shared_ptr dislikes private ctor/dtor in payload class

1) make_shared can’t call a private ctor. If your ctor is private, you have to use

shared_ptr sp(new MyClass); # within your class??

2) If your MyClass dtor is private, you simply can’t hold it in shared_ptr.

#include <memory>
using namespace std;
class C{
  //~C(){cout<<"dtor\n"; } // breaks shared_ptr<C>
  C(){cout<<"ctor\n"; }
  static shared_ptr<C> mk(){
    //shared_ptr<C> sp = make_shared<C>(); //won't compile if ctor is private
    return shared_ptr<C>(new C());
int main(){ shared_ptr<C> sp = C::mk(); }

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s