"Gennadiy Rozental" <[EMAIL PROTECTED]> escribió en el mensaje news:[EMAIL PROTECTED] > > In fact, it might be tempting to use the other bits as well. > > For example, I'd imagine a variant implementation that uses > > 8 bits to flag the currently active type. I imagine this interface: > > > > template <class T> > > class aligned_storage > > { > > public: > > > > void const* address() const; > > void* address(); > > > > unsigned char tag() const; > > void tag(unsigned char data); > > }; > > In fact it might be tempting to use all of them available: > > template <class T> > class aligned_storage > { > typedef ... max_size_type_that_fit_in_padding; > public: > > void const* address() const; > void* address(); > > max_size_type_that_fit_in_padding tag() const; > void tag(max_size_type_that_fit_in_padding data); > }; > > Gennadiy. > I think I like this enhanced version. 'max_size_type_that_fit_in_padding' must better be one of the intergral types to make easy and safe to use, so I guess that there might ocurr that some bits are wasted anyway.
Fernando Cacciola _______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost
