blog example compilation fails about silicon

[matt-42]

G++ fails at compiling this example. It compiles fine with clang.

[tex]

It does not:

msvobod :: tmp/silicon/examples ‹master› » clang -std=c++14 blog.cc -I ../ -I ../iod/iod/ -lmicrohttpd -o hello_world 1 ↵
In file included from blog.cc:1:
In file included from ../silicon/backends/mhd.hh:3:
In file included from /usr/bin/../lib64/gcc/x86_64-unknown-linux-gnu/5.3.0/../../../../include/c++/5.3.0/memory:62:
In file included from /usr/bin/../lib64/gcc/x86_64-unknown-linux-gnu/5.3.0/../../../../include/c++/5.3.0/bits/stl_algobase.h:64:
In file included from /usr/bin/../lib64/gcc/x86_64-unknown-linux-gnu/5.3.0/../../../../include/c++/5.3.0/bits/stl_pair.h:59:
In file included from /usr/bin/../lib64/gcc/x86_64-unknown-linux-gnu/5.3.0/../../../../include/c++/5.3.0/bits/move.h:57:
/usr/bin/../lib64/gcc/x86_64-unknown-linux-gnu/5.3.0/../../../../include/c++/5.3.0/type_traits:545:14: fatal error: recursive template instantiation exceeded maximum depth of
256
: public _or<is_lvalue_reference<_Tp>,
^
/usr/bin/../lib64/gcc/x86_64-unknown-linux-gnu/5.3.0/../../../../include/c++/5.3.0/type_traits:115:26: note: in instantiation of template class
'std::is_reference<std::_Tuple_impl<16, sl::mhd_response *&, MHD_Connection *&> &>' requested here
: public conditional<_B1::value, _B1, _B2>::type
^
/usr/bin/../lib64/gcc/x86_64-unknown-linux-gnu/5.3.0/../../../../include/c++/5.3.0/type_traits:120:14: note: in instantiation of template class
'std::_or<std::is_reference<std::_Tuple_impl<16, sl::mhd_response *&, MHD_Connection *&> &>, std::is_void<std::_Tuple_impl<16, sl::mhd_response *&, MHD_Connection *&>
&> >' requested here
: public conditional<_B1::value, _B1, _or<_B2, _B3, _Bn...>>::type
^
/usr/bin/../lib64/gcc/x86_64-unknown-linux-gnu/5.3.0/../../../../include/c++/5.3.0/type_traits:148:39: note: in instantiation of template class
'std::_or<std::is_function<std::_Tuple_impl<16, sl::mhd_response *&, MHD_Connection *&> &>, std::is_reference<std::_Tuple_impl<16, sl::mhd_response *&, MHD_Connection
*&> &>, std::is_void<std::_Tuple_impl<16, sl::mhd_response *&, MHD_Connection *&> &> >' requested here
: public integral_constant<bool, !_Pp::value>
^
/usr/bin/../lib64/gcc/x86_64-unknown-linux-gnu/5.3.0/../../../../include/c++/5.3.0/type_traits:565:14: note: in instantiation of template class
'std::_not<std::_or<std::is_function<std::_Tuple_impl<16, sl::mhd_response *&, MHD_Connection *&> &>, std::is_reference<std::_Tuple_impl<16, sl::mhd_response *&,
MHD_Connection *&> &>, std::is_void<std::_Tuple_impl<16, sl::mhd_response *&, MHD_Connection *&> &> > >' requested here
: public _not<_or<is_function<_Tp>, is_reference<_Tp>,
^
/usr/bin/../lib64/gcc/x86_64-unknown-linux-gnu/5.3.0/../../../../include/c++/5.3.0/type_traits:115:26: note: in instantiation of template class
'std::is_object<std::_Tuple_impl<16, sl::mhd_response *&, MHD_Connection *&> &>' requested here
: public conditional<_B1::value, _B1, _B2>::type
^
/usr/bin/../lib64/gcc/x86_64-unknown-linux-gnu/5.3.0/../../../../include/c++/5.3.0/type_traits:602:14: note: (skipping 247 contexts in backtrace; use
-ftemplate-backtrace-limit=0 to see all)
: public _or<is_object<_Tp>, is_reference<_Tp>>::type
^
/usr/local/include/iod/di.hh:145:42: note: in instantiation of function template specialization 'std::forward_as_tuple<sl::mhd_session_cookie &, sl::sqlite_connection_factory
&, sl::sql_orm_factory<sl::sqlite_connection, iod::sio<s::_id_t::variable_type<int, iod::sio<s::_auto_increment_t, s::_primary_key_t> >,
s::_login_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> >, s::_password_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > > > &,
sl::sql_orm_factory<sl::sqlite_connection, iod::sio<s::_id_t::variable_type<int, iod::sio<s::_auto_increment_t, s::_primary_key_t> >, s::_user_id_t::variable_type<int,
