Question

Delete operator _________________

(a) Can be used on pointers with null value

(b) Can be used on pointers with void value

(c) Can be used on pointer with value 0

(d) Can be used on pointer with any value

This question was addressed to me in a job interview.

My query is from Delete Operator topic in division Memory Allocation & Scope of Variable of Object Oriented Programming

Answer 1

The correct option is (c) Can be used on pointer with value 0

To explain: The delete operator can be used on pointers with the value 0. This actually means that when new operator fails and return value 0 then deleting the result of failed new remains harmless. Hence the deletion is possible.