pub unsafe extern "C" fn zhetrd_(
uplo: *mut c_char,
n: *mut c_int,
a: *mut Rcomplex,
lda: *mut c_int,
d: *mut c_double,
e: *mut c_double,
tau: *mut Rcomplex,
work: *mut Rcomplex,
lwork: *mut c_int,
info: *mut c_int,
)