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