Branching with if-else is similar to other languages. Unlike many of them, the boolean condition doesn't need to be surrounded by parentheses, and each condition is followed by a block. if-else conditionals are expressions, and, all branches must return the same type.
>fn main() {
>let n = 5;
>if n < 0 {
>print!("{} is negative", n);
>} else if n > 0 {
>print!("{} is positive", n);
>} else {
>print!("{} is zero", n);
>}
>let big_n =
>if n < 10 && n > -10 {
>println!(", and is a small number, increase ten-fold");
>// This expression returns an `i32`.
>10 * n
>} else {
>println!(", and is a big number, halve the number");
>// This expression must return an `i32` as well.
>n / 2
>// TODO ^ Try suppressing this expression with a semicolon.
>};
>// ^ Don't forget to put a semicolon here! All `let` bindings need it.
>println!("{} -> {}", n, big_n);
>}
>הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Rust provides a loop keyword to indicate an infinite loop.
The break statement can be used to exit a loop at anytime, whereas the continue statement can be used to skip the rest of the iteration and start a new one.
>fn main() {
>let mut count = 0u32;
>println!("Let's count until infinity!");
>// Infinite loop
>loop {
>count += 1;
>if count == 3 {
>println!("three");
>// Skip the rest of this iteration
>continue;
>}
>println!("{}", count);
>if count == 5 {
>println!("OK, that's enough");
>// Exit this loop
>break;
>}
>}
>}
>הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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