Concat() [5/12]

static string System.String.Concat ( params object?[] args )

inlinestatic

Definition at line 1584 of file String.cs.

    {
        if (args == null)
        {
            throw new ArgumentNullException("args");
        }
        if (args.Length <= 1)
        {
            object obj;
            if (args.Length != 0)
            {
                obj = args[0]?.ToString();
                if (obj == null)
                {
                    return Empty;
                }
            }
            else
            {
                obj = Empty;
            }
            return (string)obj;
        }
        string[] array = new string[args.Length];
        int num = 0;
        for (int i = 0; i < args.Length; i++)
        {
            num += (array[i] = args[i]?.ToString() ?? Empty).Length;
            if (num < 0)
            {
                throw new OutOfMemoryException();
            }
        }
        if (num == 0)
        {
            return Empty;
        }
        string text = FastAllocateString(num);
        int num2 = 0;
        foreach (string text2 in array)
        {
            FillStringChecked(text, num2, text2);
            num2 += text2.Length;
        }
        return text;
    }

References System.array, System.String.Empty, System.String.FastAllocateString(), System.String.FillStringChecked(), System.String.Length, System.obj, and System.text.