Rust Brain Teasers

Puzzle 4

Byte-Sized Chunks

byte_sized/src/main.rs

fn main() {
    let mut counter : i8 = 0;
    loop {
        println!("{}", counter);
        counter += 1;
    }
}

Guess the Output
	Try to guess what the output is before moving to the next page.

The answer depends on how you run the program.

• If you run the program in debug mode with cargo run, the program will display a series of numbers from 0 to 127 and then crash with the following error message: thread ’main’ panicked at ’attempt to add with overflow’, overflow\src\main.rs:6:9.

• If you run the ...