RE: Question of the use of HI,LO,EQ indicators

Thank Barbara,

As always...an excellent reply.

Charles Wilt
iSeries Systems Administrator / Developer
Mitsubishi Electric Automotive America
ph: 513-573-4343
fax: 513-398-1121
 

> -----Original Message-----
> From: rpg400-l-bounces@xxxxxxxxxxxx
> [mailto:rpg400-l-bounces@xxxxxxxxxxxx]On Behalf Of Barbara Morris
> Sent: Wednesday, March 23, 2005 8:53 PM
> To: rpg400-l@xxxxxxxxxxxx
> Subject: Re: Question of the use of HI,LO,EQ indicators
> 
> 
> "Wilt, Charles" wrote:
> > 
> > Doesn't seem to me like it is a good idea to use the same 
> indicator in both places.  Is this a generally accepted 
> practice?  Does it really work?  Is the indicator set on if 
> there's an error OR if you hit EOF?
> > 
> 
> Yes, the indicator is set on for either case.  The way result 
> indicators
> work is this: they are set to '0' when the operation begins, and then
> they're set to '1' during the operation if something happens.  So for
> the READC, 97 would be set to '0' before the READC started, 
> and then be
> set to '1' if either an error or EOF happened.
> 
> Aside from the fact that using indicators is considered outmoded, I
> think it's better to use two indicators right from the start 
> in case you
> later decide you want to use two indicators.  Changing code 
> to use a new
> indicator involves a fair amount of checking to see if using it will
> affect anything else in the program.  (Which is one of the reasons I
> prefer using %EOF and %ERROR to indicators.)
> 
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