Delete NULL but no compile error

Question

I\'m confused why the following C++ code can compile. Why does a call to delete the method of 0 not produce any error?!

int *arr = NULL;     // or if I use 0         


        

Answer 1

The C++ language guarantees that delete p will do nothing if p is equal to NULL.

For more info, check out Section 16.8,9 here: