[Boost-users] fusion: work of 4 sequences at the same time

Hi, I am trying to apply fusion::for_each on a sequence, but inside the unary functor applied to each element, I need to know the index of the element in question, because I need to extract elements with the same index from other sequences. fusion::vector<...> fseq1; fusion::vector<...> fseq2; fusion::vector<...> fseq3; fusion::vector<...> fseq4; fusion::for_each( fseq1, functor<...>(fseq2, fseq3, fseq4) ); template