Function msg_send_8 

pub unsafe fn msg_send_8<R, A, B, C, D, E, F, G, H>(
    obj: *const c_void,
    sel: Sel,
    a: A,
    b: B,
    c: C,
    d: D,
    e: E,
    f_arg: F,
    g: G,
    h: H,
) -> R

Send a message with 8 arguments.

Safety

See msg_send_0 for safety requirements.