Is the sorting algorithm used by .NET's `Array.Sort()` method a stable algorithm?

Question

Is the sorting algorithm used by .NET\'s Array.Sort() method a stable algorithm?

Answer 1

UPDATE: This code not stabilizing Array.Sort (ensure that the elements are always sorted in the same order):

public static class ComparisonExtensions
{
    public static Comparison WithGetHashCode(this Comparison current)
    {
        return (x, y) =>
        {
            var result = current(x, y);
            if (result == 0)
                return x.GetHashCode() - y.GetHashCode();
            return result;
        };
    }
}

Use:

Comparison comparison = (x, y) => x.BirthYear.CompareTo(y.BirthYear);
Array.Sort(unstable, comparison.WithGetHashCode());