VS2013中的Wt（机智）入门
Getting started with Wt (Witty) in VS2013
我已经使用 http://sourceforge.net/projects/witty/files/wt/3.3.5/ and I'm trying to build the first solution from here http://andres.jaimes.net/780/how-to-create-a-first-application-using-wt-witty/ 的安装程序安装了 Wt-3.3.5-rc2-msvs2013-Windows-x86-SDK 并完成了 "In order to successfully compile any of these applications you have to let your compiler know about the additional include and lib folders and files." 的要点，但我仍然明白这种错误，知道吗，为什么？
1>------ Build started: Project: hello, Configuration: Debug Win32 ------
1> main.cpp
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\http\request(83): warning C4251: 'Wt::Http::UploadedFile::fileInfo_' : class 'boost::shared_ptr<Wt::Http::UploadedFile::Impl>' needs to have dll-interface to be used by clients of class 'Wt::Http::UploadedFile'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\http\request(414): warning C4251: 'Wt::Http::Request::cookies_' : class 'std::map<std::string,std::string,std::less<_Kty>,std::allocator<std::pair<const _Kty,_Ty>>>' needs to have dll-interface to be used by clients of class 'Wt::Http::Request'
1> with
1> [
1> _Kty=std::string
1> , _Ty=std::string
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wobject(242): warning C4275: non dll-interface class 'boost::signals2::trackable' used as base for dll-interface class 'Wt::WObject'
1> c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\boost\signals2\trackable.hpp(38) : see declaration of 'boost::signals2::trackable'
1> c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wobject(241) : see declaration of 'Wt::WObject'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wobject(516): warning C4251: 'Wt::WObject::statelessSlots_' : class 'std::vector<Wt::WStatelessSlot *,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WObject'
1> with
1> [
1> _Ty=Wt::WStatelessSlot *
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wobject(520): warning C4251: 'Wt::WObject::name_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WObject'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wobject(531): warning C4251: 'Wt::WObject::emptyObjectList_' : class 'std::vector<Wt::WObject *,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WObject'
1> with
1> [
1> _Ty=Wt::WObject *
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wobject(540): warning C4251: 'Wt::WObject::trackable_ptr_' : class 'boost::shared_ptr<T>' needs to have dll-interface to be used by clients of class 'Wt::WObject'
1> with
1> [
1> T=int
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wstring(532): warning C4251: 'Wt::WString::utf8_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WString'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wstring(546): warning C4251: 'Wt::WString::stArguments_' : class 'std::vector<Wt::WString,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WString'
1> with
1> [
1> _Ty=Wt::WString
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wanimation(173): warning C4251: 'Wt::WAnimation::effects_' : class 'Wt::WFlags<Wt::WAnimation::AnimationEffect>' needs to have dll-interface to be used by clients of class 'Wt::WAnimation'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wsignal(572): warning C4251: 'Wt::EventSignalBase::connections_' : class 'std::vector<Wt::EventSignalBase::StatelessConnection,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::EventSignalBase'
1> with
1> [
1> _Ty=Wt::EventSignalBase::StatelessConnection
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wsignal(573): warning C4251: 'Wt::EventSignalBase::flags_' : class 'std::bitset<7>' needs to have dll-interface to be used by clients of class 'Wt::EventSignalBase'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wsignal(580): warning C4251: 'Wt::EventSignalBase::dummy_' : class 'boost::signals2::signal<void (void),boost::signals2::optional_last_value<void>,int,std::less<Group>,boost::function<Signature>,boost::function<R (const boost::signals2::connection &)>,boost::signals2::mutex>' needs to have dll-interface to be used by clients of class 'Wt::EventSignalBase'
1> with
1> [
1> Group=int
1> , Signature=void (void)
1> , R=void
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wevent(89): warning C4251: 'Wt::JavaScriptEvent::modifiers' : class 'Wt::WFlags<Wt::KeyboardModifier>' needs to have dll-interface to be used by clients of class 'Wt::JavaScriptEvent'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wevent(92): warning C4251: 'Wt::JavaScriptEvent::touches' : class 'std::vector<Wt::Touch,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::JavaScriptEvent'
1> with
1> [
1> _Ty=Wt::Touch
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wevent(92): warning C4251: 'Wt::JavaScriptEvent::targetTouches' : class 'std::vector<Wt::Touch,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::JavaScriptEvent'
1> with
1> [
1> _Ty=Wt::Touch
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wevent(92): warning C4251: 'Wt::JavaScriptEvent::changedTouches' : class 'std::vector<Wt::Touch,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::JavaScriptEvent'
1> with
1> [
1> _Ty=Wt::Touch
