fix topic_sub_map

wangzhengquan

2020-08-10 dc5557c7bb411037002e706cb20df0f71d12e5ee

 src/queue/include/hashtable.h

@@ -31,7 +31,7 @@
 * });
 * 
*/
void hashtable_foreach(hashtable_t *hashtable, hashtable_foreach_cb cb);
void hashtable_foreach(hashtable_t *hashtable, std::function<void(int, void *)>  cb);

// void hashtable_printall(hashtable_t *hashtable);