pub trait DistType: Copy + Debug + Default + AddAssign + SubAssign + PrimInt + FromPrimitive + ToPrimitive + AsPrimitive<usize> + AsPrimitive<i64> + WrappingAdd + Sub<Output = Self> { }Expand description
Trait for types that should be used to store the distance score when using the simple
Myers algorithm (not the block-based one, which always uses usize).
For all currently implemented BitVec types, the maximum possible distance
can be stored in u8. Custom implementations using bigger integers can
adjust DistType to hold bigger numbers. Note that due to how the traceback
algorithm currently works, DistType should be able to represent numbers larger
than the bit-width of the BitVec type. For instance, a hypothetical BitVec type
of u256 should use u16 as distance, since u8 cannot store numbers larger
than 255.