Query on use_count of shared pointer

Question

Hi

Refer code below:
https://www.sololearn.com/compiler-playground/cnwgbEXzqv7E

I have a confusion on last line's output. Pointer printed is correct as it is matching with pObj2 raw pointer. Then why count is still 2? Isn't it expected to be 1?
https://code.sololearn.com/cnwgbEXzqv7E/?ref=app

Answer 1

your expectation is wrong.

there are two shared_ptr objects to the "clsTest(2)" :

1- the assignment to "m_pObj" inside "setReportee" method.
2- a temporary created by the calling method "getReportee". // the temporary is destroyed at the of the calling method and ref count decremented to 1.

here is an example : https://www.sololearn.com/compiler-playground/cqThQoTLtCI2

Answer 2

Thanks.

I am getting count as 1 if

shared_ptr<clsTest> getReportee()
Is changed to
shared_ptr<clsTest>& getReportee()