pub unsafe extern "C" fn dlahqr_(
wantt: *const c_int,
wantz: *const c_int,
n: *const c_int,
ilo: *const c_int,
ihi: *const c_int,
H: *mut c_double,
ldh: *const c_int,
wr: *mut c_double,
wi: *mut c_double,
iloz: *const c_int,
ihiz: *const c_int,
z: *mut c_double,
ldz: *const c_int,
info: *mut c_int,
)