Max< TSource >() [12/12]

static ? TSource System.Linq.Enumerable.Max< TSource > ( this IEnumerable< TSource > source, IComparer< TSource >? comparer )

inlinestatic

Definition at line 5727 of file Enumerable.cs.

    {
        if (source == null)
        {
            ThrowHelper.ThrowArgumentNullException(ExceptionArgument.source);
        }
        if (comparer == null)
        {
            comparer = Comparer<TSource>.Default;
        }
        TSource val = default(TSource);
        using (IEnumerator<TSource> enumerator = source.GetEnumerator())
        {
            if (val == null)
            {
                do
                {
                    if (!enumerator.MoveNext())
                    {
                        return val;
                    }
                    val = enumerator.Current;
                }
                while (val == null);
                while (enumerator.MoveNext())
                {
                    TSource current = enumerator.Current;
                    if (current != null && comparer.Compare(current, val) > 0)
                    {
                        val = current;
                    }
                }
            }
            else
            {
                if (!enumerator.MoveNext())
                {
                    ThrowHelper.ThrowNoElementsException();
                }
                val = enumerator.Current;
                if (comparer == Comparer<TSource>.Default)
                {
                    while (enumerator.MoveNext())
                    {
                        TSource current2 = enumerator.Current;
                        if (Comparer<TSource>.Default.Compare(current2, val) > 0)
                        {
                            val = current2;
                        }
                    }
                }
                else
                {
                    while (enumerator.MoveNext())
                    {
                        TSource current3 = enumerator.Current;
                        if (comparer.Compare(current3, val) > 0)
                        {
                            val = current3;
                        }
                    }
                }
            }
        }
        return val;
    }

References System.comparer, System.Linq.Default, System.Collections.Generic.Dictionary< TKey, TValue >.GetEnumerator(), System.Linq.source, System.Linq.ThrowHelper.ThrowArgumentNullException(), and System.Linq.ThrowHelper.ThrowNoElementsException().