Deep dives into high-performance systems programming, memory safety without garbage collection, lifetime management, and concurrency.
Rust is a systems programming language that prioritizes safety, speed, and concurrency. Unlike application languages designed purely for user-facing software, Rust occupies the space where software meets hardware — operating systems, embedded firmware, network services, and performance-critical infrastructure. It was created by Graydon Hoare at Mozilla Research in the 2010s, born from frustration with the…
Rust’s toolchain is unusually well-integrated for a systems language. Where C programmers juggle separate compilers, build systems, linkers, and package managers, Rust ships a single installation path that provides all of these pieces working together. The installer is called Rustup, the compiler is rustc, and the build system and package manager is Cargo. Together they…
Every programming language has its ritual first program, and Rust’s is no exception. But where most languages treat “Hello, world!” as a trivial one-liner, Rust’s version introduces you to the project structure that will define every non-trivial program you write. The cargo new command does not just create a file with a print statement —…
Variables in Rust are immutable by default. This single design decision surprises nearly every programmer coming from another language, where mutation is the norm and constancy is the exception. In Rust the default is reversed: you must explicitly opt in to mutability using the mut keyword. The language makes you declare your intent to change…
Rust’s type system begins with scalars — types that represent a single value. The language has four primary scalar categories: integers, floating-point numbers, booleans, and characters. These are the atoms from which all larger data structures are built, and understanding their sizes, ranges, and behaviors is essential before working with collections, structs, or enums. What…