Question

Which cases among the following produces the undefined result?

(a) delete [] on an independent object

(b) delete on an object array

(c) delete [] on an object and delete on object array

(d) Undefined result is never produced

The question was posed to me in examination.

This key question is from Delete Operator topic in chapter Memory Allocation & Scope of Variable of Object Oriented Programming

Answer 1

Right answer is (c) delete [] on an object and delete on object array

Explanation: The undefined result is always produced when we try to use delete [] with a single object. Because the type of deletion mismatches. Same in case where we try to apply delete to an object array.