Assume we want to define a version of StrBlob that acts like a value. Also assume that we want to continue to use a shared_ptr so that our StrBlobPtr class can still use a weak_ptr to the vector. Your revised class will need a copy constructor and copy-assignment operator but will not need a destructor. Explain what the copy constructor and copy-assignment operators must do. Explain why the class does not need a destructor.
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