Hi Boosters, I've been reading the Boost.Fusion documentation and I saw an "error" on the Quick Start page : http://spirit.sourceforge.net/dl_more/fusion_v2/libs/fusion/doc/html/fusion/... The given code is : #include <boost/fusion/sequence.hpp> #include <boost/fusion/include/sequence.hpp> // ... vector <http://spirit.sourceforge.net/dl_more/fusion_v2/libs/fusion/doc/html/fusion/container/vector.html><int, char, std::string> stuff(1, 'x', "howdy"); int i = at_c <http://spirit.sourceforge.net/dl_more/fusion_v2/libs/fusion/doc/html/fusion/sequence/intrinsic/functions/at_c.html><0>(stuff); char ch = at_c <http://spirit.sourceforge.net/dl_more/fusion_v2/libs/fusion/doc/html/fusion/sequence/intrinsic/functions/at_c.html><1>(stuff); std::string s = at_c <http://spirit.sourceforge.net/dl_more/fusion_v2/libs/fusion/doc/html/fusion/sequence/intrinsic/functions/at_c.html><2>(stuff); But this way we never get any vector.hpp included. (however I'm on the svn version... maybe on 1.36 one of the sequence.hpp includes vector... but I think it is rather the one in the container dir) And I think such an error makes people let Fusion down, so here is a "minimal" code that would have a much better effect, IMO, on fusion's doc readers. #include <boost/fusion/sequence.hpp> // for boost::fusion::at_c #include <boost/fusion/include/vector.hpp> // for boost::fusion::vector #include <iostream> #include <string> using namespace boost::fusion; int main() { vector<int, char, std::string> stuff(1, 'x', "howdy"); int i = at_c<0>(stuff); char ch = at_c<1>(stuff); std::string s = at_c<2>(stuff); std::cout << "(" << i << "," << ch << "," << s << ")" << std::endl; return 0; } This way, they'd just have to copy, paste, compile & launch to see Fusion in action, which would make them read the rest of the doc more happily. Hope it helps. -- Alp Mestan --- http://blog.mestan.fr/