std::shared_ptr Exception Safety

by 
template<class Y> explicit shared_ptr(Y* p);

[util.smartptr.shared.const]/6 Throws: bad_alloc, or an implementation-defined exception when a resource other than memory could not be obtained.
[util.smartptr.shared.const]/7 Exception safety: If an exception is thrown, delete p is called.

So no, no memory leak.

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