#include <iostream>
#include <string>

using std::cout;
using std::endl;
using std::move;
using std::string;

string ReturnFoo(void) {
  string x("foo");
  return x;  // this return might copy
}

int main(int argc, char **argv) {
  string a("hello");

  // moves a to b
  string b = move(a);
  cout << "a: " << a << endl;
  cout << "b: " << b << endl;

  // moves the return value into b
  b = move(ReturnFoo());
  cout << "b: " << b << endl;

  return EXIT_SUCCESS;
}