public static ulong ComposeULong(IntrinsicMath.IntegerParts parts) => parts.ToULong();
public static long ComposeLong(IntrinsicMath.IntegerParts parts) => (long)parts.ToULong();
public static ulong ComposeULong(IntrinsicMath.IntegerParts parts) => parts.ToULong();
public static long ComposeLong(IntrinsicMath.IntegerParts parts) => (long)parts.ToULong();