Function CPXgetcallbackpseudocosts 

pub unsafe extern "C" fn CPXgetcallbackpseudocosts(
    env: CPXCENVptr,
    cbdata: *mut c_void,
    wherefrom: c_int,
    uppc: *mut f64,
    downpc: *mut f64,
    begin: c_int,
    end: c_int,
) -> c_int