iod::sio<s::_read_only_t> >, s::_title_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> >, s::_body_t::variable_typestd::__cxx11::basic_string<char,
iod::sio<> > > > &, sl::hashmap_session_factory &, iod::sio<s::_login_t::variable_type<std::__cxx11::basic_string, iod::sio<> >,
s::_password_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > > &, sl::mhd_request *&, sl::mhd_response *&, MHD_Connection *&, sl::mhd_session_cookie &,
sl::sqlite_connection_factory &, sl::sql_orm_factory<sl::sqlite_connection, iod::sio<s::_id_t::variable_type<int, iod::sio<s::_auto_increment_t, s::_primary_key_t> >,
s::_login_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> >, s::_password_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > > > &,
sl::sql_orm_factory<sl::sqlite_connection, iod::sio<s::_id_t::variable_type<int, iod::sio<s::_auto_increment_t, s::_primary_key_t> >, s::_user_id_t::variable_type<int,
iod::sio<s::_read_only_t> >, s::_title_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> >, s::_body_t::variable_typestd::__cxx11::basic_string<char,
iod::sio<> > > > &, sl::hashmap_session_factory &, iod::sio<s::_login_t::variable_type<std::__cxx11::basic_string, iod::sio<> >,
s::_password_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > > &, sl::mhd_request *&, sl::mhd_response *&, MHD_Connection *&>' requested here
return di_meta_instantiate(std::forward_as_tuple(to_inject...),
^
../silicon/service.hh:36:5: note: in instantiation of member function 'sl::ws_handler<sl::procedure<sl::http_route<sl::http_post, std::tuple<s::_login_t>, iod::sio<>,
iod::sio<>, iod::sio<s::_login_t::variable_type<std::__cxx11::basic_string, iod::sio<> >, s::_password_t::variable_typestd::__cxx11::basic_string<char, iod::sio<>
> > >, iod::sio<s::_login_t::variable_type<std::__cxx11::basic_string, iod::sio<> >, s::_password_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > >,
void, (lambda at ../silicon/api.hh:77:12)>, std::tuple<sl::mhd_session_cookie, sl::sqlite_connection_factory, sl::sql_orm_factory<sl::sqlite_connection,
iod::sio<s::_id_t::variable_type<int, iod::sio<s::_auto_increment_t, s::_primary_key_t> >, s::_login_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> >,
s::_password_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > > >, sl::sql_orm_factory<sl::sqlite_connection, iod::sio<s::_id_t::variable_type<int,
iod::sio<s::_auto_increment_t, s::_primary_key_t> >, s::_user_id_t::variable_type<int, iod::sio<s::_read_only_t> >,
s::_title_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> >, s::_body_t::variable_typestd::_cxx11::basic_string<char, iod::sio<> > > >,
sl::hashmap_session_factory >, sl::mhd_json_service_utils, sl::mhd_request *, sl::mhd_response *, MHD_Connection *>::operator()' requested here
ws_handler(P proc) : procedure(proc) {}
^
../silicon/service.hh:165:19: note: in instantiation of member function 'sl::ws_handler<sl::procedure<sl::http_route<sl::http_post, std::tuple<s::_login_t>, iod::sio<>,
iod::sio<>, iod::sio<s::_login_t::variable_type<std::__cxx11::basic_string, iod::sio<> >, s::_password_t::variable_typestd::__cxx11::basic_string<char, iod::sio<>
> > >, iod::sio<s::_login_t::variable_type<std::__cxx11::basic_string, iod::sio<> >, s::_password_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > >,
void, (lambda at ../silicon/api.hh:77:12)>, std::tuple<sl::mhd_session_cookie, sl::sqlite_connection_factory, sl::sql_orm_factory<sl::sqlite_connection,
iod::sio<s::_id_t::variable_type<int, iod::sio<s::_auto_increment_t, s::_primary_key_t> >, s::_login_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> >,
s::_password_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > > >, sl::sql_orm_factory<sl::sqlite_connection, iod::sio<s::_id_t::variable_type<int,
iod::sio<s::_auto_increment_t, s::_primary_key_t> >, s::_user_id_t::variable_type<int, iod::sio<s::_read_only_t> >,
