Max< TSource >() [11/12]

static ? long System.Linq.Enumerable.Max< TSource > ( this IEnumerable< TSource > source, Func< TSource, long?> selector )

inlinestatic

Definition at line 5982 of file Enumerable.cs.

    {
        if (source == null)
        {
            ThrowHelper.ThrowArgumentNullException(ExceptionArgument.source);
        }
        if (selector == null)
        {
            ThrowHelper.ThrowArgumentNullException(ExceptionArgument.selector);
        }
        long? result = null;
        using (IEnumerator<TSource> enumerator = source.GetEnumerator())
        {
            do
            {
                if (!enumerator.MoveNext())
                {
                    return result;
                }
                result = selector(enumerator.Current);
            }
            while (!result.HasValue);
            long num = result.GetValueOrDefault();
            if (num >= 0)
            {
                while (enumerator.MoveNext())
                {
                    long? num2 = selector(enumerator.Current);
                    long valueOrDefault = num2.GetValueOrDefault();
                    if (valueOrDefault > num)
                    {
                        num = valueOrDefault;
                        result = num2;
                    }
                }
            }
            else
            {
                while (enumerator.MoveNext())
                {
                    long? num3 = selector(enumerator.Current);
                    long valueOrDefault2 = num3.GetValueOrDefault();
                    if (num3.HasValue && valueOrDefault2 > num)
                    {
                        num = valueOrDefault2;
                        result = num3;
                    }
                }
            }
        }
        return result;
    }

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