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  2. C400-L
  3. March 2015

Re: Quickest, easiest way to check for existence of a program, from ILE C?

If 9 times out of 10 the program DOES exist then it's much better to monitor for the exception on the call. That way you also catch other errors such as authority that you might not get with an existence check.

On 3/3/2015 6:40 PM, James H. H. Lampert wrote:
Would anybody happen to know the quickest, easiest way to check (from an ILE C program) whether a program exists, before attempting to call it?

i.e., if C program FOO has:

> #pragma linkage(BAR,OS,nowiden)
> ...
> int BAR(void *);
> ...

and wants to call:

> iretcd = BAR(baz);

but ONLY if BAR actually exists on the system, what's the quickest, easiest, least resource-intensive way to determin whether BAR exists, before calling it?

--
JHHL


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