printbf
turing
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printbf
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Few lesser known tricks, quirks and features of C
Somewhat related to this, printf alone in a loop is Turing-complete, by using %-directives like that. It was introduced in “Control-Flow Bending: On the Effectiveness of Control-Flow Integrity” (Carlini, et al. 2015) and the authors have implemented Brainfuck and an obfuscated tic-tac-toe with it.
[0]: https://nebelwelt.net/publications/files/15SEC.pdf
[1]: https://github.com/HexHive/printbf
[2]: https://github.com/carlini/printf-tac-toe
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Controling a Super-Intelligent AI is Impossible, Says Researchers
No shit, you can write a brainfuck interpretter in printf statements: https://github.com/HexHive/printbf
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The International Obfuscated C Code Contest 2020 winners
https://github.com/HexHive/printbf
well this is a brainfuck interpreter inside printf. I’m pretty sure there are plenty of c-to-bf transpilers.
turing
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Show HN: A reference implementation of Schönfinkel's Combinatory Logic paper
Hey all,
A while back I implemented Turing's "On Computable Numbers" paper [1], and decided that Schönfinkel's "On the Building Blocks of Mathematical Logic" would be a fun next one to try to implement.
Alongside the code I include a section-by-section guide to the paper. I apologize for any misreadings of the original text (of which there are probably many).
I'll probably continue to try to make guides/reference implementations for landmark CS papers, would love to hear what you think the most important ones are!
[1] https://github.com/planetlambert/turing
- Show HN: The first complete open source implementation of Turing's famous paper
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