type_traits question

From: David Abrahams (david.abrahams_at_[hidden])
Date: 2001-12-07 15:55:16

      ::boost::is_function<T>::value 
    The documentation says: Evaluates to true only if T is a function type (note not a reference or pointer to function). 
     

 
What does that mean?

How do I name a function type (as opposed to a reference or pointer to function)?
If I can't name a function type, can I produce one?

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