Fun Extending the C Preprocessor

2 comments

• teo_zero 1 hour ago
  There are a couple of constructs that you end up re-creating as soon as you need non-trivial preprocessing.

  One of those is the two-stage CAT, another one is the NARG the article talks about.

  __COUNTER__ is going to be added to C29, the next version of the standard, maybe there's hope for __VA_COUNT__ and __CAT__ too!
• pajko 1 day ago
  You don't need to extend the preprocessor to have MAP: https://github.com/swansontec/map-macro
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  • david2ndaccount 17 hours ago
    The article shows how to implement map, but it should be a builtin