C++ Destructors

Question

Hey,
How come should I make destructors for my classes?
and what should I write in the destructors?

~MyClass() {
// what to write?
}

Answer 1

Yahel,
It's just how I see it. Keep the door open for expert opinions 👍

Answer 2

Ipang, so assume i only have a std::string and an int in my class; should I not have a destructor?
and if i have a Heap allocated array (new int[]); should I type: delete[] arr; in the destructor?

is that it?

Answer 3

I think std::string is implemented with its own logic for clean-up chores.

Yes if the int[] is defined with `new`

Answer 4

Ipang, Thanks :)

Summary:
If the class contains Heap Allocated members - Make sure to delete them in the Destructor.
Stack Allocated members will get deleted by themselves when they are out of scope...

Answer 5

Use a destructor when your class contains dynamically allocated data, you can deallocate the memory that was used for the data inside the destructor.