[boost] [fusion][containers]reason for not reusing mpl::vector to specify element types

From: Larry Evans (cppljevans_at_[hidden])
Date: 2006-09-25 17:42:26

Both fusion list and vector specify argument types with:

     template <
         BOOST_PP_ENUM_PARAMS_WITH_A_DEFAULT(
             FUSION_MAX_LIST_SIZE, typename T, void_)
     >
     struct container_whatever;

where container_whatever may be either vector or list.

What's the reason for not using mpl::vector instead of
using yet another BOOST_PP_ENUM* call and requiring
another *_MAX_*_SIZE macro?