Why is the size of this empty class 1 byte?
Code:
class A
{
};
sizeof(A);
ans:- 1 byte
-
Last edited by Frinavale; Sep 16 '14, 04:19 PM. Reason: Added the question posted in the title of the thread to the body of the thread so that code has a purpose. Also added code tags. -
Think about it.
You can always create an object from a class. That means you can take the address of the object. For that to work you need an actual object in memory. A 1 byte memory allocation is the minimum required to acquire an address.Code:class A { }; A obj; A* ptr = &obj;
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