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std::shared_ptr

std::shared_ptr

Defined in header <memory> 
template< class T > class shared_ptr;
 (since C++11)

std::shared_ptr is a smart pointer that retains shared ownership of an object through a pointer. Several shared_ptr objects may own the same object. The object is destroyed and its memory deallocated when either of the following happens:

  • the last remaining shared_ptr owning the object is destroyed;
  • the last remaining shared_ptr owning the object is assigned another pointer via 登录查看完整内容