rs84 B
Rust — Hello World
The classic hello-world in Rust — fn main and the println! macro — for testing highlighters, rustc, and parsers.
Preview — first 5 linesrs
// The classic first program, in Rust.
fn main() {
println!("Hello, world!");
}
Specifications
- Language
- Rust
- Kind
- hello-world
- Lines
- 4
- Encoding
- UTF-8
- Line Endings
- LF
What is a .rs file?
Rust (.rs) is a plain-text source file for the Rust programming language — a statically typed, compiled systems language focused on memory safety without a garbage collector, enforced by its ownership and borrow checker. It features enums with data, pattern matching, traits, generics, and a strong type system.
How to use this file
Use an example .rs file to test syntax highlighters, the rustc compiler and cargo, rustfmt and clippy, and parser or language-detection tooling against real Rust constructs.
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Generated by generation/code_samples.py. Free for any use, no attribution required — license.