Hi, I have the follow function: void dumpRL(const RectList& orgRectList, ostream& os) { for_each(orgRectList.begin(), orgRectList.end(), boost::lambda::bind( &Rect::dump , boost::lambda::_1, boost::ref (os) )); } where typedef shared_ptr<Rect> RectPtr; typedef vector<RectPtr> RectList; And in my Rect class, I have class Rect { void dump(ostream& os) const; } But I am getting this compile error: /usr/local/include/boost-1_35/boost/lambda/detail/actions.hpp: In static member function 'static RET boost::lambda::function_action<3, T>::apply(A1&, A2&, A3&) [with RET = void, A1 = void (Rect::* const)(std::ostream&)const, A2 = const boost::shared_ptr<Rect>, A3 = std::basic_ostream<char, std::char_traits<char> >, T = boost::lambda::detail::unspecified]': /usr/local/include/boost-1_35/boost/lambda/detail/lambda_functor_base.hpp:425: instantiated from 'RET boost::lambda::lambda_functor_base<boost::lambda::action<3, Act>, Args>::call(A&, B&, C&, Env&) const [with RET = void, A = const boost::shared_ptr<Rect>, B = const boost::tuples::null_type, C = const boost::tuples::null_type, Env = const boost::tuples::null_type, Act = boost::lambda::function_action<3, boost::lambda::detail::unspecified>, Args = boost::tuples::tuple<void (Rect::* const)(std::ostream&)const, const boost::lambda::lambda_functor<boost::lambda::placeholder<1> >, std::basic_ostream<char, std::char_traits<char> >&, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type>]' /usr/local/include/boost-1_35/boost/lambda/detail/lambda_functors.hpp:156: instantiated from 'typename T::sig<boost::tuples::tuple<const A&, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> >::type boost::lambda::lambda_functor<Base>::operator()(const A&) const [with A = boost::shared_ptr<Rect>, T = boost::lambda::lambda_functor_base<boost::lambda::action<3, boost::lambda::function_action<3, boost::lambda::detail::unspecified>

, boost::tuples::tuple<void (Rect::* const)(std::ostream&)const, const boost::lambda::lambda_functor<boost::lambda::placeholder<1> >, std::basic_ostream<char, std::char_traits<char> >&, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> >]' /usr/include/c++/4.2/bits/stl_algo.h:159: instantiated from '_Function std::for_each(_InputIterator, _InputIterator, _Function) [with _InputIterator = __gnu_cxx::__normal_iterator<const boost::shared_ptr<Rect>*, std::vector<boost::shared_ptr<Rect>, std::allocator<boost::shared_ptr<Rect> > > >, _Function = boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<3, boost::lambda::function_action<3, boost::lambda::detail::unspecified> , boost::tuples::tuple<void (Rect::* const)(std::ostream&)const, const boost::lambda::lambda_functor<boost::lambda::placeholder<1> >, std::basic_ostream<char, std::char_traits<char> >&, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >]' /home/scheung/snapshot_working2/firefox-3.0/mozilla/dom/src/blocks/RectUtils.cpp:74: instantiated from here /usr/local/include/boost-1_35/boost/lambda/detail/actions.hpp:96: error: no matching function for call to 'boost::lambda::function_adaptor<void (Rect::*)(std::ostream&)const>::apply(void (Rect::* const&)(std::ostream&)const, const boost::shared_ptr<Rect>&, std::basic_ostream<char, std::char_traits<char> >&)' /usr/local/include/boost-1_35/boost/lambda/detail/actions.hpp:96: error: return-statement with a value, in function returning 'void' /usr/local/include/boost-1_35/boost/lambda/detail/actions.hpp: In static member function 'static RET boost::lambda::function_action<2, T>::apply(A1&, A2&) [with RET = int, A1 = int (Rect::* const)()const, A2 = const boost::shared_ptr<Rect>, T = boost::lambda::detail::unspecified]': /usr/local/include/boost-1_35/boost/lambda/detail/lambda_functor_base.hpp:408: instantiated from 'RET boost::lambda::lambda_functor_base<boost::lambda::action<2, Act>, Args>::call(A&, B&, C&, Env&) const [with RET = int, A = const boost::shared_ptr<Rect>, B = const boost::shared_ptr<Rect>, C = const boost::tuples::null_type, Env = const boost::tuples::null_type, Act = boost::lambda::function_action<2, boost::lambda::detail::unspecified>, Args = boost::tuples::tuple<int (Rect::* const)()const, const boost::lambda::lambda_functor<boost::lambda::placeholder<1> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type>]' /usr/local/include/boost-1_35/boost/lambda/detail/select_functions.hpp:61: instantiated from 'static RET boost::lambda::detail::r_select<RET>::go(const boost::lambda::lambda_functor<Arg>&, A&, B&, C&, Env&) [with Arg = boost::lambda::lambda_functor_base<boost::lambda::action<2, boost::lambda::function_action<2, boost::lambda::detail::unspecified> , boost::tuples::tuple<int (Rect::* const)()const, const boost::lambda::lambda_functor<boost::lambda::placeholder<1> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> >, A = const boost::shared_ptr<Rect>, B = const boost::shared_ptr<Rect>, C = const boost::tuples::null_type, Env = const boost::tuples::null_type, RET = int]' /usr/local/include/boost-1_35/boost/lambda/detail/lambda_functor_base.hpp:425: instantiated from 'RET boost::lambda::lambda_functor_base<boost::lambda::action<3, Act>, Args>::call(A&, B&, C&, Env&) const [with RET = bool, A = const boost::shared_ptr<Rect>, B = const boost::shared_ptr<Rect>, C = const boost::tuples::null_type, Env = const boost::tuples::null_type, Act = boost::lambda::function_action<3, boost::lambda::detail::unspecified>, Args = boost::tuples::tuple<const std::less<int>, const boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<2, boost::lambda::function_action<2, boost::lambda::detail::unspecified> , boost::tuples::tuple<int (Rect::* const)()const, const boost::lambda::lambda_functor<boost::lambda::placeholder<1> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >, const boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<2, boost::lambda::function_action<2, boost::lambda::detail::unspecified> , boost::tuples::tuple<int (Rect::* const)()const, const boost::lambda::lambda_functor<boost::lambda::placeholder<2> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type>]' /usr/local/include/boost-1_35/boost/lambda/detail/lambda_functors.hpp:188: instantiated from 'typename T::sig<boost::tuples::tuple<const A&, const B&, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> >::type boost::lambda::lambda_functor<Base>::operator()(const A&, const B&) const [with A = boost::shared_ptr<Rect>, B = boost::shared_ptr<Rect>, T = boost::lambda::lambda_functor_base<boost::lambda::action<3, boost::lambda::function_action<3, boost::lambda::detail::unspecified> , boost::tuples::tuple<const std::less<int>, const boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<2, boost::lambda::function_action<2, boost::lambda::detail::unspecified> , boost::tuples::tuple<int (Rect::* const)()const, const boost::lambda::lambda_functor<boost::lambda::placeholder<1> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >, const boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<2, boost::lambda::function_action<2, boost::lambda::detail::unspecified> , boost::tuples::tuple<int (Rect::* const)()const, const boost::lambda::lambda_functor<boost::lambda::placeholder<2> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> >]' /usr/include/c++/4.2/bits/stl_algo.h:125: instantiated from 'const _Tp& std::__median(const _Tp&, const _Tp&, const _Tp&, _Compare) [with _Tp = boost::shared_ptr<Rect>, _Compare = boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<3, boost::lambda::function_action<3, boost::lambda::detail::unspecified> , boost::tuples::tuple<const std::less<int>, const boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<2, boost::lambda::function_action<2, boost::lambda::detail::unspecified> , boost::tuples::tuple<int (Rect::* const)()const, const boost::lambda::lambda_functor<boost::lambda::placeholder<1> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >, const boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<2, boost::lambda::function_action<2, boost::lambda::detail::unspecified> , boost::tuples::tuple<int (Rect::* const)()const, const boost::lambda::lambda_functor<boost::lambda::placeholder<2> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >]' /usr/include/c++/4.2/bits/stl_algo.h:2795: instantiated from 'void std::__introsort_loop(_RandomAccessIterator, _RandomAccessIterator, _Size, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<boost::shared_ptr<Rect>*, std::vector<boost::shared_ptr<Rect>, std::allocator<boost::shared_ptr<Rect> > > >, _Size = int, _Compare = boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<3, boost::lambda::function_action<3, boost::lambda::detail::unspecified> , boost::tuples::tuple<const std::less<int>, const boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<2, boost::lambda::function_action<2, boost::lambda::detail::unspecified> , boost::tuples::tuple<int (Rect::* const)()const, const boost::lambda::lambda_functor<boost::lambda::placeholder<1> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >, const boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<2, boost::lambda::function_action<2, boost::lambda::detail::unspecified> , boost::tuples::tuple<int (Rect::* const)()const, const boost::lambda::lambda_functor<boost::lambda::placeholder<2> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >]' /usr/include/c++/4.2/bits/stl_algo.h:2866: instantiated from 'void std::sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<boost::shared_ptr<Rect>*, std::vector<boost::shared_ptr<Rect>, std::allocator<boost::shared_ptr<Rect> > > >, _Compare = boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<3, boost::lambda::function_action<3, boost::lambda::detail::unspecified> , boost::tuples::tuple<const std::less<int>, const boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<2, boost::lambda::function_action<2, boost::lambda::detail::unspecified> , boost::tuples::tuple<int (Rect::* const)()const, const boost::lambda::lambda_functor<boost::lambda::placeholder<1> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >, const boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<2, boost::lambda::function_action<2, boost::lambda::detail::unspecified> , boost::tuples::tuple<int (Rect::* const)()const, const boost::lambda::lambda_functor<boost::lambda::placeholder<2> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >]' /home/scheung/snapshot_working2/firefox-3.0/mozilla/dom/src/blocks/RectUtils.h:337: instantiated from 'void do_sortX(T1&) [with T1 = std::vector<boost::shared_ptr<Rect>, std::allocator<boost::shared_ptr<Rect> > >, T2 = Rect]' /home/scheung/snapshot_working2/firefox-3.0/mozilla/dom/src/blocks/RectUtils.cpp:62: instantiated from here /usr/local/include/boost-1_35/boost/lambda/detail/actions.hpp:87: error: no matching function for call to 'boost::lambda::function_adaptor<int (Rect::*)()const>::apply(int (Rect::* const&)()const, const boost::shared_ptr<Rect>&)' /usr/local/include/boost-1_35/boost/lambda/detail/actions.hpp: In static member function 'static RET boost::lambda::function_action<2, T>::apply(A1&, A2&) [with RET = int, A1 = int (Rect::* const)()const, A2 = boost::shared_ptr<Rect>, T = boost::lambda::detail::unspecified]': /usr/local/include/boost-1_35/boost/lambda/detail/lambda_functor_base.hpp:408: instantiated from 'RET boost::lambda::lambda_functor_base<boost::lambda::action<2, Act>, Args>::call(A&, B&, C&, Env&) const [with RET = int, A = boost::shared_ptr<Rect>, B = boost::shared_ptr<Rect>, C = const boost::tuples::null_type, Env = const boost::tuples::null_type, Act = boost::lambda::function_action<2, boost::lambda::detail::unspecified>, Args = boost::tuples::tuple<int (Rect::* const)()const, const boost::lambda::lambda_functor<boost::lambda::placeholder<1> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type>]' /usr/local/include/boost-1_35/boost/lambda/detail/select_functions.hpp:61: instantiated from 'static RET boost::lambda::detail::r_select<RET>::go(const boost::lambda::lambda_functor<Arg>&, A&, B&, C&, Env&) [with Arg = boost::lambda::lambda_functor_base<boost::lambda::action<2, boost::lambda::function_action<2, boost::lambda::detail::unspecified> , boost::tuples::tuple<int (Rect::* const)()const, const boost::lambda::lambda_functor<boost::lambda::placeholder<1> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> >, A = boost::shared_ptr<Rect>, B = boost::shared_ptr<Rect>, C = const boost::tuples::null_type, Env = const boost::tuples::null_type, RET = int]' /usr/local/include/boost-1_35/boost/lambda/detail/lambda_functor_base.hpp:425: instantiated from 'RET boost::lambda::lambda_functor_base<boost::lambda::action<3, Act>, Args>::call(A&, B&, C&, Env&) const [with RET = bool, A = boost::shared_ptr<Rect>, B = boost::shared_ptr<Rect>, C = const boost::tuples::null_type, Env = const boost::tuples::null_type, Act = boost::lambda::function_action<3, boost::lambda::detail::unspecified>, Args = boost::tuples::tuple<const std::less<int>, const boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<2, boost::lambda::function_action<2, boost::lambda::detail::unspecified> , boost::tuples::tuple<int (Rect::* const)()const, const boost::lambda::lambda_functor<boost::lambda::placeholder<1> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >, const boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<2, boost::lambda::function_action<2, boost::lambda::detail::unspecified> , boost::tuples::tuple<int (Rect::* const)()const, const boost::lambda::lambda_functor<boost::lambda::placeholder<2> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type>]' /usr/local/include/boost-1_35/boost/lambda/detail/lambda_functors.hpp:164: