boost - Giving up ownership of a memory without releasing it by shared_ptr -

is there way can make shared pointer point different memory location without releasing memory.pointed currently

please consider code:

#include <boost/shared_ptr.hpp> #include <boost/make_shared.hpp> #include <iostream>  int main() {     int *p = new int();     *p = 10;     int *q = new int();     *q = 20;      boost::shared_ptr<int> ps(p);      // leads compiler error     ps = boost::make_shared<int>(q);      std::cout << *p << std::endl;     std::cout << *q << std::endl;     return 0; } 

you can't.

of course can release , reattach, while changing deleter no-op

to honest, looks you'd want

ps = boost::make_shared<int>(*q); 

prints (live on coliru):

0 20