Rust: expressions

gistfile1.rs

// expressions.rs
fn main() {
  let a = {
    let inner = 2;
    inner * inner
  };

  println!("a = {}", a);

  let b = {
    let inner = 2;
    inner * inner;
  };

  println!("b = {}", b);

  println!("{}", returns_hello());

  let bool_value = true;

  let int_value =
    if bool_value == true {
      1
    } else {
      0
    };

  println!("{}", int_value);
}

fn returns_hello() -> String {
  String::from_str("hello")
}