My Lightweight Blog

Managing Memory Safely

Rust ensures memory safety without a garbage collector. It achieves this through a system of ownership with a set of rules that the compiler checks at compile time.

Here is a classic example of ownership in action:

fn main() {
    let s1 = String::from("hello");
    let s2 = s1;

    // println!("{}, world!", s1); // This would verify error!
    println!("{}, world!", s2);
}

The Rules of Ownership

1. Each value in Rust has a owner.
2. There can only be one owner at a time.
3. When the owner goes out of scope, the value will be dropped.

We can also use inline code like let mut x = 5; to denote variables within our prose.