websocket example on your website does not compile with g++

[stkrwork]

Here is the console output: 09:55:21 Incremental Build of configuration Debug for project SiliconTest make pre-build main-build iod_generate_symbols ../main.cpp ../symbols.h

Building file: ../main.cpp Invoking: Cross G++ Compiler g++ -O0 -g3 -Wall -c -fmessage-length=0 -MMD -MP -MF"main.d" -MT"main.o" -o "main.o" "../main.cpp" In file included from /usr/include/silicon/remote_api.hh:4:0, from ../main.cpp:40: /usr/include/silicon/backends/ws_api.hh: In instantiation of ‘auto sl::make_ws_route(const E&) [with E = iod::function_call_exp<s::_message_t, s::_text_t>]’: /usr/include/silicon/remote_api.hh:40:41: required from ‘auto sl::make_ws_remote_api(P ...) [with P = {iod::function_call_exp<s::_message_t, s::_text_t>}]’ /usr/include/silicon/backends/websocketpp_remote_client.hh:106:34: required from ‘auto sl::make_wspp_remote_client(const P& ...) [with P = {iod::function_call_exp<s::_message_t, s::_text_t>}]’ ../main.cpp:100:59: required from here /usr/include/silicon/backends/ws_api.hh:144:21: error: no matching function for call to ‘route_cat(sl::ws_route<>, const iod::function_call_exp<s::_message_t, s::_text_t>&)’ return route_cat(ws_route<>(), e);

