[Solved] Program crashes on trying to access the key that does not exist in map [duplicate]

Question

The find member function of std::map specializations returns a past-the-end iterator if the key does not exist.

So you need to compare to the container’s end():

 auto f = cnt.find("asdasd");
 if (f != cnt.end()) {
     std::cout << f->second;
 }

Accepted Answer

The find member function of std::map specializations returns a past-the-end iterator if the key does not exist.

So you need to compare to the container’s end():

 auto f = cnt.find("asdasd");
 if (f != cnt.end()) {
     std::cout << f->second;
 }