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wevent(101): warning C4251: 'Wt::JavaScriptEvent::type' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::JavaScriptEvent'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wevent(104): warning C4251: 'Wt::JavaScriptEvent::tid' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::JavaScriptEvent'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wevent(106): warning C4251: 'Wt::JavaScriptEvent::response' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::JavaScriptEvent'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wevent(108): warning C4251: 'Wt::JavaScriptEvent::userEventArgs' : class 'std::vector<std::string,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::JavaScriptEvent'
1> with
1> [
1> _Ty=std::string
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wevent(435): warning C4251: 'Wt::WDropEvent::dropMimeType_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WDropEvent'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wexception(42): warning C4251: 'Wt::WException::what_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WException'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wstringstream(210): warning C4251: 'Wt::WStringStream::bufs_' : class 'std::vector<std::pair<char *,int>,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WStringStream'
1> with
1> [
1> _Ty=std::pair<char *,int>
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wlogger(227): warning C4251: 'Wt::WLogger::fields_' : class 'std::vector<Wt::WLogger::Field,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WLogger'
1> with
1> [
1> _Ty=Wt::WLogger::Field
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wlogger(235): warning C4251: 'Wt::WLogger::rules_' : class 'std::vector<Wt::WLogger::Rule,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WLogger'
1> with
1> [
1> _Ty=Wt::WLogger::Rule
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wjavascript(387): warning C4251: 'Wt::JSignal<Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass>::name_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::JSignal<Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass>'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wjavascript(387): warning C4251: 'Wt::JSignal<Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass>::senderId_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::JSignal<Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass>'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wwidget(1236): warning C4251: 'Wt::WWidget::flags_' : class 'std::bitset<6>' needs to have dll-interface to be used by clients of class 'Wt::WWidget'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wwidget(1238): warning C4251: 'Wt::WWidget::eventSignals_' : class 'std::list<Wt::EventSignalBase *,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WWidget'
1> with
1> [
1> _Ty=Wt::EventSignalBase *
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wwebwidget(387): warning C4251: 'Wt::WWebWidget::elementTagName_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WWebWidget'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wwebwidget(390): warning C4251: 'Wt::WWebWidget::AllChangeFlags' : class 'std::bitset<31>' needs to have dll-interface to be used by clients of class 'Wt::WWebWidget'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wwebwidget(398): warning C4251: 'Wt::WWebWidget::flags_' : class 'std::bitset<31>' needs to have dll-interface to be used by clients of class 'Wt::WWebWidget'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wwebwidget(503): warning C4251: 'Wt::WWebWidget::emptyWidgetList_' : class 'std::vector<Wt::WWidget *,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WWebWidget'
1> with
1> [
1> _Ty=Wt::WWidget *
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wlink(186): warning C4251: 'Wt::WLink::value_' : class 'boost::variant<std::string,Wt::WResource *,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_>' needs to have dll-interface to be used by clients of class 'Wt::WLink'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wcssdecorationstyle(216): warning C4251: 'Wt::WCssDecorationStyle::cursorImage_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WCssDecorationStyle'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wcssdecorationstyle(222): warning C4251: 'Wt::WCssDecorationStyle::backgroundImageLocation_' : class 'Wt::WFlags<Wt::Side>' needs to have dll-interface to be used by clients of class 'Wt::WCssDecorationStyle'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wcssdecorationstyle(224): warning C4251: 'Wt::WCssDecorationStyle::textDecoration_' : class 'Wt::WFlags<Wt::WCssDecorationStyle::TextDecoration>' needs to have dll-interface to be used by clients of class 'Wt::WCssDecorationStyle'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wcssstylesheet(78): warning C4251: 'Wt::WCssRule::selector_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WCssRule'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wcssstylesheet(286): warning C4251: 'Wt::WCssStyleSheet::media_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WCssStyleSheet'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wcssstylesheet(288): warning C4251: 'Wt::WCssStyleSheet::rules_' : class 'std::vector<Wt::WCssRule *,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WCssStyleSheet'
1> with
1> [
1> _Ty=Wt::WCssRule *
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wcssstylesheet(289): warning C4251: 'Wt::WCssStyleSheet::rulesAdded_' : class 'std::vector<Wt::WCssRule *,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WCssStyleSheet'
1> with
1> [
1> _Ty=Wt::WCssRule *
