Declaring Destructors Virtual

Declaring Destructors Virtual

Writing basic classes needs no more definition from the programmer than just declaring a few member functions and variables. But, what if you needed to design a class that was derived from other classes and you wanted to invoke polymorphism with the class instantiation? You would always need to declare the destructor virtual, no exceptions. Failure to do so causes your program to create a memory leak. Rule of the thumb: Always declare destructors virtual when deriving.

For example:

 class SomeClass {public:   SomeClass();   virtual ~SomeClass();private:   // data here}

See also  How to Avoid Money Transfer Scams  

About Our Editorial Process

At DevX, we’re dedicated to tech entrepreneurship. Our team closely follows industry shifts, new products, AI breakthroughs, technology trends, and funding announcements. Articles undergo thorough editing to ensure accuracy and clarity, reflecting DevX’s style and supporting entrepreneurs in the tech sphere.

See our full editorial policy.

About Our Journalist