/C++/Assignment operator with pointers c++

Assignment operator with pointers c++

class Array
{
public:
    Array(int N)
    {
         size = N;
         arr = new int[N];
    }

    //destructor
    ~Array()
    {
        delete[] arr;
    }

    //copy constructor
    Array(const Array& arr2)
    {
        size = arr2.size;
        arr = new int[size];
        std::memcpy(arr, arr2.arr, size);
    }

    //overload = operator
    Array& operator=(const Array& arr2) 
    {
        if (this == &arr2)
            return *this; //self assignment
        if (arr != NULL)
            delete[] arr; //clean up already allocated memory

        size = arr2.size;
        arr = new int[size];
        std::memcpy(arr, arr2.arr, size);
        return *this;
    }

private:
    int size;    //array elements
    int *arr;    //dynamic array pointer
};

Source: stackoverflow.com

Similar codes

4 votes103 views1 answer
Get index of value c++
C++
3 votes111 views1 answer
Infinite loop c++
C++
0 vote115 views1 answer
Play audio c++
C++
0 vote101 views6 answers
Iterator on std::tuple
C++
0 vote104 views1 answer
Error uploading arduino code
C++
0 vote125 views1 answer
Grep xargs sed
C++
1 vote99 views1 answer
Eosio parse string
C++
0 vote99 views1 answer
Prevent copy c++
C++
0 vote101 views1 answer
Ue4 endoverlap c++
C++
0 vote95 views1 answer
Visual studio getline not working
C++