In file included from /usr/include/silicon/api.hh:12:0,
                 from ../main.cpp:39:
/usr/include/silicon/http_route.hh:284:8: note: candidate: template<class ... R1, class ... R2> auto sl::route_cat(const sl::http_route<R1 ...>&, const sl::http_route<R2 ...>&)
   auto route_cat(const http_route<R1...>& r1,
        ^~~~~~~~~
/usr/include/silicon/http_route.hh:284:8: note:   template argument deduction/substitution failed:
In file included from /usr/include/silicon/remote_api.hh:4:0,
                 from ../main.cpp:40:
/usr/include/silicon/backends/ws_api.hh:144:21: note:   ‘sl::ws_route<>’ is not derived from ‘const sl::http_route<R1 ...>’
     return route_cat(ws_route<>(), e);
            ~~~~~~~~~^~~~~~~~~~~~~~~~~
In file included from /usr/include/silicon/api.hh:12:0,
                 from ../main.cpp:39:
/usr/include/silicon/http_route.hh:291:8: note: candidate: template<class ... R1, class R2> auto sl::route_cat(const sl::http_route<R1 ...>&, const R2&)
   auto route_cat(const http_route<R1...>& r1,
        ^~~~~~~~~
/usr/include/silicon/http_route.hh:291:8: note:   template argument deduction/substitution failed:
In file included from /usr/include/silicon/remote_api.hh:4:0,
                 from ../main.cpp:40:
/usr/include/silicon/backends/ws_api.hh:144:21: note:   ‘sl::ws_route<>’ is not derived from ‘const sl::http_route<R1 ...>’
     return route_cat(ws_route<>(), e);
            ~~~~~~~~~^~~~~~~~~~~~~~~~~
In file included from /usr/include/silicon/api.hh:13:0,
                 from ../main.cpp:39:
/usr/include/silicon/rmq_route.hh:164:7: note: candidate: template<class ... R1, class ... R2> auto sl::route_cat(const sl::rmq::route<R1 ...>&, const sl::rmq::route<R2 ...>&)
  auto route_cat(rmq::route<R1...> const & r1,
       ^~~~~~~~~
/usr/include/silicon/rmq_route.hh:164:7: note:   template argument deduction/substitution failed:
In file included from /usr/include/silicon/remote_api.hh:4:0,
                 from ../main.cpp:40:
/usr/include/silicon/backends/ws_api.hh:144:21: note:   ‘sl::ws_route<>’ is not derived from ‘const sl::rmq::route<R1 ...>’
     return route_cat(ws_route<>(), e);
            ~~~~~~~~~^~~~~~~~~~~~~~~~~
In file included from /usr/include/silicon/api.hh:13:0,
                 from ../main.cpp:39:
/usr/include/silicon/rmq_route.hh:171:7: note: candidate: template<class ... R1, class R2> auto sl::route_cat(const sl::rmq::route<R1 ...>&, const R2&)
  auto route_cat(rmq::route<R1...> const & r1,
       ^~~~~~~~~
/usr/include/silicon/rmq_route.hh:171:7: note:   template argument deduction/substitution failed:
In file included from /usr/include/silicon/remote_api.hh:4:0,
                 from ../main.cpp:40:
/usr/include/silicon/backends/ws_api.hh:144:21: note:   ‘sl::ws_route<>’ is not derived from ‘const sl::rmq::route<R1 ...>’
     return route_cat(ws_route<>(), e);
            ~~~~~~~~~^~~~~~~~~~~~~~~~~
/usr/include/silicon/backends/ws_api.hh:118:8: note: candidate: template<class S, class P, class SS> auto sl::route_cat(sl::ws_route<S, P>, const iod::symbol<SS>&)
   auto route_cat(ws_route<S, P> r,  const iod::symbol<SS>& s)
        ^~~~~~~~~
/usr/include/silicon/backends/ws_api.hh:118:8: note:   template argument deduction/substitution failed:
/usr/include/silicon/backends/ws_api.hh:144:21: note:   ‘const iod::function_call_exp<s::_message_t, s::_text_t>’ is not derived from ‘const iod::symbol<SS>’
     return route_cat(ws_route<>(), e);
            ~~~~~~~~~^~~~~~~~~~~~~~~~~
/usr/include/silicon/backends/ws_api.hh:124:8: note: candidate: template<class S, class P, class T> auto sl::route_cat(sl::ws_route<S, P>, const sl::params_t<T>&)
   auto route_cat(ws_route<S, P> r,  const params_t<T>& s)
        ^~~~~~~~~
