pub unsafe extern fn LAPACKE_ctgexc_work(matrix_layout: c_int, wantq: lapack_logical, wantz: lapack_logical, n: lapack_int, a: *mut lapack_complex_float, lda: lapack_int, b: *mut lapack_complex_float, ldb: lapack_int, q: *mut lapack_complex_float, ldq: lapack_int, z: *mut lapack_complex_float, ldz: lapack_int, ifst: lapack_int, ilst: lapack_int) -> lapack_int