Almost Always Unsigned
Summary
Almost Quite Unsigned is a deep dive advocating unsigned integer arithmetic for many programming scenarios, arguing that wrapping behavior can be safer and more intuitive than relying on signed arithmetic. It provides language-agnostic reasoning, code examples in C++ and Rust, and practical guidance on loop counters, differences, indexing, overflow, and safer alternatives to sentinel values. The piece challenges common security- and safety-focused intuitions around signed integers and promotes unsigned-first thinking for systems programming.