What is the virtual table (vtable) mechanism in C++? How does dynamic dispatch work?

What is the virtual table (vtable) mechanism in C++? How does dynamic dispatch work?

题目类型: 技术面试题

这是一道技术面试题，常见于澳洲IT公司面试中。

难度: medium

标签: interviewbit, cpp, topic-specific, c++, systems

参考答案摘要

When a class contains virtual functions, the compiler creates a virtual table, also called a vtable. The vtable is an array of function pointers. Each object of such a class contains a hidden pointer ...

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