rust-main-abel-test 0.1.0

abel-test
Documentation 
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use std::error::Error;

struct Counter {
    count: u32,
}

impl Counter {
    fn new() -> Counter {
        Counter { count: 0 }
    }
}

impl Iterator for Counter {
    type Item = u32;
    fn next(&mut self) -> Option<Self::Item> {
        if self.count < 5 {
            self.count += 1;
            Some(self.count)
        } else {
            None
        }
    }
}

fn main() -> Result<(), Box<dyn Error>> {
    let list = vec![9, 5, 3, 4, 8];
    println!("{:?}", list);
    let c = Counter::new().skip(2).zip(list).map(|(x, y)| x * y);
    for i in c {
        println!("{:?}", i)
    }
    Ok(())
}