RE: C rename returns -1 but error text says no error exists

[<Rick.Chevalier@xxxxxxxxxxxxxxx>]

Scott,

I thought I was calling a C function not an API since I got the function from the C runtime function reference.  I must have skipped over the reference to the API's.

I think you are the second one to mention a prototype from Sharon but I must not have gotten that reply.  I see one with an example call but not a prototype.

Thanks for the example of using the API's.  I have been trying to read through the documentation and give them a try but have had too many interruptions so far today.

Rick

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Scott Klement
Sent: Wednesday, June 23, 2010 11:22 AM
To: RPG programming on the IBM i / System i
Subject: Re: C rename returns -1 but error text says no error exists

Hi Rick,

>  d Rename          pr            10i 0 ExtProc('rename')
>  d  OldFile                        *   Value
>  d  NewFile                        *   Value

Okay, so Simon was exactly right in his guess about what you were doing
wrong...    Excellent intuition, Simon!

> I am curious about your assertion that the rename function maps
> differently depending on how the program is compiled. I did spend time
> in the C Run-time Library Functions manual yesterday before posting
> but I don't remember seeing anything about changing the behavior based
> on the compile.  I'll check again.

Here's a link to the Information Center page:
http://publib.boulder.ibm.com/infocenter/iseries/v5r4/topic/apis/renamefs.htm

the very first words on the page:

    The rename() function can be defined to be either
    Qp0lRenameUnlink() or Qp0lRenameKeep(), depending upon the
    definitions of the _POSIX_SOURCE and _POSIX1_SOURCE macros . . .


> Would I be better off using the API?

You _are_ using the API!  (Or trying to.)   What did you think you were
calling?!

Anyway, it appears Sharon has already posted a prototype you can use...
so your problem should be solved...    But, FWIW, here's what I have
coded in my IFSIO_H copy book:

       /if defined(RENAMEUNLINK)
      D rename          PR            10I 0 ExtProc('Qp0lRenameUnlink')
      D   old                           *   Value options(*string)
      D   new                           *   Value options(*string)
       /else
      D rename          PR            10I 0 ExtProc('Qp0lRenameKeep')
      D   old                           *   Value options(*string)
      D   new                           *   Value options(*string)
       /endif

You can get the whole copy book with all of the IFS API definitions here:
http://www.scottklement.com/presentations/IfsSources.zip
--

Privileged and Confidential.  This e-mail, and any attachments there to, is intended only for use by the addressee(s) named herein and may contain privileged or confidential information.  If you have received this e-mail in error, please notify me immediately by a return e-mail and delete this e-mail.  You are hereby notified that any dissemination, distribution or copying of this e-mail and/or any attachments thereto, is strictly prohibited.