This practical book introduces systems programmers to Rust, the new and cutting-edge language that';s still in the experimental/lab stage. You';ll learn how Rust offers the rare and valuable combination of statically verified memory safety and low-level control-imagine C++, but without dangling pointers, null pointer dereferences, leaks, or buffer overruns.Author Jim Blandy-the maintainer of GNU Emacs and GNU Guile-demonstrates how Rust has the potential to be the first usable programming language that brings the benefits of an expressive modern type system to systems programming. Rust';s rules for borrowing, mutability, ownership, and moves versus copies will be unfamiliar to most systems programmers, but they';re key to Rust';s unique advantages.This book presents Rust';s rules clearly and economically; elaborates on their consequences; and shows you how to express the programs you want to write in terms that Rust can prove are free of a broad class of common errors.