CODEWITHSUNDEEP
c++memory
Nygen Patricia
Nygen Patricia

Reputation: 229

Delete Dynamic Allocate array inside a class

Class name{
private:
int *ptr=new ptr[10];

public:
//do some thing
~name(){
      delete ptr; //should I do this?
  }
};

After creating this class, if I go out of the scope, should I write a destructor that automatically handles this dynamically allocated integer array?

Upvotes: 0

Views: 1581

Answers (1)

Remy Lebeau
Remy Lebeau

Reputation: 598414

Yes, you must free any memory you allocate. But memory allocated with new[] must be freed using delete[], not delete.

class name {
private:
    int *ptr = new ptr[10];

public:
    //...

    ~name() {
        delete[] ptr;
    }
};

What you should do is use a std::vector or std::array instead, and let it handle the memory management for you.

class name {
private:
    std::vector<int> ptr{10};

public:
    //...
};


class name {
private:
    std::array<int, 10> ptr;

public:
    //...
};

Upvotes: 2

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