There have been several proposed solutions to the dangling-​­pointer problem. Among these are tombstones in which every ­heap-​­dynamic variable includes a special cell, called a tombstone, that is itself a pointer to the heap-​dynamic variable.  The actual pointer variable points only at tombstones and never to ­heap-​­dynamic variables. When a ­heap-​­dynamic variable is deallocated, the tombstone remains but is set to null, indicating that the heap-​­dynamic variable no longer exists.   True Or False

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