C Preprocessor Operator: defined

https://technotip.com/8591/c-preprocessor-operator-defined/

In this video tutorial lets see how to use preprocessor operator "defined" in C programming language.

How Does ‘defined’ preprocessor operator work? defined preprocessor operator can only be used with #if and #elif directives.

If the Macro name passed to define is actually defined, then it returns true or else it’ll return false.

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=IDiV22rMPBk