pub trait SequenceIndexOp {
// Required methods
fn saturated_at(&self, len: usize) -> usize;
fn wrapped_at(&self, len: usize) -> Option<usize>;
}
pub trait SequenceIndexOp {
// Required methods
fn saturated_at(&self, len: usize) -> usize;
fn wrapped_at(&self, len: usize) -> Option<usize>;
}