/usr/include/silicon/backends/ws_api.hh:124:8: note:   template argument deduction/substitution failed:
/usr/include/silicon/backends/ws_api.hh:144:21: note:   ‘const iod::function_call_exp<s::_message_t, s::_text_t>’ is not derived from ‘const sl::params_t<T>’
     return route_cat(ws_route<>(), e);
            ~~~~~~~~~^~~~~~~~~~~~~~~~~
/usr/include/silicon/backends/ws_api.hh:130:8: note: candidate: template<class S, class P, class L, class R> auto sl::route_cat(sl::ws_route<S, P>, const iod::div_exp<L, R>&)
   auto route_cat(ws_route<S, P> r, const iod::div_exp<L, R>& e)
        ^~~~~~~~~
/usr/include/silicon/backends/ws_api.hh:130:8: note:   template argument deduction/substitution failed:
/usr/include/silicon/backends/ws_api.hh:144:21: note:   ‘const iod::function_call_exp<s::_message_t, s::_text_t>’ is not derived from ‘const iod::div_exp<L, R>’
     return route_cat(ws_route<>(), e);
            ~~~~~~~~~^~~~~~~~~~~~~~~~~
/usr/include/silicon/backends/ws_api.hh:136:8: note: candidate: template<class S, class P, class L, class R> auto sl::route_cat(sl::ws_route<S, P>, const iod::mult_exp<L, R>&)
   auto route_cat(ws_route<S, P> r, const iod::mult_exp<L, R>& e)
        ^~~~~~~~~
/usr/include/silicon/backends/ws_api.hh:136:8: note:   template argument deduction/substitution failed:
/usr/include/silicon/backends/ws_api.hh:144:21: note:   ‘const iod::function_call_exp<s::_message_t, s::_text_t>’ is not derived from ‘const iod::mult_exp<L, R>’
     return route_cat(ws_route<>(), e);
            ~~~~~~~~~^~~~~~~~~~~~~~~~~
In file included from ../main.cpp:40:0:
/usr/include/silicon/remote_api.hh: In instantiation of ‘auto sl::make_ws_remote_api(P ...) [with P = {iod::function_call_exp<s::_message_t, s::_text_t>}]’:
/usr/include/silicon/backends/websocketpp_remote_client.hh:106:34:   required from ‘auto sl::make_wspp_remote_client(const P& ...) [with P = {iod::function_call_exp<s::_message_t, s::_text_t>}]’
../main.cpp:100:59:   required from here
/usr/include/silicon/remote_api.hh:40:27: error: invalid use of void expression
     return std::make_tuple(make_ws_route(procs)...);
            ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/silicon/backends/websocketpp.hh:13:0,
                 from ../main.cpp:41:
/usr/include/silicon/backends/websocketpp_remote_client.hh: In instantiation of ‘auto sl::make_wspp_remote_client(const P& ...) [with P = {iod::function_call_exp<s::_message_t, s::_text_t>}]’:
../main.cpp:100:59:   required from here
/usr/include/silicon/backends/websocketpp_remote_client.hh:106:48: error: ‘void api’ has incomplete type
     auto api = make_ws_remote_api(procedures...);
                                                ^
/usr/include/silicon/backends/websocketpp_remote_client.hh:108:36: error: use of ‘auto iod::assignable<E>::operator=(L&&) const [with L = std::shared_ptr<sl::wspp_remote_client_ctx>&; E = s::_silicon_ctx_t]’ before deduction of ‘auto’
     auto accessor = D(_silicon_ctx = c);
                       ~~~~~~~~~~~~~^~~
/usr/include/silicon/backends/websocketpp_remote_client.hh: In instantiation of ‘struct sl::make_wspp_remote_client(const P& ...) [with P = {iod::function_call_exp<s::_message_t, s::_text_t>}]::<lambda(struct sl::wspp_connection)>’:
/usr/include/silicon/backends/websocketpp_remote_client.hh:116:5:   required from ‘auto sl::make_wspp_remote_client(const P& ...) [with P = {iod::function_call_exp<s::_message_t, s::_text_t>}]’
../main.cpp:100:59:   required from here
/usr/include/silicon/backends/websocketpp_remote_client.hh:111:13: error: using invalid field ‘sl::make_wspp_remote_client(const P& ...)::<lambda(sl::wspp_connection)>::<rc capture>’
     return [rc] (wspp_connection c) {
             ^~
../main.cpp: In function ‘int main(int, char**)’:
