class - C++ program crashing (has something to do with with dynamic memory) -

i'm having weird crashing occurs everytime goes loop initialize each position undefined. can shine light on why happening? #include #include #include using namespace std;

class myphonebook { public:     myphonebook(int, string, string, string, string);     myphonebook();     ~myphonebook();      void initialise(int, int, string, string, string, string);     bool search(string&, int);     bool find_free_pos();     void add();      void remove();      void display(int);      friend istream& operator >> (istream& in, myphonebook& ph);     friend ostream& operator << (ostream& out, myphonebook& ph);      private:     int *recordid;      int *status; // -1 no longer @ number, 0 blocked, 1 not blocked, 2 free     string *name, *areacode, *number, *group;     };      int main(int argc, char** argv)      {         cout << "test 1" << endl;         myphonebook *myphbk;                    // pointer point object of myphonebook class         myphbk = new myphonebook[100];          // using dynamic memory          cout << "test 2" << endl;       //just testing          int pos = 0;         for(pos = 0; pos < 100; pos++)          // initializing undefined, , position free (position second parameter sended in)         {             myphbk[pos].initialise( (pos+1) , 2 , "undefined" , "undefined" , "undefined" , "undefined");         }          cout << "test 3" << endl;       //just testing     }  return 0;  void myphonebook::initialise(int recordid_,int status_, string name_, string     areacode_, string number_, string group_) {    //now assign them private member variables    *recordid = recordid_;    *status = status_;    *name = name_;    *areacode = areacode_;    *number = number_;    *group = group_;    //end of assigning } 

does have idea why can't program reach cout << "test 3" << endl part of program without crashing?

since did not paste constructor of myphonebook can guess, problem lines

*recordid = recordid_; *status = status_; 

if did not assign valid address recordid , status in constructor, e.g. by

recordid = new int; status = new int; 

you might want declare member variables simple int.