RE: IFS Open

You may use a VARYING field when the called procedure's parameter is
OPTIONS(*STRING) The compiler converts it correctly.
The problem here is probably as Scott suggested, "/dir1/dir2/file.txt   "
is not correct, the trailing blanks need to be trimmed.
In V5R3 there is OPTIONS(*STRING : *TRIM) available to do the blank trimming
on the call itself so you don't have those pesky %TRIMR()'s everywhere.
Too bad they didn't give use OPTIONS(*TSTRING) to make it a little easier to
code when using *STRING parms.
-Bob


-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx]
On Behalf Of Bartell, Aaron L. (TC)
Sent: Tuesday, August 03, 2004 1:04 PM
To: RPG programming on the AS400 / iSeries
Subject: RE: IFS Open

To go along with Scott and Joe's comments I am fairly certain you cannot
use a VARYING field as a parm to a C API.  This is because the first two
chars of the variable contain it's length and since C doesn't support
RPG's version of VARYING length fields it thinks those first two bytes
are part of the file path/name.

I may be wrong, but I struggled with this some time ago and I think that
is what I came up with.

Aaron Bartell


-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] 
Sent: Tuesday, August 03, 2004 12:11 PM
To: rpg400-l@xxxxxxxxxxxx
Subject: IFS Open

When using an IFS open like this (I'm using Scott's prototype):

fd = open('/michael/cattest' : flags);

all is good. However, when I put the same value in a variable (FileName)
and use it like this:

D FileName        S           1024    Varying 
fd = open(FileName : flags);          

I receive an fd of -1 and the message "open() for input: No such path or
directory." I've tried a bunch of different combinations and can't make
it work.

Please help the stoopid guy in the corner. You'll fill your random act
of kindness quotient for the day.

TIA...
-- 
  
  michaelr_41@xxxxxxxxxxxxxx

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