On 12/10/05, Peter Dimov <pdimov@mmltd.net> wrote: [snip]
This is useful functionality, but the suggested "trivial implementation" breaks shared_ptr/intrusive_ptr on all legacy compilers (easy to fix) and carries the cost of including a type traits header (possible to fix if someone cares to find the time to do it).
Doenst boost have a no-sfinae-support defined when the compiler doesnt support it? That could guard the type_traits header too. Then the type_traits would be needed only if the compiler has support for SFINAE. Which is ok in this case, isnt?
Note also that the above code is not required to work with tr1::shared_ptr (not so easy to fix :-) ).
That really is something to think about... Now I'm not so sure anymore. best regards -- Felipe Magno de Almeida