pub trait OneSidedRange<T>: RangeBounds<T> where
    T: ?Sized
{ }
🔬 This is a nightly-only experimental API. (one_sided_range)
Expand description

OneSidedRange is implemented for built-in range types that are unbounded on one side. For example, a.., ..b and ..=c implement OneSidedRange, but .., d..e, and f..=g do not.

Types that implement OneSidedRange<T> must return Bound::Unbounded from one of RangeBounds::start_bound or RangeBounds::end_bound.