s::_title_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> >, s::_body_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > > >,
sl::hashmap_session_factory >, sl::mhd_json_service_utils, sl::mhd_request *, sl::mhd_response *, MHD_Connection *>::ws_handler' requested here
new ws_handler<P, middlewares_type, S, ARGS...>(f.content);
^
../silicon/service.hh:121:7: note: in instantiation of function template specialization 'sl::service<sl::mhd_json_service_utils, std::tuple<sl::mhd_session_cookie,
sl::sqlite_connection_factory, sl::sql_orm_factory<sl::sqlite_connection, iod::sio<s::_id_t::variable_type<int, iod::sio<s::_auto_increment_t, s::_primary_key_t> >,
s::_login_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> >, s::_password_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > > >,
sl::sql_orm_factory<sl::sqlite_connection, iod::sio<s::_id_t::variable_type<int, iod::sio<s::_auto_increment_t, s::_primary_key_t> >, s::_user_id_t::variable_type<int,
iod::sio<s::_read_only_t> >, s::_title_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> >, s::_body_t::variable_typestd::__cxx11::basic_string<char,
iod::sio<> > > >, sl::hashmap_session_factory >, sl::mhd_request *, sl::mhd_response *, MHD_Connection
*>::index_api<std::tuple<sl::api_node<sl::http_route<sl::http_post, std::tuple<s::_login_t>, iod::sio<>, iod::sio<>,
iod::sio<s::_login_t::variable_type<std::__cxx11::basic_string, iod::sio<> >, s::_password_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > > >,
sl::procedure<sl::http_route<sl::http_post, std::tuple<s::_login_t>, iod::sio<>, iod::sio<>, iod::sio<s::_login_t::variable_type<std::__cxx11::basic_string,
iod::sio<> >, s::_password_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > > >, iod::sio<s::_login_t::variable_type<std::__cxx11::basic_string,
iod::sio<> >, s::_password_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > >, void, (lambda at ../silicon/api.hh:77:12)> >,
sl::api_node<sl::http_route<sl::http_get, std::tuple<s::_logout_t>, iod::sio<>, iod::sio<>, iod::sio<> >, sl::procedure<sl::http_route<sl::http_get,
std::tuple<s::_logout_t>, iod::sio<>, iod::sio<>, iod::sio<> >, iod::sio<>, void, (lambda at ./blog_api.hh:69:19)> >, sl::api_node<sl::http_route<sl::http_verb_any,
std::tuple<s::_user_t>, iod::sio<>, iod::sio<>, iod::sio<> >, std::tuple<sl::api_node<sl::http_route<sl::http_get, std::tuple<s::_user_t, s::_get_by_id_t>, iod::sio<>,
iod::sio<s::_id_t::variable_type<int, iod::sio<> > >, iod::sio<> >, sl::procedure<sl::http_route<sl::http_get, std::tuple<s::_user_t, s::_get_by_id_t>, iod::sio<>,
iod::sio<s::_id_t::variable_type<int, iod::sio<> > >, iod::sio<> >, iod::sio<s::_id_t::variable_type<int, iod::sio<> > >, iod::sio<s::_id_t::variable_type<int,
iod::sio<s::_auto_increment_t, s::_primary_key_t> >, s::_login_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> >,
s::_password_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > >, (lambda at ../silicon/api.hh:77:12)> >, sl::api_node<sl::http_route<sl::http_post,
std::tuple<s::_user_t, s::_create_t>, iod::sio<>, iod::sio<>, iod::sio<s::_login_t::variable_type<std::__cxx11::basic_string, iod::sio<> >,
s::_password_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > > >, sl::procedure<sl::http_route<sl::http_post, std::tuple<s::_user_t, s::_create_t>,
iod::sio<>, iod::sio<>, iod::sio<s::_login_t::variable_type<std::__cxx11::basic_string, iod::sio<> >,
s::_password_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > > >, iod::sio<s::_login_t::variable_type<std::__cxx11::basic_string, iod::sio<> >,
s::_password_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > >, iod::sio<s::_id_t::variable_type<int, iod::sio<> > >, (lambda at ../silicon/api.hh:77:12)>
>, sl::api_node<sl::http_route<sl::http_post, std::tuple<s::_user_t, s::_update_t>, iod::sio<>, iod::sio<>, iod::sio<s::_id_t::variable_type<int, iod::sio<> >,
