delete[] an array of objects

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.

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