Modifying existing DSP

Hello! I am currently trying to modify the waveshaper DSP through C++ as an experiment, in order to learn how the DSP in UE4 function. After looking through the files for a while, I found the FWaveShaper() constructor and the ~FWaveShaper() deconstructor functions. Is this where the functionality of the DSP is located, or not? If yes, how can I access these functions?

To clarify: my knowledge in C++ is limited, so pardon me if I say or ask something weird or basic.