RE: Two reade loops: which one preferred ?

["John Brandt Sr." <pgmr@xxxxxxxxxxxxxxx>]

I agree with what Eric said.
John Brandt
iStudio400.com
(903) 523-0708

-----Original Message-----
From: DeLong, Eric [mailto:EDeLong@xxxxxxxxxxxxxxx]
Sent: Friday, November 21, 2003 9:09 AM
To: 'Midrange Systems Technical Discussion'
Subject: RE: Two reade loops: which one preferred ?


In addition, I find the priming read to be extremely useful if you are
incorporating level break logic, as it allows you to initialize the break
values before you enter the loop.  I can't tell you how much I hate to see
level break logic muddied up by initialization code.  


Eric DeLong
Sally Beauty Company
MIS-Project Manager (BSG)
940-898-7863 or ext. 1863



-----Original Message-----
From: Jon Paris [mailto:Jon.Paris@xxxxxxxxxxxxxx]
Sent: Friday, November 21, 2003 8:03 AM
To: midrange-l@xxxxxxxxxxxx
Subject: RE: Two reade loops: which one preferred ?


 >> So, applying the C/PASCAL approach to RPG forces to include one
additional read before the loop as in Style#1.

I always code the additional read before the loop - but for very
straightforward logical reasons that have nothing to do with choice of
language.

If the very first read of a file causes EOF, then that (in most cases) will
be an _error_ condition.  On the other hand, EOF within the loop is an
_expected_ condition - or I'll never get out!

I simply prefer to handle those widely different circumstances with two
separate reads.

Jon Paris
Partner400
www.Partner400.com


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