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Can can I reference extended methods/params without having to cast from the base class object returned

Is there away to not have a \"cast\" the top.First().Value() return to \"Node\", but rather have it automatically assume this (as opposed to NodeBase), so I then see extended attributes for the class

boost::bind and << operator in C++

I would like to bind the << stream operator: for_each(begin, end, boost::bind(&operator<<, stream, _1));

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Which new C#/VB features require .net Framework 4?

I remember reading in passing that some of the new language features in C# and VB that are available in VS2010 are backwards compatible with earlier versi开发者_Python百科ons of the framework, but tha