Scott,
I'll double check that. I was having issues with the binding (thought the zero was the letter O in Qp0lRenameUnlink) and added that to see if it was the issue and probably forgot to take it out.
-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Scott Klement
Sent: Wednesday, June 23, 2010 2:54 PM
To: RPG programming on the IBM i / System i
Subject: Re: C rename returns -1 but error text says no error exists
Hi Rick,
Reference service program QP0LLIB1 either directly on the compile or
by using a binding directory. This is where the Qp0lRenameUnlink is
exported from.
That's unnecessary. The system will automatically find QP0LLIB1 and bind to it. (Explicitly specifying QP0LLIB1 or a binding directory won't hurt anything -- but it's not necessary.)
The ILE binder will automatically find any system-supplied API. That
is, any API that's part of the IBM i operating system. APIs that are
part of ILE C, Apache, et al, would need to be bound to explicitly.
The IFS APIs are all part the Unix-type APIs category. They are not part of the ILE C Runtime. Therefore, the IFS APIs do not require any special binding.
Frustratingly, the IFS APIs do their error handling via the ILE C __errno function. This was presumably for compatibility with the way Unix does things -- but it's frustrating because it blurs the line
between Unix-type and ILE C Runtime. FWIW, __errno() and strerror()
are part of ILE C, and the APIs that actually manipulate the IFS are not.
In IBM i 6.1, IBM fixed this problem. You no longer need to bind to QC2LE to get __errno and strerror() in 6.1..
Anyway, the routines in the ILE C runtime _are_ APIs. They just are part of ILE C instead of being part of IBM i itself. An API is just a routine that provides a way to interface your program with another application...
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