1 #include <memory> 2 3 struct Foo { 4 int a; 5 }; 6 main(int argc,char ** argv)7 int main(int argc, char **argv) { 8 std::shared_ptr<Foo> s(new Foo); 9 s->a = 3; 10 std::weak_ptr<Foo> w = s; 11 return s->a; // Set break point at this line. 12 } 13