instantiated from 'typename T::sig<boost::tuples::tuple<A&, B&, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> >::type boost::lambda::lambda_functor<Base>::operator()(A&, B&) const [with A = boost::shared_ptr<Rect>, B = boost::shared_ptr<Rect>, T = boost::lambda::lambda_functor_base<boost::lambda::action<3, boost::lambda::function_action<3, boost::lambda::detail::unspecified> , boost::tuples::tuple<const std::less<int>, const boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<2, boost::lambda::function_action<2, boost::lambda::detail::unspecified> , boost::tuples::tuple<int (Rect::* const)()const, const boost::lambda::lambda_functor<boost::lambda::placeholder<1> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >, const boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<2, boost::lambda::function_action<2, boost::lambda::detail::unspecified> , boost::tuples::tuple<int (Rect::* const)()const, const boost::lambda::lambda_functor<boost::lambda::placeholder<2> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> >]' /usr/include/c++/4.2/bits/stl_algo.h:2278: instantiated from '_RandomAccessIterator std::__unguarded_partition(_RandomAccessIterator, _RandomAccessIterator, _Tp, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<boost::shared_ptr<Rect>*, std::vector<boost::shared_ptr<Rect>, std::allocator<boost::shared_ptr<Rect> > > >, _Tp = boost::shared_ptr<Rect>, _Compare = boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<3, boost::lambda::function_action<3, boost::lambda::detail::unspecified> , boost::tuples::tuple<const std::less<int>, const boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<2, boost::lambda::function_action<2, boost::lambda::detail::unspecified> , boost::tuples::tuple<int (Rect::* const)()const, const boost::lambda::lambda_functor<boost::lambda::placeholder<1> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >, const boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<2, boost::lambda::function_action<2, boost::lambda::detail::unspecified> , boost::tuples::tuple<int (Rect::* const)()const, const boost::lambda::lambda_functor<boost::lambda::placeholder<2> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >]' /usr/include/c++/4.2/bits/stl_algo.h:2795: instantiated from 'void std::__introsort_loop(_RandomAccessIterator, _RandomAccessIterator, _Size, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<boost::shared_ptr<Rect>*, std::vector<boost::shared_ptr<Rect>, std::allocator<boost::shared_ptr<Rect> > > >, _Size = int, _Compare = boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<3, boost::lambda::function_action<3, boost::lambda::detail::unspecified> , boost::tuples::tuple<const std::less<int>, const boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<2, boost::lambda::function_action<2, boost::lambda::detail::unspecified> , boost::tuples::tuple<int (Rect::* const)()const, const boost::lambda::lambda_functor<boost::lambda::placeholder<1> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >, const boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<2, boost::lambda::function_action<2, boost::lambda::detail::unspecified> , boost::tuples::tuple<int (Rect::* const)()const, const boost::lambda::lambda_functor<boost::lambda::placeholder<2> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >]' /usr/include/c++/4.2/bits/stl_algo.h:2866: instantiated from 'void std::sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<boost::shared_ptr<Rect>*, std::vector<boost::shared_ptr<Rect>, std::allocator<boost::shared_ptr<Rect> > > >, _Compare = boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<3, boost::lambda::function_action<3, boost::lambda::detail::unspecified> , boost::tuples::tuple<const std::less<int>, const boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<2, boost::lambda::function_action<2, boost::lambda::detail::unspecified> , boost::tuples::tuple<int (Rect::* const)()const, const boost::lambda::lambda_functor<boost::lambda::placeholder<1> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >, const boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<2, boost::lambda::function_action<2, boost::lambda::detail::unspecified> , boost::tuples::tuple<int (Rect::* const)()const, const boost::lambda::lambda_functor<boost::lambda::placeholder<2> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >]'

Can you please tell me what am I missing? It works when I have typedef Rect* RectPtr; Thank you for any pointer.