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Why cant union in C++ have virtual functions -
- sachin.magdum July 22, 20101. virtual functions used with inheritance. unions do not take part in inheritance.
2. all the members of union shares same memory slot. physically base and derived members of derived class object are stored in separate memory locations. union says all my members will share same memory, inhetance says derived members will be stored after base class members hence unions can not take part in inheritance.