Function uncons_while1

pub fn uncons_while1<I, F>(
    input: &mut I,
    predicate: F,
) -> ConsumedResult<I::Range, I>
where
    F: FnMut(I::Item) -> bool,
    I: ?Sized + RangeStream,

Takes items from stream, testing each one with predicate returns a range of at least one items which passed predicate.

Note

This may not return EmptyOk as it should uncons at least one item.