../main.cpp:100:59: error: ‘void rclient’ has incomplete type
   auto rclient = make_wspp_remote_client( _message(_text) );
                                                           ^
In file included from ../main.cpp:39:0:
/usr/include/silicon/api.hh: In instantiation of ‘sl::parse_api(std::tuple<_Args2 ...>, R)::<lambda(auto:65)>::<lambda(auto:67)> [with auto:67 = iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >; auto:65 = iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >; R = sl::ws_route<>; T = {iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >}]’:
/usr/include/iod/utils.hh:24:19:   required from ‘decltype(auto) iod::static_if_<false>::operator()(F, G, A&& ...) [with F = sl::parse_api(std::tuple<_Args2 ...>, R)::<lambda(auto:65)> [with auto:65 = iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >; R = sl::ws_route<>; T = {iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >}]::<lambda(auto:66)>; G = sl::parse_api(std::tuple<_Args2 ...>, R)::<lambda(auto:65)> [with auto:65 = iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >; R = sl::ws_route<>; T = {iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >}]::<lambda(auto:67)>; A = {iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >&}]’
/usr/include/iod/utils.hh:31:27:   required from ‘decltype(auto) iod::static_if(F, G, A&& ...) [with bool C = false; F = sl::parse_api(std::tuple<_Args2 ...>, R)::<lambda(auto:65)> [with auto:65 = iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >; R = sl::ws_route<>; T = {iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >}]::<lambda(auto:66)>; G = sl::parse_api(std::tuple<_Args2 ...>, R)::<lambda(auto:65)> [with auto:65 = iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >; R = sl::ws_route<>; T = {iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >}]::<lambda(auto:67)>; A = {iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >&}]’
/usr/include/silicon/api.hh:210:59:   required from ‘sl::parse_api(std::tuple<_Args2 ...>, R)::<lambda(auto:65)> [with auto:65 = iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >; R = sl::ws_route<>; T = {iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >}]’
/usr/include/iod/foreach.hh:116:29:   required from ‘decltype(auto) iod::internal::tuple_foreach(F, T1&&, T&& ...) [with F = sl::parse_api(std::tuple<_Args2 ...>, R) [with R = sl::ws_route<>; T = {iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >}]::<lambda(auto:65)>; T1 = std::tuple<iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> > >&; T = {}]’
/usr/include/iod/foreach.hh:146:44:   required from ‘decltype(auto) iod::internal::foreach_tuple_caller<T>::run(F, std::index_sequence<I ...>) [with F = sl::parse_api(std::tuple<_Args2 ...>, R) [with R = sl::ws_route<>; T = {iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >}]::<lambda(auto:65)>; long unsigned int ...I = {0ul}; T = std::tuple<std::tuple<iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> > >&>; std::index_sequence<I ...> = std::integer_sequence<long unsigned int, 0ul>]’
/usr/include/iod/foreach.hh:152:76:   required from ‘decltype(auto) iod::internal::foreach_tuple_caller<T>::operator|(F) [with F = sl::parse_api(std::tuple<_Args2 ...>, R) [with R = sl::ws_route<>; T = {iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >}]::<lambda(auto:65)>; T = std::tuple<std::tuple<iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> > >&>]’
/usr/include/silicon/api.hh:208:25:   required from ‘auto sl::parse_api(std::tuple<_Args2 ...>, R) [with R = sl::ws_route<>; T = {iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >}]’
/usr/include/silicon/backends/ws_api.hh:150:21:   required from ‘auto sl::ws_api(P ...) [with P = {iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >}]’
