Using Macro Template In Macro Expansion: C Program

https://technotip.com/8429/using-macro-template-in-macro-expansion-c-program/

In this video tutorial lets see how we can make use of a macro template in a macro expansion.

Objective We define PI in a macro, and then we use PI in expansion of another macro.

We shall also modify the same program to make use of constant M_PI present in math.h library file instead of macro template PI.

Note: M_PI is also a macro inside math.h library file.

C Programming Interview / Viva Q&A List https://technotip.com/6378/c-programming-interview-viva-qa-list/

C Programming: Beginner To Advance To Expert https://technotip.com/6086/c-programming-beginner-to-advance-to-expert/ ... https://www.youtube.com/watch?v=s3bMxi6Isu8