pub unsafe fn tuplehash_create(
arg_ctx: MemoryContext,
arg_nelements: uint32,
arg_private_data: *mut c_void,
) -> *mut tuplehash_hash
pub unsafe fn tuplehash_create(
arg_ctx: MemoryContext,
arg_nelements: uint32,
arg_private_data: *mut c_void,
) -> *mut tuplehash_hash