C++ : When does the vptr (pointing to vtable) get initialized for a polymorphic class?

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C++ : When does the vptr (pointing to vtable) get initialized for a polymorphic class?
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C++ : When does the vptr (pointing to vtable) get initialized for a polymorphic class?
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polymorphic : does a C++ class? initialized (pointing When to vptr vtable) for the get



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