s::_login_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> >, s::_password_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > > >,
sl::procedure<sl::http_route<sl::http_post, std::tuple<s::_user_t, s::_update_t>, iod::sio<>, iod::sio<>, iod::sio<s::_id_t::variable_type<int, iod::sio<> >,
s::_login_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> >, s::_password_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > > >,
iod::sio<s::_id_t::variable_type<int, iod::sio<> >, s::_login_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> >,
s::_password_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > >, void, (lambda at ../silicon/api.hh:77:12)> >, sl::api_node<sl::http_route<sl::http_post,
std::tuple<s::_user_t, s::_destroy_t>, iod::sio<>, iod::sio<>, iod::sio<s::_id_t::variable_type<int, iod::sio<> > > >, sl::procedure<sl::http_route<sl::http_post,
std::tuple<s::_user_t, s::_destroy_t>, iod::sio<>, iod::sio<>, iod::sio<s::_id_t::variable_type<int, iod::sio<> > > >, iod::sio<s::_id_t::variable_type<int, iod::sio<> >
>, void, (lambda at ../silicon/api.hh:77:12)> > > >, sl::api_node<sl::http_route<sl::http_verb_any, std::tuple<s::_post_t>, iod::sio<>, iod::sio<>, iod::sio<> >,
std::tuple<sl::api_node<sl::http_route<sl::http_get, std::tuple<s::_post_t, s::_get_by_id_t>, iod::sio<>, iod::sio<s::_id_t::variable_type<int, iod::sio<> > >, iod::sio<>
>, sl::procedure<sl::http_route<sl::http_get, std::tuple<s::_post_t, s::_get_by_id_t>, iod::sio<>, iod::sio<s::_id_t::variable_type<int, iod::sio<> > >, iod::sio<> >,
iod::sio<s::_id_t::variable_type<int, iod::sio<> > >, iod::sio<s::_id_t::variable_type<int, iod::sio<s::_auto_increment_t, s::_primary_key_t> >,
s::_user_id_t::variable_type<int, iod::sio<s::_read_only_t> >, s::_title_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> >,
s::_body_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > >, (lambda at ../silicon/api.hh:77:12)> >, sl::api_node<sl::http_route<sl::http_post,
std::tuple<s::_post_t, s::_create_t>, iod::sio<>, iod::sio<>, iod::sio<s::_title_t::variable_type<std::__cxx11::basic_string, iod::sio<> >,
s::_body_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > > >, sl::procedure<sl::http_route<sl::http_post, std::tuple<s::_post_t, s::_create_t>,
iod::sio<>, iod::sio<>, iod::sio<s::_title_t::variable_type<std::__cxx11::basic_string, iod::sio<> >, s::_body_t::variable_typestd::__cxx11::basic_string<char,
iod::sio<> > > >, iod::sio<s::_title_t::variable_type<std::__cxx11::basic_string, iod::sio<> >, s::_body_t::variable_typestd::__cxx11::basic_string<char,
iod::sio<> > >, iod::sio<s::_id_t::variable_type<int, iod::sio<> > >, (lambda at ../silicon/api.hh:77:12)> >, sl::api_node<sl::http_route<sl::http_post,
std::tuple<s::_post_t, s::_update_t>, iod::sio<>, iod::sio<>, iod::sio<s::_id_t::variable_type<int, iod::sio<> >,
s::_title_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> >, s::_body_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > > >,
sl::procedure<sl::http_route<sl::http_post, std::tuple<s::_post_t, s::_update_t>, iod::sio<>, iod::sio<>, iod::sio<s::_id_t::variable_type<int, iod::sio<> >,
s::_title_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> >, s::_body_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > > >,
iod::sio<s::_id_t::variable_type<int, iod::sio<> >, s::_title_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> >,
s::_body_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > >, void, (lambda at ../silicon/api.hh:77:12)> >, sl::api_node<sl::http_route<sl::http_post,
std::tuple<s::_post_t, s::_destroy_t>, iod::sio<>, iod::sio<>, iod::sio<s::_id_t::variable_type<int, iod::sio<> > > >, sl::procedure<sl::http_route<sl::http_post,
std::tuple<s::_post_t, s::_destroy_t>, iod::sio<>, iod::sio<>, iod::sio<s::_id_t::variable_type<int, iod::sio<> > > >, iod::sio<s::_id_t::variable_type<int, iod::sio<> >
>, void, (lambda at ../silicon/api.hh:77:12)> > > > > >' requested here
