use of type_traits

[Paolo Carlini]

Benjamin Kosnik wrote:

>Sorry if this has been discussed already. 
>  
>
You may find interesting this thread:

    http://gcc.gnu.org/ml/libstdc++/2004-07/msg00224.html

Otherwise, indeed, I like a lot your suggestions in the last reply to 
Gaby, but I'm still trying to figure something specific to contribute to 
the discussion (unfortunately, just read the thread: off-line for 12 
hours :(

Paolo.