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I am building a file reader in C#, and large volumes of data will be enumerated. I want to use the same buffer for each element I read out, then pass the buffer on for further processing by the client. The API would be cleaner if I could return a byte[] of the correct size, rather than the raw buffer and a length.
Is it possible to do this in C# without copying memory?
You can use
ArraySegment<T>http://msdn.microsoft.com/en-us/library/1hsbd92d.aspx
That lets you specify the start and end of the segment you want to pass on without copying any data.