Concat() [9/12]

static string System.String.Concat ( ReadOnlySpan< char > str0, ReadOnlySpan< char > str1, ReadOnlySpan< char > str2, ReadOnlySpan< char > str3 )

inlinestatic

Definition at line 1815 of file String.cs.

    {
        int num = checked(str0.Length + str1.Length + str2.Length + str3.Length);
        if (num == 0)
        {
            return Empty;
        }
        string text = FastAllocateString(num);
        Span<char> destination = new Span<char>(ref text._firstChar, text.Length);
        str0.CopyTo(destination);
        destination = destination.Slice(str0.Length);
        str1.CopyTo(destination);
        destination = destination.Slice(str1.Length);
        str2.CopyTo(destination);
        destination = destination.Slice(str2.Length);
        str3.CopyTo(destination);
        return text;
    }

References System.Collections.Generic.Dictionary< TKey, TValue >.CopyTo(), System.destination, System.String.Empty, System.String.FastAllocateString(), and System.text.