const char MKLDNN_API *mkldnn_prop_kind2str(mkldnn_prop_kind_t v);
const char MKLDNN_API *mkldnn_prim_kind2str(mkldnn_primitive_kind_t v);
const char MKLDNN_API *mkldnn_alg_kind2str(mkldnn_alg_kind_t v);
+const char MKLDNN_API *mkldnn_rnn_direction2str(mkldnn_rnn_direction_t v);
#ifdef __cplusplus
}