Function lapacke_sys::LAPACKE_dgttrf

pub unsafe extern "C" fn LAPACKE_dgttrf(
    n: lapack_int, 
    dl: *mut c_double, 
    d: *mut c_double, 
    du: *mut c_double, 
    du2: *mut c_double, 
    ipiv: *mut lapack_int
) -> lapack_int