../main.cpp:110:5:   required from here
/usr/include/silicon/api.hh:216:29: error: no matching function for call to ‘route_cat(sl::ws_route<>&, iod::function_call_exp<s::_broadcast_t, s::_message_t>&)’
           auto r = route_cat(route, m.left);
                    ~~~~~~~~~^~~~~~~~~~~~~~~
In file included from /usr/include/silicon/api.hh:12:0,
                 from ../main.cpp:39:
/usr/include/silicon/http_route.hh:284:8: note: candidate: template<class ... R1, class ... R2> auto sl::route_cat(const sl::http_route<R1 ...>&, const sl::http_route<R2 ...>&)
   auto route_cat(const http_route<R1...>& r1,
        ^~~~~~~~~
/usr/include/silicon/http_route.hh:284:8: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:39:0:
/usr/include/silicon/api.hh:216:29: note:   ‘sl::ws_route<>’ is not derived from ‘const sl::http_route<R1 ...>’
           auto r = route_cat(route, m.left);
                    ~~~~~~~~~^~~~~~~~~~~~~~~
In file included from /usr/include/silicon/api.hh:12:0,
                 from ../main.cpp:39:
/usr/include/silicon/http_route.hh:291:8: note: candidate: template<class ... R1, class R2> auto sl::route_cat(const sl::http_route<R1 ...>&, const R2&)
   auto route_cat(const http_route<R1...>& r1,
        ^~~~~~~~~
/usr/include/silicon/http_route.hh:291:8: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:39:0:
/usr/include/silicon/api.hh:216:29: note:   ‘sl::ws_route<>’ is not derived from ‘const sl::http_route<R1 ...>’
           auto r = route_cat(route, m.left);
                    ~~~~~~~~~^~~~~~~~~~~~~~~
In file included from /usr/include/silicon/api.hh:13:0,
                 from ../main.cpp:39:
/usr/include/silicon/rmq_route.hh:164:7: note: candidate: template<class ... R1, class ... R2> auto sl::route_cat(const sl::rmq::route<R1 ...>&, const sl::rmq::route<R2 ...>&)
  auto route_cat(rmq::route<R1...> const & r1,
       ^~~~~~~~~
/usr/include/silicon/rmq_route.hh:164:7: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:39:0:
/usr/include/silicon/api.hh:216:29: note:   ‘sl::ws_route<>’ is not derived from ‘const sl::rmq::route<R1 ...>’
           auto r = route_cat(route, m.left);
                    ~~~~~~~~~^~~~~~~~~~~~~~~
In file included from /usr/include/silicon/api.hh:13:0,
                 from ../main.cpp:39:
/usr/include/silicon/rmq_route.hh:171:7: note: candidate: template<class ... R1, class R2> auto sl::route_cat(const sl::rmq::route<R1 ...>&, const R2&)
  auto route_cat(rmq::route<R1...> const & r1,
       ^~~~~~~~~
/usr/include/silicon/rmq_route.hh:171:7: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:39:0:
/usr/include/silicon/api.hh:216:29: note:   ‘sl::ws_route<>’ is not derived from ‘const sl::rmq::route<R1 ...>’
           auto r = route_cat(route, m.left);
                    ~~~~~~~~~^~~~~~~~~~~~~~~
In file included from /usr/include/silicon/remote_api.hh:4:0,
                 from ../main.cpp:40:
/usr/include/silicon/backends/ws_api.hh:136:8: note: candidate: template<class S, class P, class L, class R> auto sl::route_cat(sl::ws_route<S, P>, const iod::mult_exp<L, R>&)
   auto route_cat(ws_route<S, P> r, const iod::mult_exp<L, R>& e)
        ^~~~~~~~~
/usr/include/silicon/backends/ws_api.hh:136:8: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:39:0:
/usr/include/silicon/api.hh:216:29: note:   ‘iod::function_call_exp<s::_broadcast_t, s::_message_t>’ is not derived from ‘const iod::mult_exp<L, R>’
           auto r = route_cat(route, m.left);
                    ~~~~~~~~~^~~~~~~~~~~~~~~
In file included from /usr/include/silicon/remote_api.hh:4:0,
                 from ../main.cpp:40:
/usr/include/silicon/backends/ws_api.hh:130:8: note: candidate: template<class S, class P, class L, class R> auto sl::route_cat(sl::ws_route<S, P>, const iod::div_exp<L, R>&)
