Design Problem: Thread safety of std::map

Question

I am using std::map to implement my local hash table, which will be accessed by multiple threads at the same time. I did some research and found that std::map is not thread

Answer 1

From what I can see, a similar question has been answered here, and the answer includes the explanation for this question also, as well as a link explaining the thread safety in more details.

Thread safety of std::map for read-only operations