Function CPXmultiobjchgattribs 

pub unsafe extern "C" fn CPXmultiobjchgattribs(
    env: CPXCENVptr,
    lp: CPXLPptr,
    objind: c_int,
    offset: f64,
    weight: f64,
    priority: c_int,
    abstol: f64,
    reltol: f64,
    name: *const c_char,
) -> c_int