gistfile1.rs

let hi = "hi";
let mut count = 0;

while count < 10 {
    println!("count is {}", count);
    count += 1;
}

static MONSTER_FACTOR: f64 = 57.8;
let monster_size = MONSTER_FACTOR * 10.0;
let monster_size: int = 50;

fn is_four(x: int) -> bool {
   // No need for a return statement. The result of the expression
   // is used as the return value.
   x == 4
}