Obfuscated C Programs

In my spare time I like to abuse the 'C' programming language.

Sometimes I even submit the results to the International Obfuscated C Code Contest.

IOCCC Submissions

IOCCC17 2004
- tbo.c
IOCCC18 2005
- cube.c - Won "Most Beauteous Visuals" in 2005 contest!
IOCCC21 2012
- reverse.c
- qr.c
IOCCC28 2024 (awards announced in 2025)
- rr.c
- starpath.c

E-mail Signature Obfuscated C

For the extra challenge I try to reduce some of my obfuscated C to fit into a proper e-mail signature (that is 4, 79-character lines). Some of these fail to compile on modern compilers due to exploiting undefined behavior.

LZSS compressed ASCII art:
Website QR Code
- It's hard to get this to fit in 4 lines. I had to cheat and let things compile with warnings

Code also available here: https://github.com/deater/vmw-ioccc.git

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