469                       const Py_UNICODE **data, Py_ssize_t datalen,  in multibytecodec_encode()  argument
475     if (datalen == 0 && !(flags & MBENC_RESET))  in multibytecodec_encode()
481     buf.inbuf_end = buf.inbuf_top + datalen;  in multibytecodec_encode()
483     if (datalen > (PY_SSIZE_T_MAX - 16) / 2) {  in multibytecodec_encode()
488     buf.outobj = PyString_FromStringAndSize(NULL, datalen * 2 + 16);  in multibytecodec_encode()
550     Py_ssize_t datalen;  in MultibyteCodec_Encode()  local
571     datalen = PyUnicode_GET_SIZE(arg);  in MultibyteCodec_Encode()
583                     (const Py_UNICODE **)&data, datalen, errorcb,  in MultibyteCodec_Encode()
590     return make_tuple(r, datalen);  in MultibyteCodec_Encode()
607     Py_ssize_t datalen, finalsize;  in MultibyteCodec_Decode()  local
613     datalen = pdata.len;  in MultibyteCodec_Decode()
621     if (datalen == 0) {  in MultibyteCodec_Decode()
629     buf.inbuf_end = buf.inbuf_top + datalen;  in MultibyteCodec_Decode()
630     buf.outobj = PyUnicode_FromUnicode(NULL, datalen);  in MultibyteCodec_Decode()
665     return make_tuple(buf.outobj, datalen);  in MultibyteCodec_Decode()
738     Py_ssize_t datalen, origpending;  in encoder_encode_stateful()  local
754     datalen = PyUnicode_GET_SIZE(unistr);  in encoder_encode_stateful()
758         if (datalen > PY_SSIZE_T_MAX - ctx->pendingsize) {  in encoder_encode_stateful()
763         inbuf_tmp = PyMem_New(Py_UNICODE, datalen + ctx->pendingsize);  in encoder_encode_stateful()
770             Py_UNICODE_SIZE * datalen);  in encoder_encode_stateful()
771         datalen += ctx->pendingsize;  in encoder_encode_stateful()
778     inbuf_end = inbuf + datalen;  in encoder_encode_stateful()
781                     (const Py_UNICODE **)&inbuf, datalen,  in encoder_encode_stateful()