, try ignorance"
(Derek Bok, pres. of Harvard Univ. 1971-1990)

From: Jerry@xxxxxxxxxxxxxxx
To: rpg400-l@xxxxxxxxxxxx
Date: Thu, 3 Jun 2010 12:08:43 -0500
Subject: RE: Something Wrong with the following Code ?

Well, first GOTO's are frowned upon. Second, one cannot branch out of a subroutine.

One can do this:

A IFEQ B
(do stuff)
X TAG
(do more stuff
ELSE
(do other stuff
GOTO X
ENDIF

Charlie and I had a debate with another guy at COMMON years ago about whether or not this was structured code. Charlie and I just rolled out eyes in disbelief. But it will compile and execute.

Jerry C. Adams
IBM System i Programmer/Analyst
--
B&W Wholesale
office: 615-995-7024
email: jerry@xxxxxxxxxxxxxxx

You can look it up. -Casey Stengel


-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Marc Couture
Sent: Thursday, June 03, 2010 11:37 AM
To: RPG programming on the IBM i / System i
Subject: Something Wrong with the following Code ?



C BEG TAG

C ExSr INUSE

C Eval *InLr = *On

*--------------------------------------------------------------------------------------------*

* Check For Record In Use Error *

*--------------------------------------------------------------------------------------------*

C INUSE BegSr

C If *In01 = *Off

C Eval *In01 = *ON

C Else

C Eval *In01 = *OFF

C EndIf

C GOTO BEG

C EndSr




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