Virtual function table pointer No.

Transfer from  https://blog.csdn.net/xiaxzhou/article/details/76576516

 

Said very thorough understanding virtual pointer for

Members of the class of functions:

Summary: Ordinary Inheritance: no new sub-class virtual function table, but his own father put on the virtual function virtual function table

　　　Virtual Inheritance: subclasses will be a vbptr

　　　　　　　    A new sub-class virtual function table, to put their own virtual function, virtual function table pointer of the parent class will inherit

 

Class data members:

Summary: Ordinary Inheritance: very simple. . .

　　　Virtual inheritance: consider the good diamond inheritance

　　　Aspects of the issue size, alignment purely on memory and other considerations