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User kokos answered the wonderful Hidden Features of C question by mentioning the using keyword. Can you elaborate on that? What are the uses of using?.Updating the using keyword was specifically for templates, and as was pointed out in the accepted answer when you are working with non templates using and typedef are mechanically identical, so the choice is totally up to the programmer on the grounds of readability and communication of intent..Using calls Dispose after the using block is left, even if the code throws an exception. So you usually use using for cl.es that require cleaning up after them, like IO.. In C , the using keyword when used for type alias is identical to typedef. A typedef name can also be introduced by an alias declaration. The identifier following the using keyword becomes a typedef name and the optional attribute specifier seq following the identifier appertains to that typedef name. It has the same semantics as if it were introduced by the typedef specifier. In .
