delete[] an array of objects

Question

I have allocated and array of Objects

Objects *array = new Objects[N]; 

How should I delete this array? Just

delete[] array; 

or with iterating over the array's elements?

for(int i=0;i<N;i++)     delete array[i]; delete[]; 

Thanks

UPDATE:

I changed loop body as

delete &array[i]; 

to force the code to compile.

Answer 1

Every use of new should be balanced by a delete, and every use of new[] should be balanced by delete[].

for(int i=0;i<N;i++)     delete array[i]; delete[] array; 

That would be appropriate only if you initialized the array as:

Objects **array = new Objects*[N]; for (int i = 0; i < N; i++) {      array[i] = new Object; } 

The fact that your original code gave you a compilation error is a strong hint that you're doing something wrong.

BTW, obligatory: avoid allocating arrays with new[]; use std::vector instead, and then its destructor will take care of cleanup for you. Additionally it will be exception-safe by not leaking memory if exceptions are thrown.

Answer 2

Just delete[] array is sufficient. It is guaranteed that each element of the array is deleted when you delete an array using delete[] operator.