#include <iostream>
#include <string>
std::string foo()
{
std::string s("rvo!");
std::cout << "address: " << (void *)(&s) << std::endl;
return s;
}
int main()
{
const std::string s = foo();
std::cout << "address: " << (void *)(&s) << std::endl;
std::cout << s << std::endl;
return 0;
}