public void Sort(T[] keys, int index, int length, IComparer <T> comparer)
{
try
{
if (comparer == null || comparer == Comparer <T> .Default)
{
if (BinaryCompatibility.TargetsAtLeast_Desktop_V4_5)
{
GenericArraySortHelper <T> .IntrospectiveSort(keys, index, length);
}
else
{
GenericArraySortHelper <T> .DepthLimitedQuickSort(keys, index, length + index - 1, 32);
}
}
else if (BinaryCompatibility.TargetsAtLeast_Desktop_V4_5)
{
ArraySortHelper <T> .IntrospectiveSort(keys, index, length, comparer);
}
else
{
ArraySortHelper <T> .DepthLimitedQuickSort(keys, index, length + index - 1, comparer, 32);
}
}
catch (IndexOutOfRangeException ex)
{
IntrospectiveSortUtilities.ThrowOrIgnoreBadComparer((object)comparer);
}
catch (Exception ex)
{
throw new InvalidOperationException(Environment.GetResourceString("InvalidOperation_IComparerFailed"), ex);
}
}