Re: Out parameters in a function

[dennison@telepath.com (Ted Dennison)]

Stephen Leake <stephen.a.leake.1@gsfc.nasa.gov> wrote in message news:<uelhh0w1d.fsf@gsfc.nasa.gov>...
> If you are trying to import a C function that has this profile, you
> need to use the non-standard GNAT pragma Import_Valued_Procedure; see
> the GNAT user's guide.

First off, you don't know that he's using Gnat. Secondly, I'd advise
*against* using that pragma unless you know for a fact that you'll
never want to use the code with another compiler. Instead, you should
just use an access value (or System.Address). That may seem annoying
and ugly, but its exactly what the C coders who use that routine will
be doing. Its a C interface; there's no sense in polishing a turd.


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