#include <cstdio>
#include <memory>

using namespace std;

shared_ptr<char[]> readSomeData()
{
  shared_ptr<char[]> data(new char[1000]);

  printf("Allocating memory!\n");
  printf("Current copies: %ld\n", data.use_count());
  // Do something to actually put data into the string

  return data;
}

int main(int argc, char* argv[])
{
  //shared_ptr<char[]> z = readSomeData();

  {
    shared_ptr<char[]> x = readSomeData();
    shared_ptr<char[]> y = x;

    y = nullptr;
    printf("In inner scope, current copies: %ld\n", x.use_count());

    printf("In main, current copies: %ld\n", x.use_count());
  }

  printf("All done!\n");

  return 0;
}