Sum() [4/10]

static ? double System.Linq.Enumerable.Sum ( this IEnumerable< double?> source )

inlinestatic

Definition at line 7840 of file Enumerable.cs.

    {
        if (source == null)
        {
            ThrowHelper.ThrowArgumentNullException(ExceptionArgument.source);
        }
        double num = 0.0;
        foreach (double? item in source)
        {
            if (item.HasValue)
            {
                num += item.GetValueOrDefault();
            }
        }
        return num;
    }

References System.item, System.Linq.source, and System.Linq.ThrowHelper.ThrowArgumentNullException().