Thunk is a very useful technology. I talk about three typical uses of thunk in this article:
1. turning callbacks into member functions of classes.
2. providing an interface proxy.
3. supporting virtual functions under multiple inheritance in c++.
Before we start, let's have a general idea of what thunk is. Thunk is generally a piece of machine code that intercepts a client call and modifies the call stack before jumping to the real implementation of the client call.
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