index_api(api);
^
../silicon/backends/mhd.hh:409:18: note: in instantiation of function template specialization 'sl::service<sl::mhd_json_service_utils, std::tuple<sl::mhd_session_cookie,
sl::sqlite_connection_factory, sl::sql_orm_factory<sl::sqlite_connection, iod::sio<s::_id_t::variable_type<int, iod::sio<s::_auto_increment_t, s::_primary_key_t> >,
s::_login_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> >, s::_password_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > > >,
sl::sql_orm_factory<sl::sqlite_connection, iod::sio<s::_id_t::variable_type<int, iod::sio<s::_auto_increment_t, s::_primary_key_t> >, s::_user_id_t::variable_type<int,
iod::sio<s::_read_only_t> >, s::_title_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> >, s::_body_t::variable_typestd::__cxx11::basic_string<char,
iod::sio<> > > >, sl::hashmap_session_factory >, sl::mhd_request *, sl::mhd_response *, MHD_Connection
*>::service<std::tuple<sl::api_node<sl::http_route<sl::http_post, std::tuple<s::_login_t>, iod::sio<>, iod::sio<>,
iod::sio<s::_login_t::variable_type<std::__cxx11::basic_string, iod::sio<> >, s::_password_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > > >,
sl::procedure<sl::http_route<sl::http_post, std::tuple<s::_login_t>, iod::sio<>, iod::sio<>, iod::sio<s::_login_t::variable_type<std::__cxx11::basic_string,
iod::sio<> >, s::_password_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > > >, iod::sio<s::_login_t::variable_type<std::__cxx11::basic_string,
iod::sio<> >, s::_password_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > >, void, (lambda at ../silicon/api.hh:77:12)> >,
sl::api_node<sl::http_route<sl::http_get, std::tuple<s::_logout_t>, iod::sio<>, iod::sio<>, iod::sio<> >, sl::procedure<sl::http_route<sl::http_get,
std::tuple<s::_logout_t>, iod::sio<>, iod::sio<>, iod::sio<> >, iod::sio<>, void, (lambda at ./blog_api.hh:69:19)> >, sl::api_node<sl::http_route<sl::http_verb_any,
std::tuple<s::_user_t>, iod::sio<>, iod::sio<>, iod::sio<> >, std::tuple<sl::api_node<sl::http_route<sl::http_get, std::tuple<s::_user_t, s::_get_by_id_t>, iod::sio<>,
iod::sio<s::_id_t::variable_type<int, iod::sio<> > >, iod::sio<> >, sl::procedure<sl::http_route<sl::http_get, std::tuple<s::_user_t, s::_get_by_id_t>, iod::sio<>,
iod::sio<s::_id_t::variable_type<int, iod::sio<> > >, iod::sio<> >, iod::sio<s::_id_t::variable_type<int, iod::sio<> > >, iod::sio<s::_id_t::variable_type<int,
iod::sio<s::_auto_increment_t, s::_primary_key_t> >, s::_login_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> >,
s::_password_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > >, (lambda at ../silicon/api.hh:77:12)> >, sl::api_node<sl::http_route<sl::http_post,
std::tuple<s::_user_t, s::_create_t>, iod::sio<>, iod::sio<>, iod::sio<s::_login_t::variable_type<std::__cxx11::basic_string, iod::sio<> >,
s::_password_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > > >, sl::procedure<sl::http_route<sl::http_post, std::tuple<s::_user_t, s::_create_t>,
iod::sio<>, iod::sio<>, iod::sio<s::_login_t::variable_type<std::__cxx11::basic_string, iod::sio<> >,
s::_password_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > > >, iod::sio<s::_login_t::variable_type<std::__cxx11::basic_string, iod::sio<> >,
s::_password_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > >, iod::sio<s::_id_t::variable_type<int, iod::sio<> > >, (lambda at ../silicon/api.hh:77:12)>
>, sl::api_node<sl::http_route<sl::http_post, std::tuple<s::_user_t, s::_update_t>, iod::sio<>, iod::sio<>, iod::sio<s::_id_t::variable_type<int, iod::sio<> >,
s::_login_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> >, s::_password_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > > >,
sl::procedure<sl::http_route<sl::http_post, std::tuple<s::_user_t, s::_update_t>, iod::sio<>, iod::sio<>, iod::sio<s::_id_t::variable_type<int, iod::sio<> >,
