What happens if you do not define a destructor in the class declaration? Nothing

Question

What happens if you do not define a destructor in the class declaration?

Nothing, a destructor is not always needed

You get an error message when you attempt to compile your program

One is created for you that does absolutely nothing

One is created for you that deallocated pointers as necessary, but otherwise it would do nothing

Nothing, a destructor is not always needed

You get an error message when you attempt to compile your program

One is created for you that does absolutely nothing

One is created for you that deallocated pointers as necessary, but otherwise it would do nothing

Explanation / Answer

Destructors are needed to be defined in the following situations

1) when the object gets destroyed and if there is need to perform other actions like deallocating memory for variable allocated using new operator rather than destroying all the class members

2) if there is need to destroy objects through base class pointer

So if above situations are not required, then option (a) is correct answer

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