C# 7.0 -Ref Return and Ref Local
C# 7.0 introduces ref returns and ref locals. The main goal of these new features is to make it easier for developers to pass around references to value types instead of copies of their values. This is important when working with large data structures that are implemented as value types. C# allows passing parameters by reference, but a method was not able to return a reference. This has been changed with C# version 7.0.
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