pub unsafe extern "C" fn basiclu_obj_maxvolume(
obj: *mut basiclu_object,
ncol: lu_int,
Ap: *const lu_int,
Ai: *const lu_int,
Ax: *const f64,
basis: *mut lu_int,
isbasic: *mut lu_int,
volumetol: f64,
p_nupdate: *mut lu_int,
) -> lu_int