how to release the memory of a shared pointer?

Question

We can do it on unique pointer. But how to do it on shared pointer? If I do reset, the memory is deleted.

shared_ptr<int> p(new int(10));
int* q = p.release(); //???

You can't release the memory unless the reference count is 1. The best you can hope for is reducing the reference count. — juanchopanza, Aug 06 '14 at 21:10
`p = nullptr`, or `p = NULL`, or `p = {}`, or `p.reset()`. But this won't release the underlying _memory_ if there are other references to it. — jweyrich, Aug 06 '14 at 21:10

score 1 · Answer 1 · answered Aug 06 '14 at 21:10

1

You can't do it, because there can be other shared_ptr<int> objects referring to the same int.

answered Aug 06 '14 at 21:10

usta

1 Answers1