How to clean the code from unused functions of third-party libraries by analyzing dependencies?

Question

C++ / C#

The question arose, is there any analyzer that can "clean up" the code of unclaimed functions by analyzing dependencies?
For example, I use some large library in my program (not a dll, but in the form of a source code), but I use only a certain number of functions from it that depend on some other functions, but still most of the functions remain unused and it will never involved. Manually, this is at least not convenient and time consuming.
So the question arose, how can this be done and can it be done automatically?

Answer 1

Resharper can
https://www.jetbrains.com/help/resharper/Navigatio...