Preprocessor

Notes On C Language Preprocessor

An academic approach to C language preprocessor:

• https://home.cs.colorado.edu/~main/cs1300/doc/gnu/cpp_1.html

A practical explanation of preprocessor "stringify" macro pair, and macro expansion rules with respect to '#' preprocessor operator. This article posted by one Henry Precheur:

• https://henry.precheur.org/code/STRINGIFY/

The C preprocessor can with limitations evaluate arithmetic expressions:

• https://gcc.gnu.org/onlinedocs/gcc-3.0.2/cpp_4.html