   auto route_cat(ws_route<S, P> r, const iod::div_exp<L, R>& e)
        ^~~~~~~~~
/usr/include/silicon/backends/ws_api.hh:130:8: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:39:0:
/usr/include/silicon/api.hh:216:29: note:   ‘iod::function_call_exp<s::_broadcast_t, s::_message_t>’ is not derived from ‘const iod::div_exp<L, R>’
           auto r = route_cat(route, m.left);
                    ~~~~~~~~~^~~~~~~~~~~~~~~
In file included from /usr/include/silicon/remote_api.hh:4:0,
                 from ../main.cpp:40:
/usr/include/silicon/backends/ws_api.hh:124:8: note: candidate: template<class S, class P, class T> auto sl::route_cat(sl::ws_route<S, P>, const sl::params_t<T>&)
   auto route_cat(ws_route<S, P> r,  const params_t<T>& s)
        ^~~~~~~~~
/usr/include/silicon/backends/ws_api.hh:124:8: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:39:0:
/usr/include/silicon/api.hh:216:29: note:   ‘iod::function_call_exp<s::_broadcast_t, s::_message_t>’ is not derived from ‘const sl::params_t<T>’
           auto r = route_cat(route, m.left);
                    ~~~~~~~~~^~~~~~~~~~~~~~~
In file included from /usr/include/silicon/remote_api.hh:4:0,
                 from ../main.cpp:40:
/usr/include/silicon/backends/ws_api.hh:118:8: note: candidate: template<class S, class P, class SS> auto sl::route_cat(sl::ws_route<S, P>, const iod::symbol<SS>&)
   auto route_cat(ws_route<S, P> r,  const iod::symbol<SS>& s)
        ^~~~~~~~~
/usr/include/silicon/backends/ws_api.hh:118:8: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:39:0:
/usr/include/silicon/api.hh:216:29: note:   ‘iod::function_call_exp<s::_broadcast_t, s::_message_t>’ is not derived from ‘const iod::symbol<SS>’
           auto r = route_cat(route, m.left);
                    ~~~~~~~~~^~~~~~~~~~~~~~~
../main.cpp:110:5: error: ‘void server_api’ has incomplete type
     );
     ^
In file included from /usr/include/iod/grammar.hh:6:0,
                 from /usr/include/iod/sio.hh:9,
                 from /usr/include/silicon/api.hh:4,
                 from ../main.cpp:39:
/usr/include/iod/foreach.hh: At global scope:
/usr/include/iod/foreach.hh:27:5: error: ‘void iod::internal::tuple_foreach_impl(std::enable_if_t<std::is_same<void, Ret>::value>*, std::index_sequence<TSize ...>, F, T&& ...) [with Ret = void; F = sl::parse_api(std::tuple<_Args2 ...>, R) [with R = sl::ws_route<>; T = {iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >}]::<lambda(auto:65)>; long unsigned int ...TSize = {0ul}; long unsigned int ...Nargs = {}; T = {std::tuple<iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> > >&}; std::enable_if_t<std::is_same<void, Ret>::value> = void; std::index_sequence<TSize ...> = std::integer_sequence<long unsigned int, 0ul>]’, declared using local type ‘sl::parse_api(std::tuple<_Args2 ...>, R) [with R = sl::ws_route<>; T = {iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >}]::<lambda(auto:65)>’, is used but never defined [-fpermissive]
     tuple_foreach_impl(std::enable_if_t<std::is_same<void, Ret>::value>*,
     ^~~~~~~~~~~~~~~~~~
/usr/include/iod/foreach.hh:27:5: warning: ‘void iod::internal::tuple_foreach_impl(std::enable_if_t<std::is_same<void, Ret>::value>*, std::index_sequence<TSize ...>, F, T&& ...) [with Ret = void; F = sl::parse_api(std::tuple<_Args2 ...>, R) [with R = sl::ws_route<>; T = {iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> >}]::<lambda(auto:65)>; long unsigned int ...TSize = {0ul}; long unsigned int ...Nargs = {}; T = {std::tuple<iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, main(int, char**)::<lambda(auto:136)> > >&}]’ used but never defined
make: *** [main.o] Error 1
subdir.mk:18: recipe for target 'main.o' failed

