C++ Without overloading delete operator, make an object of any of the above classes and delete it without calling destructor or using free()

overloading_delete_opt.cpp

#include <iostream>
using namespace std;

class A {

private: 

public:

    int a = 10;
    A() {
        cout << "A's Constructor is called!" << endl;
    }    
};

void ptr_Deallocate(A* ptr_A) {
    
    delete[] ptr_A;
}

int  main() {

    int size = 5;
    A* ptr_A = new A[size];
    
    ptr_Deallocate(ptr_A);
    
    cout << ptr_A->a; //-- Check for proper deallocation.
    ptr_A = NULL; 
   
    //-- Check for dangling pointer.
    if (ptr_A == NULL) {
        cout << "Pointer A is null!" << endl;
    }
    else {
        cout << "Pointer A is not null!" << endl;
    }

    return 0;
}