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Mar 8, 2026 at 22:03
7
Anthropic used Claude to write a C compiler in Rust (CCC). I've really enjoyed following the discussion. The initial post shows how they wrote the harness with GCC as an oracle and a prompt specifying a design using SSA. The author has clear domain expertise. https://www.anthropic.com/engineering/building-c-compiler

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Dec 14, 2025 at 21:45
8
Co-Authored-By: An old Stack Overflow answer, blindly accepting the compiler's suggestions, and a linter.
Oct 5, 2025 at 20:23
2
I would have thought that invoking a C compiler would be a solved problem. Looking at Rust's cc crate there's a remarkable long tail of corner cases to fix. Exotic CPUs, microarchitectures, compiler differences, operating system differences, etc.
cc-rs/CHANGELOG.md at main · rust-lang/cc-rs
cc-rs/CHANGELOG.md at main · rust-lang/cc-rs
Rust library for build scripts to compile C/C++ code into a Rust library - rust-lang/cc-rs
Jan 15, 2025 at 08:19
Today I learnt that `cargo fix` won't fix code with compiler errors by default, but you can override this! $ cargo fix --broken-code --allow-dirty && cargo clippy --fix --allow-dirty This incantation does exactly what I wanted :)