C99 has effectively identical types in the standard library (uint8_t ... uint64_t, and ditto for int8_t ... uint64_t). There are very few modern C codebases whe

C99 has effectively identical types in the standard library (uint8_t ... uint64_t, and ditto for int8_t ... uint64_t). There are very few modern C codebases where I haven't seen these used (personally I use them because it's much easier than remembering what is the minimum guaranteed size of unsigned long). The Rust ones have just slightly more terse names (which it's understandable to dislike, though I personally find the endless _t suffixes in C type names to be a bit annoying as well). And Rust's usize is basically uintptr_t.