Re: CPYF behavior

h
Hello Peter,

Assuming that you are running the CPYF commands sequentially then it is because 
the 
crtfile(*yes) in the second example is being ignored since the target file 
exists.  That causes 
the code to follow a different code path.

In the first instance the copy is successful and creates an empty file.

In the second instance the copy fails because ordinarily you would not want to 
copy an empty 
file over a file that contains records.  CPYF does not check if the target file 
contains data.  
If the target file exists and the source file is empty, the copy fails.

With reagrd to the final paragraph, one of the joys of programming is ferreting 
out the 
unobvious!  And it's documented so I get another chance to say RTFM!  All of 
them.

Regards,
Simon Coulter.

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//--- forwarded letter -------------------------------------------------------
> X-Mailer: Microsoft Outlook Express 5.00.2314.1300
> Date: Thu, 30 Dec 1999 12:01:48 -0800
> From: "Peter Dow" <pdow@flashcom.net>
> To: MIDRANGE-L@midrange.com
> Reply-To: MIDRANGE-L@midrange.com
> Subject: CPYF behavior

> 
> Hi,
> 
> After reading Simon Coulter's words on the CPYF command in the RPG-400
> mailing list, perhaps you,  Simon, or someone else can explain why CPYF
> behaves differently regarding an empty "from" file. In the 1st instance,
> CPYF simply gives a completion message, CPC2957:
> 
> crtpf qtemp/test rcdlen(1)
> File TEST created in library QTEMP.
> Member TEST added to file TEST in QTEMP.
> 
> cpyf qtemp/test qtemp/test1 crtfile(*yes) mbropt(*replace)
> Physical file TEST1 created in library QTEMP.
> Member TEST added to file TEST1 in QTEMP.
> No records copied from file TEST in QTEMP.
> 
> 
> While in this instance, it gives the escape message, CPF2817:
> 
> cpyf qtemp/test qtemp/test1 crtfile(*yes) mbropt(*replace)
> Empty member TEST in file TEST in library QTEMP is not copied.
> Copy command ended because of error.
> 
> 
> Just curious.
> 
> Also, thanks for the tip about CPF2817 containing the diagnostic message's
> ID in its message data. This would be more obvious if CPF2817 showed the
> message data in either the 1st or 2nd level text.
> 
> Peter Dow
> Dow Software Services, Inc.
> 909 425-0194 voice
> 909 425-0196 fax

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