On Fri, 7 Mar 2003 18:17:56 +0100, Pavol Droba <[EMAIL PROTECTED]>
wrote:
>I wanted to do something else:
>
> template <class T> struct trait_class
> {
> ....
> }
>
> template <class T> struct trait_class<std::vector<T> >
> {
> ....
> }
>
>without #include <vector>
>
>Is this possible?
Practically speaking, no. At least not in a portable, conforming way.
You can (under certain limitations) provide specializations like
class A { };
namespace std { template<> class numeric_limits<A> {}; }
but you can't otherwise add declarations to std. There are several
reasons for this limitation.
AFAIK the committee discussed the possibility to provide fwd versions
of standard headers other than <iosfwd> but decided not to do so.
Genny.
_______________________________________________
Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost
