Re: [Boost-users] [fusion] push_back / pop_back

Daniel Bradburn writes:

Hi,

I am trying to do the following:

#include <string>#include #include #include int main(int argc, char* argv[]) { typedef boost::fusion::tuple<int> T1; typedef boost::fusion::result_of::push_back::type T2;

T1 a(0); T2 b(boost::fusion::push_back(a, std::string("")));

boost::fusion::get<0>();

fusion::joint_view, which is returned by fusion::push_back, does not implement the random access concept. Use fusion::front or fusion::deref x fusion::begin.

T1 c(boost::fusion::pop_back(b));

fusion::pop_back requires the sequence to be bidirectional. fusion::joint_view isn't.

return 0;

}

[...] Christopher