Getting constants from #defines
reid at cs.utah.edu
Wed Jun 26 18:45:36 EDT 2002
> I was expecting something like
> foreign import ccall unsafe "static ncurses.h ERR" cERR :: CInt
> to allow me to access the value of ERR (a #define) as cERR.
In case you're wondering _why_ this doesn't work, it's because we'd
like to be able to implement the ffi by dlopening a bunch of .o, .a
and .so files and looking up symbols in them - with no C compiler
anywhere in the picture. IIRC, this is how ghci worked at one stage -
not sure if it still does.
alastair at reid-consulting-uk.ltd.uk
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