09:55:28 Build Finished (took 6s.682ms)

I did fix the bug that a set was not regonized by adding the required include.

[stkrwork]

It does also not compile with clang++. Here is the log:

10:16:43 Incremental Build of configuration Debug for project SiliconTest make pre-build main-build iod_generate_symbols ../main.cpp ../symbols.h

Building file: ../main.cpp Invoking: Cross G++ Compiler clang++ -std=c++14 -O0 -g3 -Wall -c -fmessage-length=0 -MMD -MP -MF"main.d" -MT"main.o" -o "main.o" "../main.cpp" In file included from ../main.cpp:40: In file included from /include/silicon/remote_api.hh:4: /include/silicon/backends/ws_api.hh:144:12: error: no matching function for call to 'route_cat' return route_cat(ws_route<>(), e); ^~~~~ /include/silicon/remote_api.hh:40:28: note: in instantiation of function template specialization 'sl::make_ws_route<iod::function_call_exp<s::_message_t, s::_text_t> >' requested here return std::make_tuple(make_ws_route(procs)...); ^ /include/silicon/backends/websocketpp_remote_client.hh:106:16: note: in instantiation of function template specialization 'sl::make_ws_remote_api<iod::function_call_exp<s::_message_t, s::_text_t> >' requested here auto api = make_ws_remote_api(procedures...); ^ ../main.cpp:100:18: note: in instantiation of function template specialization 'sl::make_wspp_remote_client<iod::function_call_exp<s::_message_t, s::_text_t> >' requested here auto rclient = make_wspp_remote_client( _message(_text) ); ^ /include/silicon/http_route.hh:284:8: note: candidate template ignored: could not match 'http_route' against 'ws_route' auto route_cat(const http_route<R1...>& r1, ^ /include/silicon/http_route.hh:291:8: note: candidate template ignored: could not match 'http_route' against 'ws_route' auto route_cat(const http_route<R1...>& r1, ^ /include/silicon/rmq_route.hh:164:7: note: candidate template ignored: could not match 'route' against 'ws_route' auto route_cat(rmq::route<R1...> const & r1, ^ /include/silicon/rmq_route.hh:171:7: note: candidate template ignored: could not match 'route' against 'ws_route' auto route_cat(rmq::route<R1...> const & r1, ^ /include/silicon/backends/ws_api.hh:118:8: note: candidate template ignored: could not match 'symbol' against 'function_call_exp' auto route_cat(ws_route<S, P> r, const iod::symbol& s) ^ /include/silicon/backends/ws_api.hh:124:8: note: candidate template ignored: could not match 'params_t' against 'function_call_exp' auto route_cat(ws_route<S, P> r, const params_t& s) ^ /include/silicon/backends/ws_api.hh:130:8: note: candidate template ignored: could not match 'div_exp' against 'function_call_exp' auto route_cat(ws_route<S, P> r, const iod::div_exp<L, R>& e) ^ /include/silicon/backends/ws_api.hh:136:8: note: candidate template ignored: could not match 'mult_exp' against 'function_call_exp' auto route_cat(ws_route<S, P> r, const iod::mult_exp<L, R>& e) ^ In file included from ../main.cpp:39: /include/silicon/api.hh:216:20: error: no matching function for call to 'route_cat' auto r = route_cat(route, m.left); ^~~~~ /include/iod/utils.hh:24:14: note: in instantiation of function template specialization 'sl::parse_api(std::tuple<assign_exp<function_call_exp<_broadcast_t, _message_t>, (lambda at ../main.cpp:106:28)> >, sl::ws_route<std::tuple<>, iod::sio<> >)::(anonymous class)::operator()(iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, (lambda at ../main.cpp:106:28)>)::(anonymous class)::operator()<iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, (lambda at ../main.cpp:106:28)> >' requested here return _else(std::forward(args)...); ^ /include/iod/utils.hh:31:12: note: in instantiation of function template specialization 'iod::staticif::operator()<(lambda at /include/silicon/api.hh:211:9), (lambda at /include/silicon/api.hh:215:9), iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, (lambda at ../main.cpp:106:28)> &>' requested here return staticif()(_if, _else, std::forward(args)...); ^ /include/silicon/api.hh:210:14: note: in instantiation of function template specialization 'iod::static_if<false, (lambda at /include/silicon/api.hh:211:9), (lambda at /include/silicon/api.hh:215:9), iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, (lambda at ../main.cpp:106:28)> &>' requested here return static_if<is_tuple<decltype(m.right)>::value>( ^ /include/iod/foreach.hh:116:28: note: in instantiation of function template specialization 'sl::parse_api(std::tuple<assign_exp<function_call_exp<_broadcast_t, _message_t>, (lambda at ../main.cpp:106:28)> >, sl::ws_route<std::tuple<>, iod::sio<> >)::(anonymous class)::operator()<iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, (lambda at ../main.cpp:106:28)> >' requested here using Ret = decltype(f(std::get<0>(t1), std::get<0>(ts)...)); ^ /include/iod/foreach.hh:146:31: note: in instantiation of function template specialization 'iod::internal::tuple_foreach<(lambda at /include/silicon/api.hh:208:27), std::tuple<iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, (lambda at ../main.cpp:106:28)> > &>' requested here return iod::internal::tupleforeach(f, std::get(t)...);
