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C++ | new and delete | Question 4
  • Last Updated : 13 Sep, 2013

What happens when delete is used for a NULL pointer?

int *ptr = NULL;
delete ptr; 

(A) Compiler Error
(B) Run-time Crash
(C) No Effect

Answer: (C)

Explanation: Deleting a null pointer has no effect, so it is not necessary to check for a null pointer before calling delete.

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