important

the following code has a memory leak, why?

Code:

---

class Base
{
public:
virtual void doSomething() = 0;
};
class Derived : public Base
{
public:
virtual void doSomething()
{
// Do the action
}
};
int main(int argc, char[] argv)
{
 Derived* pDerived = new Derived;
Base* pBase = pDerived;
delete pBase;
 return 0;
}

---

Quote:

---

Originally Posted by Kmilano

unfortunately the following attached code contains a memory leak.

---

How did you establish you have a memory leak?

Anyway, the Base class should have a virtual destructor otherwise it's undefined what happens.

https://www.quantstart.com/articles/...d-Memory-Leaks

Quote:

---

Originally Posted by Kmilano

the following code has a memory leak, why?

---

And where is your code snippet? :confused:

How did you find out the leak?
You can find a leak by yourself . Try to use some tools for finding leaks. For example, you can use Visual Leak Detector. This is easy to use, affordable tool. I use a more powerful tool - Deleaker. Or you can use Valgrind for Linux.