Introduction to Rust

[Jessica Brown]

Rust is a modern, systems-level programming language designed for performance and safety, particularly around memory management. It eliminates common bugs related to memory access while offering concurrency and zero-cost abstractions. Rust is widely adopted for building high-performance applications.

What is Rust Best Used For?

• Systems programming, such as operating systems and compilers.
• High-performance, low-level applications.
• WebAssembly development for browser-based applications.
• Building safe and concurrent software with robust performance.

Example Rust Program

This example demonstrates variables, a loop, and output.

fn main() {
    // Declare variables
    let greeting = "Hello, Rust Programmer!";
    let count = 5;

    // Display greeting
    println!("{}", greeting);

    // Loop through numbers 1 to count
    for i in 1..=count {
        println!("Iteration: {}", i);
    }

    // Print completion message
    println!("Loop completed! Total iterations: {}", count);
}

Explanation:

1. Variables: greeting is a string literal, and count is an immutable integer. In Rust, variables are immutable by default.
2. Loop: The for loop iterates over the range 1..=count, where ..= includes the upper bound of the range. println! is used for formatted output.
3. Output: The program prints a greeting, each iteration, and a completion message.

Sample Output:

Hello, Rust Programmer!
Iteration: 1
Iteration: 2
Iteration: 3
Iteration: 4
Iteration: 5
Loop completed! Total iterations: 5

---

Rust’s focus on safety and performance makes it an ideal choice for developers working on low-level and high-performance systems. Share your Rust projects, tips, or questions in this thread to learn and collaborate!