Function rin::ecs::streaming_iterator::convert_mut

pub fn convert_mut<'a, I, T>(
    iterator: I
) -> ConvertMut<'a, <I as IntoIterator>::IntoIter, T> where
    T: ?Sized,
    I: IntoIterator<Item = &'a mut T>, 

Turns an iterator of mutable references into a streaming iterator.

let mut scores = vec![Some(100), None, Some(80)];
{
    let mut streaming_iter = convert_mut(&mut scores);
    while let Some(opt_score) = streaming_iter.next_mut() {
        if let Some(score) = opt_score.take() {
            println!("The score is: {}", score);
        }
        // else already reported
    }
}
assert_eq!(scores, [None, None, None]);