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c++ Programming Glossary: vftablec++ data alignment /member order & inheritance http://stackoverflow.com/questions/2006504/c-data-alignment-member-order-inheritance are a lot of things people don't understand about how vftables work. The first thing to understand is that classes only store.. thing to understand is that classes only store pointers to vftables not whole vftables. What that means is that no matter how many.. is that classes only store pointers to vftables not whole vftables. What that means is that no matter how many virtual functions..
sizeof class with int , function, virtual function in C++? http://stackoverflow.com/questions/9439240/sizeof-class-with-int-function-virtual-function-in-c sizeof int 4 . H besides the int also has a pointer to the vftable virtual function table see above . The size of this size of.. Why siszeof D is 8 but sizeof E is 16 D only contains the vftable pointer which is apparently 8 bytes on your platform. E also.. 8 bytes on your platform. E also has an int and the vftable is aligned to 8 bytes. So it's something like class E 4 bytes..
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