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I just tried this on our system and put in debug and sure enough you are 
right.  This doesn't make sense to be honest.

Ron Power
Programmer
Information Services
City Of St. John's, NL
P.O. Box 908
St. John's, NL
A1C 5M2
709-576-8132
rpower@xxxxxxxxxx
http://www.stjohns.ca/
___________________________________________________________________________
Success is going from failure to failure without a loss of enthusiasm. - 
Sir Winston Churchill




"Ellsberry, Steve" <steve.ellsberry@xxxxxxxxxxxx> 
Sent by: rpg400-l-bounces@xxxxxxxxxxxx
2006/01/27 03:15 PM
Please respond to
RPG programming on the AS400 / iSeries <rpg400-l@xxxxxxxxxxxx>


To
"'RPG List'" <rpg400-l@xxxxxxxxxxxx>
cc

Subject
%Trim dilemma






Hey guys,
 
Maybe someone can explain this one to me. 
 
>From the statements below you can see that WSSIMN is defined as 20 bytes
alpha. When the program using this field runs and if WSSIMN is blank the
statement tests as true and all statements within the if group are 
executed.
The idea behind the statement is to allow a "dummy" serial number that
equals '99999999999999999999' to be used for internal testing.  Obviously
the developer can get around it by testing for <> to blank prior to the
%Trim test but my concern is we may have other programs in the field that
are doing the same thing. 
 
Any ideas on why this would test true if Wssimn is blank? If %TRIM removes
leading and trailing blanks and if the entire field is blank, what's being
compared? 
 
 
D  WSSIMN                        20A  
 
C          If      %Trim(Wssimn) = *All'9'
 
 
 
 
 
 

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