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Comment by agumonkey | Hacker News Reader

first thing that jumps (sic) is that comparing puts to formatted print is not worth of a gentleman.

How would you write it, out of curiosity?

no idea, but puts is memcopy right ? println! / printf involve megatons of steps

There's an example of using stdout.write at the top of this page: https://doc.rust-lang.org/std/io/fn.stdout.html

    use std::io::{self, Write};

    fn main() -> io::Result<()> {
        io::stdout().write(b"hello world")?;

        Ok(())
    }

I should improve this example, in its current form you could drop the ? and the Ok stuff...