/* test.h */
#define A(a, b, ...) b, a __VA_OPT__(,) __VA_ARGS__

#define A2(...) A(__VA_ARGS__)

#define O(s) s, "c"

A("a", O("b"))
A2("a", O("b"))

>gcc -E test.h
>"b" "c" "a"
>"b" "a" "c"
uh

oh nevermind I'm retarded

>>106119706 (OP)
C is such a disgusting language

>>106119777
None of that is c. It's all preprocessor.

>>106119786
It's a C preprocessor.

>>106119786
um akshually the preprocessor is part of the C programming language

>>106119806
If I just need some preprocessing on some random non code files? Not just #defines, but #ifdef and #else. What is the thing I'm looking for? Template engines? And what is the /g/ood one?

>>106119706 (OP)
wonder what freaked him out

>>106119706 (OP)
what's the deal with the moose and is that blood on the floor

>>106120609
that's not a moose. it's donald trump diddling a little boy.

>>106119878
m4?