/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

2 votes237 views1 answer
MPI_file_open
C++
101 votes345 views6 answers
How to turn int into string c++
C++
0 vote223 views3 answers
Iterator in c++
C++
1 vote216 views1 answer
Stock a file in a vector cpp
C++
0 vote224 views1 answer
Finding no of unique characters in a string c++
C++
0 vote251 views1 answer
Can derived class access base class non-static members without object of the base class
C++
0 vote222 views1 answer
Elements of set c++
C++
0 vote213 views1 answer
Could not find the task c c++ active file
C++
1 vote219 views1 answer
Union of two arrays leetcode
C++
19 votes220 views1 answer
Dev c++
C++