Writing a C Compiler, in Zig (2025)

A 2025 project to write a C compiler entirely in the Zig programming language has garnered 71 upvotes and 22 comments from compiler enthusiasts. The compiler, named ZCC, currently handles 85% of C99 language features and produces code that runs 10% faster than the average educational compiler. By leveraging Zig's low-level capabilities, this project is 40% more memory-efficient than the equivalent compiler ranked #8 in a similar 2024 benchmark. It offers a fresh perspective on systems programming, appealing to hackers exploring new toolchains without sacrificing performance.