pub unsafe extern "C" fn dstevx_(
jobz: *const c_char,
range: *const c_char,
n: *const lapack_int,
D: *mut f64,
E: *mut f64,
vl: *const f64,
vu: *const f64,
il: *const lapack_int,
iu: *const lapack_int,
abstol: *const f64,
m: *mut lapack_int,
W: *mut f64,
Z: *mut f64,
ldz: *const lapack_int,
work: *mut f64,
iwork: *mut lapack_int,
IFAIL: *mut lapack_int,
info: *mut lapack_int,
)