Function lapacke_sys::LAPACKE_dspevd

pub unsafe extern "C" fn LAPACKE_dspevd(
    matrix_layout: c_int, 
    jobz: c_char, 
    uplo: c_char, 
    n: lapack_int, 
    ap: *mut c_double, 
    w: *mut c_double, 
    z: *mut c_double, 
    ldz: lapack_int
) -> lapack_int