s::_login_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> >, s::_password_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > > >,
iod::sio<s::_id_t::variable_type<int, iod::sio<> >, s::_login_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> >,
s::_password_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > >, void, (lambda at ../silicon/api.hh:77:12)> >, sl::api_node<sl::http_route<sl::http_post,
std::tuple<s::_user_t, s::_destroy_t>, iod::sio<>, iod::sio<>, iod::sio<s::_id_t::variable_type<int, iod::sio<> > > >, sl::procedure<sl::http_route<sl::http_post,
std::tuple<s::_user_t, s::_destroy_t>, iod::sio<>, iod::sio<>, iod::sio<s::_id_t::variable_type<int, iod::sio<> > > >, iod::sio<s::_id_t::variable_type<int, iod::sio<> >
>, void, (lambda at ../silicon/api.hh:77:12)> > > >, sl::api_node<sl::http_route<sl::http_verb_any, std::tuple<s::_post_t>, iod::sio<>, iod::sio<>, iod::sio<> >,
std::tuple<sl::api_node<sl::http_route<sl::http_get, std::tuple<s::_post_t, s::_get_by_id_t>, iod::sio<>, iod::sio<s::_id_t::variable_type<int, iod::sio<> > >, iod::sio<>
>, sl::procedure<sl::http_route<sl::http_get, std::tuple<s::_post_t, s::_get_by_id_t>, iod::sio<>, iod::sio<s::_id_t::variable_type<int, iod::sio<> > >, iod::sio<> >,
iod::sio<s::_id_t::variable_type<int, iod::sio<> > >, iod::sio<s::_id_t::variable_type<int, iod::sio<s::_auto_increment_t, s::_primary_key_t> >,
s::_user_id_t::variable_type<int, iod::sio<s::_read_only_t> >, s::_title_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> >,
s::_body_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > >, (lambda at ../silicon/api.hh:77:12)> >, sl::api_node<sl::http_route<sl::http_post,
std::tuple<s::_post_t, s::_create_t>, iod::sio<>, iod::sio<>, iod::sio<s::_title_t::variable_type<std::__cxx11::basic_string, iod::sio<> >,
s::_body_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > > >, sl::procedure<sl::http_route<sl::http_post, std::tuple<s::_post_t, s::_create_t>,
iod::sio<>, iod::sio<>, iod::sio<s::_title_t::variable_type<std::__cxx11::basic_string, iod::sio<> >, s::_body_t::variable_typestd::__cxx11::basic_string<char,
iod::sio<> > > >, iod::sio<s::_title_t::variable_type<std::__cxx11::basic_string, iod::sio<> >, s::_body_t::variable_typestd::__cxx11::basic_string<char,
iod::sio<> > >, iod::sio<s::_id_t::variable_type<int, iod::sio<> > >, (lambda at ../silicon/api.hh:77:12)> >, sl::api_node<sl::http_route<sl::http_post,
std::tuple<s::_post_t, s::_update_t>, iod::sio<>, iod::sio<>, iod::sio<s::_id_t::variable_type<int, iod::sio<> >,
s::_title_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> >, s::_body_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > > >,
sl::procedure<sl::http_route<sl::http_post, std::tuple<s::_post_t, s::_update_t>, iod::sio<>, iod::sio<>, iod::sio<s::_id_t::variable_type<int, iod::sio<> >,
s::_title_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> >, s::_body_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > > >,
iod::sio<s::_id_t::variable_type<int, iod::sio<> >, s::_title_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> >,
s::_body_t::variable_typestd::__cxx11::basic_string<char, iod::sio<> > >, void, (lambda at ../silicon/api.hh:77:12)> >, sl::api_node<sl::http_route<sl::http_post,
std::tuple<s::_post_t, s::_destroy_t>, iod::sio<>, iod::sio<>, iod::sio<s::_id_t::variable_type<int, iod::sio<> > > >, sl::procedure<sl::http_route<sl::http_post,
std::tuple<s::_post_t, s::_destroy_t>, iod::sio<>, iod::sio<>, iod::sio<s::_id_t::variable_type<int, iod::sio<> > > >, iod::sio<s::_id_t::variable_type<int, iod::sio<> >
>, void, (lambda at ../silicon/api.hh:77:12)> > > > > >' requested here
auto s = new service_t(api, m2);
^
1 error generated.
msvobod :: tmp/silicon/examples ‹master› » clang --version 1 ↵
clang version 3.7.1 (tags/RELEASE_371/final)
Target: x86_64-unknown-linux-gnu
Thread model: posix

