About shared_ptr and weak_ptr

Question

I code a simple container with shared_ptr. I want to print the elements it has. I found both shared_ptr and weak_ptr can do the job and won't cause memory leak (I think?). Which is prefered? Or is there a way better than any other?

https://code.sololearn.com/c63mwyD128VG

Answer 1

Hi. In this case you don't need weak_ptr, shared_ptr is well enough. You should use weak_ptr if you have 2 shared_ptr that point to each other. There is a good example https://riptutorial.com/cplusplus/example/1673/sharing-with-temporary-ownership--std--weak-ptr-

Answer 2

I think you don't use weak_ptr because shared is enough.
https://code.sololearn.com/cSykNJpe6fsZ/?ref=app