https://manpages.ubuntu.com/manpages/jammy/man1/arm-linux-gnueabihf-cpp-11.1.html
Ubuntu Manpage: cpp - The C Preprocessor
the cubuntumanpagecpppreprocessor
https://www.w3schools.com/c/c_macros.php
C Preprocessor and Macros
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, PHP, Python, Bootstrap, Java and...
c preprocessormacros
https://manpages.ubuntu.com/manpages/jammy/man1/x86_64-linux-gnux32-cpp-11.1.html
Ubuntu Manpage: cpp - The C Preprocessor
the cubuntumanpagecpppreprocessor
https://gcc.gnu.org/onlinedocs/cpp/Object-like-Macros.html
Object-like Macros (The C Preprocessor)
Object-like Macros (The C Preprocessor)
the cobjectlikemacrospreprocessor