pub unsafe extern "C" fn zgttrs_(
trans: *const c_char,
n: *const lapack_int,
nrhs: *const lapack_int,
dl: *const lapack_complex_double,
d: *const lapack_complex_double,
du: *const lapack_complex_double,
du2: *const lapack_complex_double,
ipiv: *const lapack_int,
b: *mut lapack_complex_double,
ldb: *const lapack_int,
info: *mut lapack_int,
)