public/subjects/roman_numbers_iter/README.md

roman_numbers_iter

Instructions

Implement the Iterator trait for the RomanNumber type. You should use the code from the previous exercise roman_numbers.

Notions

• Trait Iterator

Expected Functions

//...

impl Iterator for RomanNumber {}

Usage

Here is a program to test your function.

use roman_numbers::RomanNumber;

fn main() {
	let mut number = RomanNumber::from(15);

	println!("{:?}", number);
	println!("{:?}", number.next());
}

And its output

$ cargo run
RomanNumber([X, V])
Some(RomanNumber([X, V, I]))
$