/// <summary>
/// Returns a hash code for the specified object.
/// </summary>
/// <param name="obj">The object for which to return a hash code. This object may be <c>null</c>.</param>
/// <returns>A hash code for the specified object.</returns>
protected override int DoGetHashCode(T obj)
{
unchecked
{
var ret = (int)2166136261;
ret += ComparerHelpers.GetHashCodeFromComparer(_source, obj);
ret *= 16777619;
ret += ComparerHelpers.GetHashCodeFromComparer(_secondSource, obj);
ret *= 16777619;
return(ret);
}
}
/// <summary>
/// Returns a hash code for the specified object.
/// </summary>
/// <param name="obj">The object for which to return a hash code.</param>
/// <returns>A hash code for the specified object.</returns>
protected override int DoGetHashCode(IEnumerable <T> obj)
{
unchecked
{
var ret = (int)2166136261;
foreach (var item in obj)
{
ret += ComparerHelpers.GetHashCodeFromComparer(_source, item);
ret *= 16777619;
}
return(ret);
}
}
/// <summary>
/// Returns a hash code for the specified object.
/// </summary>
/// <param name="obj">The object for which to return a hash code. This object may be <c>null</c>.</param>
/// <returns>A hash code for the specified object.</returns>
protected override int DoGetHashCode(T obj)
{
return(ComparerHelpers.GetHashCodeFromComparer(_source, obj));
}
