Function CFStringSetExternalCharactersNoCopy 

pub unsafe extern "C-unwind" fn CFStringSetExternalCharactersNoCopy(
    the_string: Option<&CFMutableString>,
    chars: *mut u16,
    length: CFIndex,
    capacity: CFIndex,
)

👎Deprecated: renamed to CFMutableString::set_external_characters_no_copy

Available on crate feature CFString only.