map erase issue

[dophine]

Hi,

Suppose there is a map (key:integer, value: object) which is not empty as below,
I want to know if the object is still available after erase?

map<int,string> mymap;
        mymap[0] = "sssss";
        map<int,string>::iterator itr = mymap.find(0);
        string& s = itr->second;
        //or string* s = &(itr->second);
        mymap.erase(0);
        printf("RRR %s\n", s.c_str());

Regards,
Dophine

[cire]

No it's not still available, so your call to s.c_str() results in undefined behavior.