In what scenario might a weak_ptr be particularly useful to prevent? 

  • Memory Leaks 
  • Buffer Overflow 
  • Circular References 
  • Stack Overflow
A weak_ptr is a type of smart pointer that holds a non-owning reference to an object that's managed by shared_ptr. It's particularly useful to prevent circular references which can cause memory leaks because objects reference each other preventing them from being deleted.
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