The C2Rust project is all about translating C code into an equivalent, drop-in ABI-compatible Rust implementation. (Read our C2Rust introductory blog post here.) Along the way we’ve uncovered some dark corners of C as it’s written in practice, and found places where Rust can’t quite replicate the same code with the same ABI. This is the story of those dark corners and the areas we think Rust needs to improve to be fully FFI compatible with C.
