#include <boost/fusion/include/map.hpp>
#include <boost/noncopyable.hpp>

struct test: boost::noncopyable {
    int a;
};

int main() {

    typedef boost::fusion::map<
        boost::fusion::pair< int, test > > map_type;

    // OK
    map_type map();

    // Compiler error -- tries to copy
    map_type map;

}