In void getData() , How can I access the memory location returmed by void* pointer?

Question

when I try to enter elements through getData() function, I get error segmentation fault(core dumped). I am not able to enter elements into array. I am not able to understand why i cannot access the memory location returned by void* into Class type. size of *parr is 4 bytes, still I cannot data into that memory location???

#include<iostream>
#include<cstdlib>
using namespace std;

class Array
{
int *arr;
public:
void* operator new(size_t size)
{
    void *parr=::new int[size];
    //cout<<sizeof(parr);
    return parr;
}
void operator delete(void *parr)
{
    ::delete (int*)parr;
}
void getData()
{
    cout<<"Enter the elements";
    for(int i=0;i<5;i++)
        cin>>arr[i];
}
void showData()
{
    cout<<"Array is:\n";
    for(int i=0;i<5;i++)
        cout<<arr[i];
}

};

int main()
{
Array *A=new Array;
A->getData();
//A->showData();
(*A).showData();
delete A;
return 0;
}

Answer 1

What you probably meant to do instead of overloading the new and delete operators for class Array , is to write appropriate constructor and destructor functions:

class Array {
    int *arr;
public:
    Array(size_t size) : arr(new int[size]) {
    }
    ~Array() {
        delete arr;
    }
    // ...
};