// comments

#include <iostream>

int* myFunction(void) {
  using namespace std;
  int varOnStack = 1;
  int* varOnHeap = new int;
  *varOnHeap = -1;
  cout << "pointer on heap varOnHeap:" << endl;
  cout << "  value = " << *varOnHeap << endl;
  cout << "  address = " << varOnHeap << endl;
  return varOnHeap;
}

int main(int argc, char** argv) {
  using namespace std;
  int varOnStack = 0;
  cout << "var on stack varOnStack:" << endl;
  cout << "  value = " << varOnStack << endl;
  cout << "  address " << &varOnStack << endl;
  for(int i = 0; i < 4; i++) {
    int anotherVarOnStack = i;
    cout << "var on stack anotherVarOnStack:" << endl;
    cout << "  value = " << anotherVarOnStack << endl;
    cout << "  address " << &anotherVarOnStack << endl;
  }
  //cout << "anotherVarOnStack still on stack? " << anotherVarOnStack << endl;
  //cout << "  what about its address? " << (void*) &anotherVarOnStack << endl;
  int* pointerToVarOnHeap = myFunction();
  cout << "pointer on heap pointerToVarOnHeap:" << endl;
  cout << "  value = " << *pointerToVarOnHeap << endl;
  cout << "  address = " << pointerToVarOnHeap << endl;
  //delete &varOnStack;
  for(int i = 0; i < 5; i++) {
    cout << "pointerToVarOnHeap[" << i << "]: " << endl;
    cout << "  value = " << pointerToVarOnHeap[i] << endl;
    cout << "  address = " << &pointerToVarOnHeap[i] << endl;
  }
  delete pointerToVarOnHeap;
  return 0;
}