#include<iostream>
#include<memory>       /* requires -std=c++14 */
using namespace std;

void f(int x,int y) {
  int z = x;
  x = y;
  y = z;
  //
}

void f2(int* x, int *y) {
  int z = *x;
  *x=*y;
  *y=z;
}


constexpr int zz() {
  int x = 0;
  while (x<5) x++;
  return x;
}

struct account {
  double balance;
  account(double b) : balance{b} {}
  void transaction(double amt) {
    if (balance + amt >0 ) balance += amt;
  }
  double inquiry() { return balance; }
};

// STATIC (compile time) versus DYNAMIC (runtime)
int main() {
 
  account a1(500);
  account* a2 = new account(600);
  unique_ptr<account> a3 = make_unique<account>(800);
  a3 = make_unique<account>(860);
  unique_ptr<account> a3b = move(a3);
  shared_ptr<account> a4 = make_shared<account>(900);

  delete a2;
  /*
  const int z = zz();
  cout << 1/(z-5);

  int x=1, y=2;
  //f(x,y);
  f2(&x,&y);
  cout << x << " and " << y << endl;

  int A[10];
  int B[20];

  for(int i = 0; i<15000;i++) i[A] = 99999;  // i[A] == *(i+A) == A[i]
  for(int x:A) cout << x << " ";
  cout << endl << B[1] << endl;
  */
}