It's just an example. The options are really Rust (what I'd prefer), C++, C, or perhaps something like Nim that compiles to C. If you’re trying to make an unop

It's just an example. The options are really Rust (what I'd prefer), C++, C, or perhaps something like Nim that compiles to C. If you’re trying to make an unoptimized parser, then use whatever you want.