View source for Rust (programming language)

Rust is a low-level programming language.  
The main advantage is that it encourages memory-safe programming through reference ownership and by isolating memory-unsafe functions.  

==Usage==
===Installation===
See [https://www.rust-lang.org/tools/install Install]
<pre>
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
</pre>

==Syntax==
===Basics===
<syntaxhighlight lang="rust">
// Const variable, must have type annotation.
const IMPORTANT_VALUE: i32 = 50;
fn main() {
  // C++: int x = 3;
  let mut x: i32 = 3;

  // Shadowing, creating a new variable.
  let x = x + 5;

  // Loop over values [0, 1, 2]
  for i in 0..3 {
    println!("This number is {}", i);
  }

  // Ternary is a single line if statement.
  let big_x = if x > 5 {x} else {5};
}

fn lerp(a: f64, b: f64, x: f64) -> f64 {
   // No semicolon implies return.
  (1.0 - x) * a + x * b
}

// Copied from rustlings.
pub fn fizz_if_foo(fizzish: &str) -> &str {
    if fizzish == "fizz" {
        "foo"
    } else if fizzish == "fuzz" {
        "bar"
    } else {
        "baz"
    }
}
</syntaxhighlight>

===Borrowing===
This is like references in C++.
<syntaxhighlight lang="rust">
let x = 5;
let mut y = 6;

// C++: const int &
example_borrow(&x)
// C++: int&
example_mut_borrow(&mut y)
</syntaxhighlight>

==Resources==
* [https://github.com/rust-lang/rustlings/ Rustlings] - some rust exercises.
* [https://doc.rust-lang.org/book/print.html The Rust Programming Language]
* [https://doc.rust-lang.org/stable/rust-by-example/index.html Rust by example book]