Ctypes The core ctypes module.Ctypes_primitive_types Ctypes_static Ctypes_structs Ctypes_types PosixTypes Some POSIX types.Signed Types and operations for signed integers.Unsigned Types and operations for unsigned integers.Cstubs Operations for generating C bindings stubs.Cstubs_internals Cstubs_inverted Operations for exposing OCaml code as C libraries.Cstubs_structs