Function nros_rmw_qos_incompatibility_mask 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn nros_rmw_qos_incompatibility_mask(
    offered: NrosRmwQos,
    requested: NrosRmwQos,
    compatibility: *mut Type,
    clash_mask: *mut u32,
) -> NrosRmwRet

See nros/rmw_entity.h.

Safety

compatibility and clash_mask must be valid for writes when non-NULL.