On 11-05-02 05:31 PM, Huynh Huu Long wrote:
Big thanks, that works for me as well. Doesn't GHC check whether a
type is allowed (like CInt,...) or not (like Bool,...)?
No, it doesn't, since version 6.10.1:
http://www.haskell.org/ghc/docs/6.10.1/html/users_guide/ffi-ghc.html#glasgow-foreign-headers
As it happens, FFI requires translating Haskell Bool from C int
(unlikely to be 1 byte), while GCC translates C++ bool to 1 byte. At a
suitable moon phase and planet alignment (or data alignment), mixing up
an int with a byte will be funny.
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