Gesendet: Mittwoch, 01. Februar 2017 um 17:04 Uhr Von: "Peter Dimov" <lists@pdimov.com> An: boost@lists.boost.org Betreff: Re: [boost] [factory][bind] C2664 with MSVC 2015 & 1.63
Jens Weller wrote:
Hello Boost,
I'm having this Problem: http://lists.boost.org/boost-users/2015/04/84176.php
That message already describes pretty much what I see, except that I use 1.63 and the latest 2015 VC++.
Can you please give me a short but complete program that fails with the same or a similar error?
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Hi Peter, yes, I managed to that by now: #include <boost/function.hpp> #include <boost/functional/factory.hpp> #include <boost/bind.hpp> struct Widget {}; struct Panel: Widget{Panel(Widget* q){}}; using make_interface = boost::function<Widget*(Widget*)>; void registerType(const make_interface &make) { //factory.register_factory(type_id,make); } int main(int argc, char *argv[]) { auto f = boost::factory<Panel*>(); registerType( boost::bind(f,_1));//< this line is the cause, factory it self compiles } Error: boost\bind\bind.hpp:249: error: C2664: 'Panel *boost::factory<Panel *,void,boost::factory_alloc_for_pointee_and_deleter>::operator ()(void) const': cannot convert argument 1 from 'Widget *' to 'Widget *&' thanks, Jens Weller Adding the full error message from compiler output here: D:\cpp\libraries\boost_1_63_0\boost/bind/bind.hpp(249): error C2664: 'Panel *boost::factory<Panel *,void,boost::factory_alloc_for_pointee_and_deleter>::operator ()(void) const': cannot convert argument 1 from 'Widget *' to 'Widget *&' D:\cpp\libraries\boost_1_63_0\boost/bind/bind.hpp(1306): note: see reference to function template instantiation 'R *boost::_bi::list1<boost::arg<1>>::operator ()<Panel*,F,boost::_bi::rrlist1<A1>>(boost::_bi::type<Panel *>,F &,A &,long)' being compiled with [ R=Panel *, F=boost::factory<Panel *,void,boost::factory_alloc_for_pointee_and_deleter>, A1=Widget *, A=boost::_bi::rrlist1<Widget *> ] D:\cpp\libraries\boost_1_63_0\boost/bind/bind.hpp(1306): note: see reference to function template instantiation 'R *boost::_bi::list1<boost::arg<1>>::operator ()<Panel*,F,boost::_bi::rrlist1<A1>>(boost::_bi::type<Panel *>,F &,A &,long)' being compiled with [ R=Panel *, F=boost::factory<Panel *,void,boost::factory_alloc_for_pointee_and_deleter>, A1=Widget *, A=boost::_bi::rrlist1<Widget *> ] D:\cpp\libraries\boost_1_63_0\boost/function/function_template.hpp(138): note: see reference to function template instantiation 'Panel *boost::_bi::bind_t<boost::_bi::unspecified,boost::factory<Panel *,void,boost::factory_alloc_for_pointee_and_deleter>,boost::_bi::list1<boost::arg<1>>>::operator ()<T>(A1 &&)' being compiled with [ T=Widget *, A1=Widget * ] D:\cpp\libraries\boost_1_63_0\boost/function/function_template.hpp(138): note: see reference to function template instantiation 'Panel *boost::_bi::bind_t<boost::_bi::unspecified,boost::factory<Panel *,void,boost::factory_alloc_for_pointee_and_deleter>,boost::_bi::list1<boost::arg<1>>>::operator ()<T>(A1 &&)' being compiled with [ T=Widget *, A1=Widget * ] D:\cpp\libraries\boost_1_63_0\boost/function/function_template.hpp(132): note: while compiling class template member function 'Widget *boost::detail::function::function_obj_invoker1<FunctionObj,R,T0>::invoke(boost::detail::function::function_buffer &,T0)' with [ FunctionObj=boost::_bi::bind_t<boost::_bi::unspecified,boost::factory<Panel *,void,boost::factory_alloc_for_pointee_and_deleter>,boost::_bi::list1<boost::arg<1>>>, R=Widget *, T0=Widget * ] D:\cpp\libraries\boost_1_63_0\boost/function/function_template.hpp(936): note: see reference to function template instantiation 'Widget *boost::detail::function::function_obj_invoker1<FunctionObj,R,T0>::invoke(boost::detail::function::function_buffer &,T0)' being compiled with [ FunctionObj=boost::_bi::bind_t<boost::_bi::unspecified,boost::factory<Panel *,void,boost::factory_alloc_for_pointee_and_deleter>,boost::_bi::list1<boost::arg<1>>>, R=Widget *, T0=Widget * ] D:\cpp\libraries\boost_1_63_0\boost/function/function_template.hpp(936): note: see reference to class template instantiation 'boost::detail::function::function_obj_invoker1<FunctionObj,R,T0>' being compiled with [ FunctionObj=boost::_bi::bind_t<boost::_bi::unspecified,boost::factory<Panel *,void,boost::factory_alloc_for_pointee_and_deleter>,boost::_bi::list1<boost::arg<1>>>, R=Widget *, T0=Widget * ] D:\cpp\libraries\boost_1_63_0\boost/function/function_template.hpp(727): note: see reference to function template instantiation 'void boost::function1<R,T0>::assign_to<Functor>(Functor)' being compiled with [ R=Widget *, T0=Widget *, Functor=boost::_bi::bind_t<boost::_bi::unspecified,boost::factory<Panel *,void,boost::factory_alloc_for_pointee_and_deleter>,boost::_bi::list1<boost::arg<1>>> ] D:\cpp\libraries\boost_1_63_0\boost/function/function_template.hpp(727): note: see reference to function template instantiation 'void boost::function1<R,T0>::assign_to<Functor>(Functor)' being compiled with [ R=Widget *, T0=Widget *, Functor=boost::_bi::bind_t<boost::_bi::unspecified,boost::factory<Panel *,void,boost::factory_alloc_for_pointee_and_deleter>,boost::_bi::list1<boost::arg<1>>> ] D:\cpp\libraries\boost_1_63_0\boost/function/function_template.hpp(1073): note: see reference to function template instantiation 'boost::function1<R,T0>::function1<Functor>(Functor,int)' being compiled with [ R=Widget *, T0=Widget *, Functor=boost::_bi::bind_t<boost::_bi::unspecified,boost::factory<Panel *,void,boost::factory_alloc_for_pointee_and_deleter>,boost::_bi::list1<boost::arg<1>>> ] D:\cpp\libraries\boost_1_63_0\boost/function/function_template.hpp(1072): note: see reference to function template instantiation 'boost::function1<R,T0>::function1<Functor>(Functor,int)' being compiled with [ R=Widget *, T0=Widget *, Functor=boost::_bi::bind_t<boost::_bi::unspecified,boost::factory<Panel *,void,boost::factory_alloc_for_pointee_and_deleter>,boost::_bi::list1<boost::arg<1>>> ] ..\msvctestbed\main.cpp(19): note: see reference to function template instantiation 'boost::function<Widget *(Widget *)>::function<boost::_bi::bind_t<boost::_bi::unspecified,boost::factory<Panel *,void,boost::factory_alloc_for_pointee_and_deleter>,boost::_bi::list1<boost::arg<1>>>>(Functor,int)' being compiled with [ Functor=boost::_bi::bind_t<boost::_bi::unspecified,boost::factory<Panel *,void,boost::factory_alloc_for_pointee_and_deleter>,boost::_bi::list1<boost::arg<1>>> ] ..\msvctestbed\main.cpp(19): note: see reference to function template instantiation 'boost::function<Widget *(Widget *)>::function<boost::_bi::bind_t<boost::_bi::unspecified,boost::factory<Panel *,void,boost::factory_alloc_for_pointee_and_deleter>,boost::_bi::list1<boost::arg<1>>>>(Functor,int)' being compiled with [ Functor=boost::_bi::bind_t<boost::_bi::unspecified,boost::factory<Panel *,void,boost::factory_alloc_for_pointee_and_deleter>,boost::_bi::list1<boost::arg<1>>> ]