pub unsafe extern fn chbgst_(vect: *const c_char, uplo: *const c_char, n: *const lapack_int, ka: *const lapack_int, kb: *const lapack_int, ab: *mut lapack_complex_float, ldab: *const lapack_int, bb: *const lapack_complex_float, ldbb: *const lapack_int, x: *mut lapack_complex_float, ldx: *const lapack_int, work: *mut lapack_complex_float, rwork: *mut c_float, info: *mut lapack_int)