RE: Problem with dates while converting RPGIII to IV -- RPG400-L

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Jerry, some people might say that sounds like an input validation
failure - but not me. :-)

Trevor Briggs
Analyst/Programmer
Lincare, Inc.
(727) 431-1246
TBriggs2@xxxxxxxxxxx
-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Jerry C. Adams
Sent: Wednesday, September 12, 2012 9:33 AM
To: 'RPG programming on the IBM i / System i'
Subject: RE: Problem with dates while converting RPGIII to IV

Dave,

It depends on how you do the conversion.

For example, where A is 3.0, X = 300 and Y = 700,
C X ADD Y A
would *not* cause a machine check. The result (A) would simply overflow
resulting in A = 0.

But,
/free
A = x + y
/end-free

does result in a machine check because EVAL (which is what free format
uses
here) checks for overflow.

I once had to put MONITORs around a string of calculations (EVALs)
because
the @#$% purchasing "managers" couldn't define pricing factors
correctly.

Jerry C. Adams
IBM i Programmer/Analyst
Military Intelligence is not a contradiction in terms, "Light Infantry"
is!

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