"Joel" <joel@boost-consulting.com> wrote > Joel wrote:
Brian Braatz wrote:
Could it be as simple as missing the namespace on the is_sqeuence<> call?
Have you tried it? If it was, I wouldn't have bothered the list ;-) Try replacing int_<0> with int.
I think the problem is the way mpl::is_sequence is implemented. It tries to detect the presence of a "tag" typedef and a "begin"
On VC7.1 It uses this version template< typename BOOST_MPL_AUX_NA_PARAM(T) > struct is_sequence : not_< is_same< typename begin<T>::type, void_ > > { BOOST_MPL_AUX_LAMBDA_SUPPORT(1, is_sequence, (T)) }; where begin<T>::type forwards to T::begin eg this solves the problem temporarily : : namespace boost {namespace mpl{ template<int N> struct begin<int_<N> > : void_{}; }} regards Andy Little