'dynamic atexit destructor` (Used by CRT to destroy non-trivial? global objects on program exit) 'dynamic initializer' (Used by CRT entry point to construct non-trivial? global objects) 'eh vector vbase copy constructor iterator' Most of special names are constructor, destructor, operator and internal symbol. Special names are represented as a code with a preceding ?. For example myclass::nested::something becomes Fragment Ī fragment of a name is simply represented as the name with trailing Name Terminator is written in reversed order.Qualification #1: one of: name fragment, name with template arguments, numbered namespace or back reference.Basic name: one of: name fragment or special name.Qualified name consists of the following fragments: Mangled name contains a lot of elements which will be discussed. Type information in data names looks like this: Conditional: CV-class modifier of function, if non-static member function.Type information in function names generally looks like this: The structure of mangled names looks like this: Because all mangled C names start with alphanumeric characters, (at-sign) and _ (underscore), C++ names can be distinguished from C names. The C++ language does not define a standard decoration scheme, so each C++ compiler uses its own.Īll mangled C++ names start with ? (question mark). C++ decoration can become complex (storing information about classes, templates, namespaces, operator overloading, etc.). For example, to correctly link a function it needs its name, the number of arguments and their types. The linker also needs information on each program entity. Names need to be mangled by the compiler to make them distinct before reaching the linker. ![]() The linker relies on unique object names for identification but C++ (and many modern programming languages) allows different entities to be named with the same identifier as long as they occupy a different namespace. ![]() 3.3.4 Complex Type (union, struct, class, coclass, cointerface)Īny object code produced by the compiler is usually linked with other pieces of object code by the linker.
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