Re: an admittedly lazy programmer question...
- From: Mike Pall <mike-1205@xxxxxxxxxx>
- To: luajit@xxxxxxxxxxxxx
- Date: Mon, 28 May 2012 23:34:47 +0200
William Adams wrote:
> Would LuaJIT ffi do anything for me to translate from Luas io to
> this FILE structure? Can I simply do:
>
> fh = io.open(file)
>
> somefunc(fh)
>
> And have it work? Assuming I've defined FILE in some FFI place.
Well, I could make it work. But why? If you're working with the
FFI, you'd call ffi.C.fopen() to get a file descriptor, right?
> Alternatively, I could redefine the function signature:
>
> void somefunc(void *f)
Nope, that doesn't work. The data area of a userdata object is not
the FILE * itself, but it contains a FILE *.
--Mike
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