pub unsafe extern "C" fn CPXpratio(
env: CPXCENVptr,
lp: CPXLPptr,
indices: *mut c_int,
cnt: c_int,
downratio: *mut f64,
upratio: *mut f64,
downleave: *mut c_int,
upleave: *mut c_int,
downleavestatus: *mut c_int,
upleavestatus: *mut c_int,
downstatus: *mut c_int,
upstatus: *mut c_int,
) -> c_int