#include <iostream>

#include <string>

#include <cstdlib>



std::string ReturnFoo(void) {

  std::string x("foo");

  return x;  // the return makes a copy

}



int main(int argc, char **argv) {

  std::string a("hello");

  std::string b(a);  // copies a to b



  // Copy return value into b.

  b = ReturnFoo();



  return EXIT_SUCCESS;

}