智能指针与STL容器

#include "boost/shared_ptr.hpp" #include #include class A { public: virtual void sing() { std::cout <<"A::sing " < createA() { boost::shared_ptr p(new B()); return p; } int main() { typedef std::vector > container_type; typedef container_type::iterator iterator; container_type container; for (int i=0;i<10;++i) { container.push_back(createA()); } std::cout << "The choir is gathered: /n"; iterator end=container.end(); for (iterator it=container.begin();it!=end;++it) { (*it)->sing(); } system("pause"); }