In C++ how is function overloading typically implemented?

Question

If there is no function overloading, the function name serves as the address of the function code, and when a function is being called, its address is easy to find using its

Answer 1

The compiler can look at the call, and match that against the known existing overloaded implementations, and pick the right one. No need for a dynamic table, it's all perfectly doable statically at compile-time.

Update: removed my attempt at illustrating the concept by showing differently-named functions that the compiler can choose between.

Answer 2

Even if no function overload, compilers usually mangle function and variable names. It is called name mangling. It happens in both C and C++. Function name can be decorated by notably (1) calling convention, (2) C++ function overloading, (3) class member function.

GNU binutil c++filt can undecorate this mangled name, and in Windows, there is UnDecorateSymbolName