Unboxed types and FFI (GHC Users Guide, Section 8.1.1)

The section 8.1.1 of the GHC User's Guide says this: The following unboxed types may be used as basic foreign types (see FFI Addendum, Section 3.2): Int#, Word#, Char#, etc Does this mean that when declaring a foreign function import for a C function int fun(int) I may write foreign import ccall "bla.h fun" fun :: Int# -> Int# instead of using CInt? Are there any examples of using unboxed types with FFI? -- Dimitry Golubovsky Anywhere on the Web