Hello,
I'm building a simple array application, purely for my own personal edu purposes. The exercise is to overload the assignment operator.
I'm having problems with either Array::operator [], or Array::operator =. In the operator = function, the memory addresses are being set equal to the correct values:
0x002f2aa8 = 0;
0x002f2aac = 1;
0x002f2ab0 = 4;
The problem is when the [] operator is used after an assignment. The vales in the above mem addresses have been lost, and replaced with seemingly random values. Can anyone perhaps point out some things I might look into changing?
Here is the code:
Code:#include <iostream>
using namespace std;
////////////////////////////////////////////////////////////////
class Array //models a normal C++ array
{
public:
Array(int s) //one-argument constructor
{
size = s; //argument is size of Array
ptr = new int[s]; //make space for Array
}
~Array() //destructor
{ delete[] ptr; }
int& operator [] (int j) //overloaded subscript operator
{
return *(ptr+j);
}
Array operator = ( Array& a )
{
if ( size != a.size)
exit(1);
for( int i=0; i<size; i++ )
*(this->ptr+i) = a[i];
return *this;
}
private:
int* ptr; //pointer to Array contents
int size; //size of Array
};
////////////////////////////////////////////////////////////////
int main()
{
const int ASIZE = 10; //size of array
Array arr(ASIZE); //make an array
for(int j=0; j<ASIZE; j++) //fill it with squares
arr[j] = j*j;
Array arr2(ASIZE);
arr2 = arr;
// for(j=0; j<ASIZE; j++) //display its contents
// cout << arr[j] << ' ';
// cout << "\n\n";
for(j=0; j<ASIZE; j++) //display its contents
cout << arr2[j] << ' ';
cout << endl;
return 0;
}