^ /include/iod/foreach.hh:152:16: note: in instantiation of function template specialization 'iod::internal::foreach_tuple_caller<std::tuple<std::tuple<iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, (lambda at ../main.cpp:106:28)> > &> >::run<(lambda at /include/silicon/api.hh:208:27), 0>' requested here return run(f, std::make_index_sequence<std::tuple_size::value>{}); ^ /include/silicon/api.hh:208:25: note: in instantiation of function template specialization 'iod::internal::foreach_tuple_caller<std::tuple<std::tuple<iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, (lambda at ../main.cpp:106:28)> > &> >::operator|<(lambda at /include/silicon/api.hh:208:27)>' requested here return foreach(api) | [&] (auto m) // m should be iod::assign_exp ^ /include/silicon/backends/ws_api.hh:150:12: note: in instantiation of function template specialization 'sl::parse_api<sl::ws_route<std::tuple<>, iod::sio<> >, iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, (lambda at ../main.cpp:106:28)> >' requested here return parse_api(std::make_tuple(procs...), ws_route<>()); ^ ../main.cpp:103:21: note: in instantiation of function template specialization 'sl::ws_api<iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, (lambda at ../main.cpp:106:28)> >' requested here auto server_api = ws_api( ^ /include/silicon/http_route.hh:284:8: note: candidate template ignored: could not match 'http_route' against 'ws_route' auto route_cat(const http_route<R1...>& r1, ^ /include/silicon/http_route.hh:291:8: note: candidate template ignored: could not match 'http_route' against 'ws_route' auto route_cat(const http_route<R1...>& r1, ^ /include/silicon/rmq_route.hh:164:7: note: candidate template ignored: could not match 'route' against 'ws_route' auto route_cat(rmq::route<R1...> const & r1, ^ /include/silicon/rmq_route.hh:171:7: note: candidate template ignored: could not match 'route' against 'ws_route' auto route_cat(rmq::route<R1...> const & r1, ^ /include/silicon/backends/ws_api.hh:118:8: note: candidate template ignored: could not match 'symbol' against 'function_call_exp' auto route_cat(ws_route<S, P> r, const iod::symbol& s) ^ /include/silicon/backends/ws_api.hh:124:8: note: candidate template ignored: could not match 'params_t' against 'function_call_exp' auto route_cat(ws_route<S, P> r, const params_t& s) ^ /include/silicon/backends/ws_api.hh:130:8: note: candidate template ignored: could not match 'div_exp' against 'function_call_exp' auto route_cat(ws_route<S, P> r, const iod::div_exp<L, R>& e) ^ /include/silicon/backends/ws_api.hh:136:8: note: candidate template ignored: could not match 'mult_exp' against 'function_call_exp' auto route_cat(ws_route<S, P> r, const iod::mult_exp<L, R>& e) ^ In file included from ../main.cpp:39: In file included from /include/silicon/api.hh:4: In file included from /include/iod/sio.hh:9: In file included from /include/iod/grammar.hh:6: /include/iod/foreach.hh:22:14: error: no matching function for call to object of type '(lambda at /include/silicon/api.hh:208:27)' return f(std::get(ts)...); ^ /include/iod/foreach.hh:41:45: note: in instantiation of function template specialization 'iod::internal::tuple_foreach_i<0, (lambda at /include/silicon/api.hh:208:27), std::tuple<iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, (lambda at ../main.cpp:106:28)> > &>' requested here return std::make_tuple(iod::internal::tuple_foreach_i(f, std::forward(ts)...)...); ^ /include/iod/foreach.hh:117:29: note: in instantiation of function template specialization 'iod::internal::tuple_foreach_impl<int, (lambda at /include/silicon/api.hh:208:27), 0, std::tuple<iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, (lambda at ../main.cpp:106:28)> > &>' requested here return iod::internal::tuple_foreach_impl(0, seq{}, ^ /include/iod/foreach.hh:146:31: note: in instantiation of function template specialization 'iod::internal::tuple_foreach<(lambda at /include/silicon/api.hh:208:27), std::tuple<iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, (lambda at ../main.cpp:106:28)> > &>' requested here return iod::internal::tupleforeach(f, std::get(t)...);
^ /include/iod/foreach.hh:152:16: note: in instantiation of function template specialization 'iod::internal::foreach_tuple_caller<std::tuple<std::tuple<iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, (lambda at ../main.cpp:106:28)> > &> >::run<(lambda at /include/silicon/api.hh:208:27), 0>' requested here return run(f, std::make_index_sequence<std::tuple_size::value>{}); ^ /include/silicon/api.hh:208:25: note: in instantiation of function template specialization 'iod::internal::foreach_tuple_caller<std::tuple<std::tuple<iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, (lambda at ../main.cpp:106:28)> > &> >::operator|<(lambda at /include/silicon/api.hh:208:27)>' requested here return foreach(api) | [&] (auto m) // m should be iod::assign_exp ^ /include/silicon/backends/ws_api.hh:150:12: note: in instantiation of function template specialization 'sl::parse_api<sl::ws_route<std::tuple<>, iod::sio<> >, iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, (lambda at ../main.cpp:106:28)> >' requested here return parse_api(std::make_tuple(procs...), ws_route<>()); ^ ../main.cpp:103:21: note: in instantiation of function template specialization 'sl::ws_api<iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, (lambda at ../main.cpp:106:28)> >' requested here auto server_api = ws_api( ^ /include/silicon/api.hh:208:27: note: candidate template ignored: substitution failure [with $0 = iod::assign_exp<iod::function_call_exp<s::_broadcast_t, s::_message_t>, (lambda at ../main.cpp:106:28)>] return foreach(api) | [&] (auto m) // m should be iod::assign_exp ^ 3 errors generated. make: *** [main.o] Error 1 subdir.mk:18: recipe for target 'main.o' failed

10:16:52 Build Finished (took 8s.181ms)

Thanks for this report, I'll have a look this week end. I'll also add the compilation of this example too travis-ci.

[matt-42]

Which version of g++ and clang do you have ? I have no problem compiling the websocket broadcast example (examples/ws_broadcast_server.cc) with g++6.3.1 and clang-3.9.1.

[stkrwork]

i used the example on your documentation website. I already found the error, there is a difference at rcclient. the parameters passed on to it in the code on the docu site is different than in the code in the examples/ folder.

This is the example I used that time: http://siliconframework.org/docs/websocketpp.html

[matt-42]

I'll replace the code of this page by a link to the real example.