TC_U32_KEY
if (TC_U32_KEY(n->handle) == 0) {
if (TC_U32_KEY(n->handle))
if (TC_U32_KEY(handle) == 0)
if (TC_U32_KEY(ht->handle)) {
if (TC_U32_KEY(handle)) {
if (TC_U32_KEY(n->handle) == 0) {
if (TC_U32_KEY(handle)) {