For repeating pieces of code, Rust has the common while loop, again without parentheses around the condition:
// from Chapter 3/code/loops.rs
fn main() {
let max_power = 10;
let mut power = 1;
while power < max_power {
print!("{} ", power); // prints without newline
power += 1; // increment counter
}
} This prints the following output:
1 2 3 4 5 6 7 8 9To start an infinite loop, use the loop statement, as shown below:
loop {
power += 1;
if power == 42 {
// Skip the rest of this iteration
continue;
}
print!("{} ", power);
if power == 50 {
print!("OK, that's enough for today");
break; // exit the loop
}
} All the power values including 50 but except 42 are printed; then the loop stops with the statement break. The value 42 is not printed because of the continue statement. So, loop is equivalent to a while true and a loop with a conditioned...