Function CPXNETgetarcname 

pub unsafe extern "C" fn CPXNETgetarcname(
    env: CPXCENVptr,
    net: CPXCNETptr,
    nnames: *mut *mut c_char,
    namestore: *mut c_char,
    namespc: c_int,
    surplus_p: *mut c_int,
    begin: c_int,
    end: c_int,
) -> c_int