[matt-42]

Sorry, you need to pass the option -ftemplate-depth=1024 to clang. I'll add this to the documentation.

[tex]

Now it is better :-)

msvobod :: tmp/silicon/examples ‹master› » clang -ftemplate-depth=1024 -std=c++14 blog.cc -I ../ -I ../iod/iod/ -lmicrohttpd -o hello_world 1 ↵
/usr/bin/ld: /tmp/blog-0c479d.o: undefined reference to symbol 'nettle_sha3_512_init@@NETTLE_6'
/usr/lib/libnettle.so.6: error adding symbols: DSO missing from command line
clang-3.7: error: linker command failed with exit code 1 (use -v to see invocation)

Do you know what if libnettle and why it complains on that undefined reference?

[tex]

Oh I see... Nevermind.

[tex]

Do you have any idea from where those _ubsan comes?

msvobod :: tmp/silicon/examples ‹master› » cmake -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ 2 ↵
-- Boost version: 1.60.0
-- Found the following Boost libraries:
-- system
-- thread
-- date_time
-- program_options
-- filesystem
-- chrono
-- atomic
-- Configuring done
You have changed variables that require your cache to be deleted.
Configure will be re-run and you may have to reset some variables.
The following variables have changed:
CMAKE_CXX_COMPILER= clang++

-- The C compiler identification is GNU 5.3.0
-- The CXX compiler identification is Clang 3.7.1
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/clang++
-- Check for working CXX compiler: /usr/bin/clang++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Looking for pthread_create
-- Looking for pthread_create - not found
-- Looking for pthread_create in pthreads
-- Looking for pthread_create in pthreads - not found
-- Looking for pthread_create in pthread
-- Looking for pthread_create in pthread - found
-- Found Threads: TRUE
-- Boost version: 1.60.0
-- Found the following Boost libraries:
-- system
-- thread
-- date_time
-- program_options
-- filesystem
-- chrono
-- atomic
-- Configuring done
-- Generating done
-- Build files have been written to: /home/milan/tmp/silicon/examples
msvobod :: tmp/silicon/examples ‹master› » make
Scanning dependencies of target blog
[ 12%] Building CXX object CMakeFiles/blog.dir/blog.cc.o
[ 25%] Linking CXX executable blog
[ 25%] Built target blog
Scanning dependencies of target simple
[ 37%] Building CXX object CMakeFiles/simple.dir/simple.cc.o
[ 50%] Linking CXX executable simple
[ 50%] Built target simple
Scanning dependencies of target blog_test
[ 62%] Building CXX object CMakeFiles/blog_test.dir/blog_test.cc.o
[ 75%] Linking CXX executable blog_test
/usr/local/lib/liblwan-common.a(lwan.c.o): In function lwan_module_init': /home/milan/tmp/silicon/lwan/common/lwan.c:63: undefined reference to__ubsan_handle_type_mismatch'
/home/milan/tmp/silicon/lwan/common/lwan.c:65: undefined reference to __ubsan_handle_type_mismatch' /usr/local/lib/liblwan-common.a(lwan.c.o): In functionlwan_module_shutdown':
/home/milan/tmp/silicon/lwan/common/lwan.c:71: undefined reference to __ubsan_handle_type_mismatch' /usr/local/lib/liblwan-common.a(lwan.c.o): In functionfind_handler_symbol':
/home/milan/tmp/silicon/lwan/common/lwan.c:76: undefined reference to __ubsan_handle_nonnull_arg' /home/milan/tmp/silicon/lwan/common/lwan.c:78: undefined reference to__ubsan_handle_nonnull_arg'
/usr/local/lib/liblwan-common.a(lwan.c.o): In function lwan_module_find': /home/milan/tmp/silicon/lwan/common/lwan.c:84: undefined reference to__ubsan_handle_type_mismatch'
/home/milan/tmp/silicon/lwan/common/lwan.c:91: undefined reference to __ubsan_handle_type_mismatch' /home/milan/tmp/silicon/lwan/common/lwan.c:91: undefined reference to__ubsan_handle_type_mismatch'
/home/milan/tmp/silicon/lwan/common/lwan.c:91: undefined reference to __ubsan_handle_type_mismatch' /home/milan/tmp/silicon/lwan/common/lwan.c:91: undefined reference to__ubsan_handle_type_mismatch'
/usr/local/lib/liblwan-common.a(lwan.c.o):/home/milan/tmp/silicon/lwan/common/lwan.c:94: more undefined references to __ubsan_handle_type_mismatch' follow /usr/local/lib/liblwan-common.a(lwan.c.o): In functionadd_url_map':
/home/milan/tmp/silicon/lwan/common/lwan.c:151: undefined reference to __ubsan_handle_nonnull_arg' /home/milan/tmp/silicon/lwan/common/lwan.c:151: undefined reference to__ubsan_handle_nonnull_arg'
/home/milan/tmp/silicon/lwan/common/lwan.c:153: undefined reference to __ubsan_handle_type_mismatch' /home/milan/tmp/silicon/lwan/common/lwan.c:153: undefined reference to__ubsan_handle_nonnull_arg'

[tex]

"fixed" by switching the test to use mhd.

