use crate::number::Number;

pub struct Iter {
    index: usize,
    data: Vec<Number>
}

impl Iter {
    pub fn new(data: Vec<Number>) -> Iter {
        Iter { index: 0, data }
    }
}

impl Iterator for Iter {
    type Item = Number;

    fn next(&mut self) -> Option<Number> {
        self.index += 1;
        if self.index <= self.data.len() {
            Some(self.data[self.index - 1])
        } else {
            Some(0.0)
        }
    }
}