Terry:

This might be worth enough to me that I break down and create a member 
profile... I've avoided that so far. Thanks for what might be the _only_ 
significant source of info on this.

Tom Liotta

Winchester Terry <terry.winchester@raymondcorp.com> wrote:

>Tom,
>
>I always have a hard time with this myself.  It really
>depends on what programming language your calling.
>Check out the iSeriesNetwork COBOL forum (old News400)
>and search for the word "address". Then choose the first
>couple of posts by Mike Cravtiz, especially the one titled
>"By Value v.s. By Content", its a little old but very
>informative.
>
>Here's the forum:
>http://www.iseriesnetwork.com/Forums/Index.cfm?OCFI=825807&OCFT=62624683&CFA
>pp=19&
>
>Here's a direct link to the post (but it may not work,
>have sent an error report to the webmaster):
>http://www.iseriesnetwork.com/Forums/Search_Results.cfm?CFApp=19#Message5108
>7
>
>Good Luck,
>Terry
>
>> -----Original Message-----
>> From: qsrvbas@netscape.net [mailto:qsrvbas@netscape.net]
>> Sent: Thursday, June 13, 2002 3:49 PM
>> To: cobol400-l@midrange.com
>> Subject: CALL BY xxxx ADDRESS OF?
>>
>>
>> Looking at the CALL verb, I see ILE COBOL allows USING BY
>> xxxx Identifier where xxxx can be REFERENCE, CONTENT or
>> VALUE. I normally wouldn't have a big issue with that, but
>> each of those allows the addition of ADDRESS OF between xxxx
>> and Identifier.
>>
>> If I code:
>>
>>          CALL MyProg USING BY VALUE ADDRESS OF My-Variable
>>
>> how is that different from:
>>
>>          CALL MyProg USING BY VALUE My-Variable
>>
>> or:
>>
>>          CALL MyProg USING BY REFERENCE ADDRESS OF My-Variable
>>
>> or any other variation???
>>
>> I don't see clear discussion in the manuals on this point. I
>> thought I knew the difference between REFERENCE, CONTENT and
>> VALUE; but is ADDRESS OF particularly meaningful for all of
>> REFERENCE, CONTENT and VALUE? Is it different for each?
>>
>> Thanks for any insight.
--
Tom Liotta
The PowerTech Group, Inc.
19426 68th Avenue South
Kent, WA 98032
Phone  253-872-7788
Fax    253-872-7904
http://www.powertechgroup.com



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