leveldb_sys::leveldb_comparator_create

pub unsafe extern fn leveldb_comparator_create(state: *mut c_void, destructor: extern fn(*mut c_void), compare: extern fn(*mut c_void, *const c_char, size_t, *const c_char, size_t) -> c_int, name: extern fn(*mut c_void) -> *const c_char) -> *mut leveldb_comparator_t