Tag: vtable
3 posts
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"undefined reference to vtable": What the Linker Is Telling You and How to Fix It
Why GCC reports "undefined reference to vtable for X": the key function rule, undefined virtual destructors, unlinked .cpp files and Qt moc, and each fix.
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C++ VTable Explained: Virtual Function Tables & Dynamic Dispatch
How C++ vtables and vptrs implement polymorphism: indirect calls, object size, multiple inheritance costs, the missing-virtual-destructor leak, and optimization with final and NVI.
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C++ Virtual Functions and vtables: How Dynamic Binding Works
How C++ virtual functions work under the hood: vtables, vptrs, static vs dynamic binding, override and final, pure virtual, object slicing.