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[Bug-GnuCOBOL] handling of parameters passed BY VALUE Version 3.1 Rc1 vi

From: Bruce Zupek
Subject: [Bug-GnuCOBOL] handling of parameters passed BY VALUE Version 3.1 Rc1 via MinGW
Date: Wed, 6 Jun 2018 16:10:22 -0400
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1

I tripped on this one.
Albeit you can call by value - apparently it is not possible to receive parameters By Value (the called code turtles on the Procedure Division Using.)
/SIMON/VFILE1.COB:96: warning: handling of parameters passed BY VALUE is unfinished; implementation is likely to be changed.

I have a "mixed" case use.
Parameters in CBL_OPEN_VFILE / CLOSE_VFILE are called by reference.
3 of the 4 parameters in CBL_READ_VFILE / WRITE_VFILE are called by Value. 

I can't figure out a Cobol process to resolve this issue - especially if I do not want to change the original application Cobol source.

Any ideas ?
Any guess as to when it BY VALUE will be available by a called program ?

Please advise.
Bruce Zupek

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