[boost] [type_traits] conditional transformation

Hi, In 20.7.6.6 Other transformations [meta.trans.other] C++0x introduce a conditional template that is equicalent to mpl::if_c template <bool B, class T, class F> struct conditional; If B is true, the member typedef type shall equal T. If B is false, the member typedef type shall equal F. Could this be added to the Boost.TypeTraits? Thanks, _____________________ Vicente Juan Botet Escribá http://viboes.blogspot.com/