[Solved] [] operator in std::map is giving me segmentation fault [closed]

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Maybe your myMap is no longer accessible. For instance, it might be a reference to a deleted pointer, or, much more probable, a member variable of an already deleted class:

class MyClass {
  public:
    selfInsert(std::string myKey) {
      if(!myKey.empty()) {
        myMap[myKey] = this;
      }
    }

  private:
    std::map<std::string, myClass*> myMap;
}

int main()
{
  MyClass *a = new MyClass();
  delete a;
  a->selfInsert();
}

solved [] operator in std::map is giving me segmentation fault [closed]