pub unsafe extern "C" fn dstevd_(
jobz: *const c_char,
n: *const lapack_int,
D: *mut f64,
E: *mut f64,
Z: *mut f64,
ldz: *const lapack_int,
work: *mut f64,
lwork: *const lapack_int,
iwork: *mut lapack_int,
liwork: *const lapack_int,
info: *mut lapack_int,
)