"Using Indexers - C# Programming Guide" should mention `ref returns`

[TymurGubayev]

Following statement isn't quite correct.

An indexer value is not classified as a variable; therefore, you cannot pass an indexer value as a ref or out parameter.

But you can pass an indexer value as a ref, if the indexer uses ref return, like this.

        private readonly int[] arr = new int[10];
        public ref int this[int index]
        {
            get
            {
                return ref arr[index];
            }
        }

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Document Details

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• ID: 5323b38b-8dc5-8f50-f5e7-b58ca0e88ad7
• Version Independent ID: 3d9a83cd-98e3-fc6e-727b-32c8e9228c69
• Content: Using Indexers - C# Programming Guide
• Content Source: docs/csharp/programming-guide/indexers/using-indexers.md
• Product: dotnet-csharp
• Technology: csharp-fundamentals
• GitHub Login: @BillWagner
• Microsoft Alias: wiwagn

[BillWagner]

Thanks for spotting this. We'll get this updated.