Can someone guide me of using stub functions

[TechEnthusiast]

I want to know what is stub functions and how they get replaced when shared library is linked and the shared library has same function names

[Handy Andy]

Hello TechEnthusiast,

I believe this link will explain everything you need.
https://www.google.com/#safe=strict&q=c%2B%2B+stub+function

Not sure what you mean by

replaced when shared library is linked and the shared library has same function names

Hope that helps,

Andy