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A decorated name for a C++ function contains the following information:
- The function name. 
- The class that the function is a member of, if it is a member function. This may include the class that encloses the function's class, and so on. 
- The namespace the function belongs to (if it is part of a namespace). 
- The types of the function's parameters. 
- The calling convention. 
- The return type of the function. 
The function and class names are encoded in the decorated name. The rest of the decorated name is a code that has internal meaning only for the compiler and the linker. The following are examples of undecorated and decorated C++ names.
| Undecorated name | Decorated name | 
|---|---|
| int a(char){int i=3;return i;}; | ?a@@YAHD@Z | 
| void __stdcall b::c(float){}; | ?c@b@@AAGXM@Z |