/// <summary>Map from a distance to a distance code.</summary>
/// <remarks>No side effects. _dist_code[256] and _dist_code[257] are never used.</remarks>
internal static int DistanceCode(int dist)
{
return((dist < 256) ? DistCode[dist] : DistCode[256 + SharedUtils.UrShift(dist, 7)]);
}
