letsboost::shared_ptr #include <iostream> #include <boost/shared_ptr.hpp> using namespace std; class Hoge { public: void echo(){ cout << "HELLO" << endl; } virtual ~Hoge(){ cout << "BYE" << endl; } typedef boost::shared_ptr<Hoge> Ptr; }; int main() { { Hoge::Ptr a; a = Hoge::P</hoge></boost/shared_ptr.hpp></iostream>…