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Because, as I seem to remember, you can't specify a variable as either
of the last 2 parameters in the %dec BIF. And the length (actually max
width) of each of the columns is determined only after passing thru the
.csv file once to interpret the attributes (max width, #of decimals,
etc.) of each column.

Or am I wrong about the last 2 parms of %dec?

Arthur J. Marino
RockTenn Corporation
(631) 297-2276

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Alan Campin
Sent: Wednesday, March 25, 2009 11:23 AM
To: RPG programming on the IBM i / System i
Subject: Re: Using an Expression to control a FOR loop

Why not simply use a %EditC?

ColDta = %EditC(%Dec(COLDTA:5:0):'X');



On Wed, Mar 25, 2009 at 9:01 AM, Arthur Marino <amarino@xxxxxxxxxxxx>
wrote:

This FOR loop is supposed to prefix the 'varying' character field
"coldta" with zeros so as to right-justify the value in the column's
defined field length. "i" is defined as 5i 0.

for i = 1 to (cwdth(#col)-%len(coldta));
coldta = '0' + coldta;
endfor;

Debug tells me:
cwdth(#col) = 5 (the column's defined field length)
coldta = '134' (%len(coldta)=3, I inserted an explicit calc to be
sure)

"coldta" should wind up being '00134'.

I expect the loop to iterate twice (5 - 3). Yet, it does so only ONCE.
After the 'endfor' i = 2, not 3 as I'd expect, and coldta contains
0134
(only 4 bytes).

When I insert the calc "len = cwdth(#col)-%len(coldta);" and replace
the
expression with "for i = 1 to len", it iterates twice, i = 3 after the
'endfor', and coldta=00134 (5 bytes).

Is there something I'm not getting about the evaluation of the
expression in the FOR loop? It certainly appears that 5 - 3 results in
1, not 2.

Thanks.

Arthur Marino

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This message, including its attachments, constitutes an electronic communication within the meaning of the Electronic Communications Privacy Act, 18 U.S.C. Section 2510. This message is the confidential property of RockTenn, and disclosure is strictly limited to recipients intended by the sender. Unless previously authorized in writing, this message does not constitute an offer, acceptance, or agreement of any kind. This message may contain confidential attorney-client privileged information and attorney work product. If you are not the intended recipient, or responsible for delivering e-mail to the intended recipient, you are advised that use, dissemination, forwarding, printing, or copying of this message is STRICTLY PROHIBITED. If you receive this message in error, please notify the sender immediately by return e-mail and delete the message entirely from your system. Sender is not liable for damage caused by viruses transmitted with this message, or errors or omissions in content caused by transmission.
(c) RockTenn, Norcross, GA.

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