Rust (programming language)

Rust icon

Rust is a programming language designed for systems, which are "software designed to provide a platform for other software". It is or was used to write operating system and web browser components, services such as OpenDNS and Tor, and game engines. It was made by former Mozilla engineer Graydon Hoare.

Applications

• Astrophysics
• GPU programming
• Simulation

Examples

Here is a hello world program in Rust.

// Define entry point.
fn main() {
    // Write to output.
    println!("Hello world!");
}

Here is an example of declaring a variable and writing its value to the output in Rust.

// Define entry point.
fn main() {
    // Assigns value 5 to the variable callex x.
    let x = 5;

    // Writes the value of x to the output.
    println!("{}", x);
}

Here is an example of using if-else statement in Rust.

// Define entry point.
fn main() {
    // Assigns value 5 to the variable callex x.
    let x = 5;

    // Checks if the variable x is equal to 5, if it isn't, the code in the else block will execute instead.
    if x == 5 {
        println!("x is a 5!");
    } else {
        println!("x is not a 5!");
    }
}

Here is an example of using a loop statement that breaks after it reaches 7 in Rust.

// Define entry point.
fn main() {
    // Assigns value 0 to the variable called x.
    let counter = 0;

    // "Loop" loop runs forever until it reaches a break.
    loop {
        if counter == 7 {
            break
        }

        // Increases the value of counter by 1.
        counter += 1;
    }

    // Writes the value of counter to the output.
    println!("{}", counter);
}