[tex]

And now websocketpp:

[ 87%] Building CXX object CMakeFiles/ws_broadcast_server.dir/ws_broadcast_server.cc.o
In file included from /home/milan/tmp/silicon/examples/ws_broadcast_server.cc:3:
In file included from /home/milan/tmp/silicon/examples/../silicon/backends/websocketpp.hh:13:
In file included from /home/milan/tmp/silicon/examples/../silicon/backends/websocketpp_remote_client.hh:11:
/home/milan/tmp/silicon/examples/../silicon/backends/wspp_connection.hh:16:65: error: invalid operands to binary expression ('const websocketpp::connection_hdl'
(aka 'const weak_ptr') and 'const websocketpp::connection_hdl')
bool operator<(const wspp_connection& a) const { return hdl < a.hdl; }
~~~ ^ ~~~~~
/home/milan/tmp/silicon/examples/ws_broadcast_server.cc:57:12: error: 'wspp_connection' does not refer to a value
std::set<wspp_connection> users;
^
/home/milan/tmp/silicon/examples/../silicon/backends/wspp_connection.hh:11:10: note: declared here
struct wspp_connection
^
/home/milan/tmp/silicon/examples/ws_broadcast_server.cc:57:8: error: no member named 'set' in namespace 'std'
std::set<wspp_connection> users;

/home/milan/tmp/silicon/examples/ws_broadcast_server.cc:57:29: error: use of undeclared identifier 'users'; did you mean '_user'?
  std::set<wspp_connection> users;
                            ^~~~~
                            _user
/home/milan/tmp/silicon/examples/symbols.hh:110:5: note: '_user' declared here
    iod_define_symbol(user)
    ^
/usr/local/include/iod/symbol.hh:69:27: note: expanded from macro 'iod_define_symbol'
  constexpr _##SYMBOL##_t _##SYMBOL;                                      \
                          ^
<scratch space>:388:1: note: expanded from here
_user
^
/home/milan/tmp/silicon/examples/ws_broadcast_server.cc:69:39: error: use of undeclared identifier 'users'; did you mean '_user'?
      for (const wspp_connection& c : users) rclient(c).message(p.message);
                                      ^~~~~
                                      _user
/home/milan/tmp/silicon/examples/symbols.hh:110:5: note: '_user' declared here
    iod_define_symbol(user)
    ^
/usr/local/include/iod/symbol.hh:69:27: note: expanded from macro 'iod_define_symbol'
  constexpr _##SYMBOL##_t _##SYMBOL;                                      \
                          ^
<scratch space>:388:1: note: expanded from here
_user
^
/home/milan/tmp/silicon/examples/ws_broadcast_server.cc:69:37: error: invalid range expression of type 'const s::_user_t'; no viable 'begin' function available
      for (const wspp_connection& c : users) rclient(c).message(p.message);
                                    ^
/home/milan/tmp/silicon/examples/ws_broadcast_server.cc:81:78: error: use of undeclared identifier 'users'
                  _on_open = [&] (wspp_connection& c) { lock l(users_mutex); users.insert(c); },
                                                                             ^
/home/milan/tmp/silicon/examples/ws_broadcast_server.cc:82:79: error: use of undeclared identifier 'users'
                  _on_close = [&] (wspp_connection& c) { lock l(users_mutex); users.erase(c); },
                                                                              ^
8 errors generated.
CMakeFiles/ws_broadcast_server.dir/build.make:62: návod pro cíl „CMakeFiles/ws_broadcast_server.dir/ws_broadcast_server.cc.o“ selhal
make[2]: *** [CMakeFiles/ws_broadcast_server.dir/ws_broadcast_server.cc.o] Chyba 1
CMakeFiles/Makefile2:178: návod pro cíl „CMakeFiles/ws_broadcast_server.dir/all“ selhal
make[1]: *** [CMakeFiles/ws_broadcast_server.dir/all] Chyba 2
Makefile:83: návod pro cíl „all“ selhal

[matt-42]

I'll push a fix tomorrow.

[matt-42]

Problem solved by 97bdd57

[matt-42]

I close this issue but do not hesitate to reopen it whenever you encounter any problems.

[tex]

Thanks! It compiles now.

[matt-42]

Great! Thanks for your feedback. Note that I'll probably add the https://github.com/alexhultman/uWebSockets backend. It claims to be a faster websocket library.