I had this weird thing while I was trying to avoid pointers and just create objects on the stack.

Qt Code: 
  1. #include <iostream>
  2. #include <string>
  3. #include <cstring>
  4. #include <vector>
  5. #include <cstdio>
  6. using namespace std;
  7.  
  8. class Node {
  9.     public:
  10.         string move;
  11.         int state[10];
  12.         Node(const Node &p) {
  13.             move = "";
  14.             memcpy(state,p.state,sizeof(int)*10);
  15.         }
  16.         Node(){
  17.             move = "";
  18.             for(int i = 0;i<10;i++){
  19.                 state[i] = i;
  20.             }
  21.         }
  22.         void AddNode(Node p){
  23.             this->childNode.push_back(p);
  24.         }
  25.         Node GetChild(int i) {
  26.            return childNode[i];
  27.         }
  28.         int GetCount() {
  29.             return this->childNode.size();
  30.         }
  31.     protected:
  32.         vector<Node> childNode;
  33. };
  34.  
  35. class Move {
  36. public:
  37.     Move() {
  38.  
  39.     }
  40.     void run() {
  41.         Node n;
  42.         n.move = "A100";
  43.         operate(n);
  44.     }
  45.  
  46.     void operate(Node &n) {
  47.  
  48.         Node c(n);
  49.         c.move = "B100";
  50.         n.AddNode(c);
  51.         cout << "Output : " << endl;
  52.         Node t = n.GetChild(n.GetCount() - 1); 
  53.         //Node t = n.childNode[0];   
  54.         for(int i = 0;i<10;i++)
  55.                cout << t.state[i];
  56.  
  57.  
  58.         cout << endl << t.move; // doesn't display B100 ????
  59.  
  60.     }
  61.  
  62. };
  63.  
  64. int main(int argc,char** argv) {
  65.  
  66.     Move m;
  67.     m.run();
  68.     return 0;
  69. }
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Here is a sample of something that I'm trying to do. My question is why isn't B100 move displayed ? Do I need an assignment operator in the Node class ? I believed push_back takes references and that the node with move value B100 should be stored in the vector. Correct state array is stored but the move string is not, any suggestions ?