declaring C enum types

[Keith Wansbrough]

> 
> >     - If not, then how should enum values be declared in the FFI?
> 
> What you need to do is run a little autoconf-like program which
> constructs a program containing a suitable example, runs it through a
> C compiler and tells you what's going on.
> 
> hsc comes very close but I'm not certain if it does exactly what you
> need.  If not, compiling and running this program should tell you:

Hmm, careful.  The C compiler is free to be clever, and use a char if there are <=256 elements in the enum, and short or int otherwise.  You want to know the size of your particular enum, not any random enum.

(betraying my age, but didn't Turbo C do this?)

--KW 8-)
-- 
Keith Wansbrough <kw217 at cl.cam.ac.uk>
http://www.cl.cam.ac.uk/users/kw217/
University of Cambridge Computer Laboratory.