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wcssstylesheet(291): warning C4251: 'Wt::WCssStyleSheet::rulesModified_' : class 'std::set<Wt::WCssRule *,std::less<_Kty>,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WCssStyleSheet'
1> with
1> [
1> _Kty=Wt::WCssRule *
1> , _Ty=Wt::WCssRule *
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wcssstylesheet(292): warning C4251: 'Wt::WCssStyleSheet::rulesRemoved_' : class 'std::vector<std::string,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WCssStyleSheet'
1> with
1> [
1> _Ty=std::string
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wcssstylesheet(294): warning C4251: 'Wt::WCssStyleSheet::defined_' : class 'std::set<std::string,std::less<_Kty>,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WCssStyleSheet'
1> with
1> [
1> _Kty=std::string
1> , _Ty=std::string
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wlocale(233): warning C4251: 'Wt::WLocale::name_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WLocale'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wlocale(234): warning C4251: 'Wt::WLocale::decimalPoint_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WLocale'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wlocale(234): warning C4251: 'Wt::WLocale::groupSeparator_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WLocale'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wlocale(237): warning C4251: 'Wt::WLocale::time_zone_' : class 'boost::shared_ptr<tz_type>' needs to have dll-interface to be used by clients of class 'Wt::WLocale'
1> with
1> [
1> tz_type=boost::date_time::time_zone_base<boost::posix_time::ptime,char>
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wmessageresourcebundle(171): warning C4251: 'Wt::WMessageResourceBundle::messageResources_' : class 'std::vector<Wt::WMessageResources *,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WMessageResourceBundle'
1> with
1> [
1> _Ty=Wt::WMessageResources *
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2161): warning C4251: 'Wt::WApplication::requestTooLarge_' : class 'Wt::Signal<int64_t,Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2203): warning C4251: 'Wt::WApplication::weakSession_' : class 'boost::weak_ptr<Wt::WebSession>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2215): warning C4251: 'Wt::WApplication::renderedInternalPath_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2215): warning C4251: 'Wt::WApplication::newInternalPath_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2216): warning C4251: 'Wt::WApplication::internalPathChanged_' : class 'Wt::Signal<std::string,Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2216): warning C4251: 'Wt::WApplication::internalPathInvalid_' : class 'Wt::Signal<std::string,Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2224): warning C4251: 'Wt::WApplication::javaScriptClass_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2234): warning C4251: 'Wt::WApplication::htmlClass_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2234): warning C4251: 'Wt::WApplication::bodyClass_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2240): warning C4251: 'Wt::WApplication::focusId_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2244): warning C4251: 'Wt::WApplication::scriptLibraries_' : class 'std::vector<Wt::WApplication::ScriptLibrary,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1> with
1> [
1> _Ty=Wt::WApplication::ScriptLibrary
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2248): warning C4251: 'Wt::WApplication::styleSheets_' : class 'std::vector<Wt::WCssStyleSheet,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1> with
1> [
1> _Ty=Wt::WCssStyleSheet
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2249): warning C4251: 'Wt::WApplication::styleSheetsToRemove_' : class 'std::vector<Wt::WCssStyleSheet,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1> with
1> [
1> _Ty=Wt::WCssStyleSheet
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2253): warning C4251: 'Wt::WApplication::metaHeaders_' : class 'std::vector<Wt::MetaHeader,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1> with
1> [
1> _Ty=Wt::MetaHeader
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2254): warning C4251: 'Wt::WApplication::metaLinks_' : class 'std::vector<Wt::WApplication::MetaLink,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1> with
1> [
1> _Ty=Wt::WApplication::MetaLink
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2256): warning C4251: 'Wt::WApplication::exposedSignals_' : class 'std::map<std::string,Wt::EventSignalBase *,std::less<_Kty>,std::allocator<std::pair<const _Kty,_Ty>>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1> with
1> [
1> _Kty=std::string
1> , _Ty=Wt::EventSignalBase *
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2257): warning C4251: 'Wt::WApplication::exposedResources_' : class 'std::map<std::string,Wt::WResource *,std::less<_Kty>,std::allocator<std::pair<const _Kty,_Ty>>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1> with
1> [
1> _Kty=std::string
1> , _Ty=Wt::WResource *
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2258): warning C4251: 'Wt::WApplication::encodedObjects_' : class 'std::map<std::string,Wt::WObject *,std::less<_Kty>,std::allocator<std::pair<const _Kty,_Ty>>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1> with
1> [
1> _Kty=std::string
1> , _Ty=Wt::WObject *
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2260): warning C4251: 'Wt::WApplication::justRemovedSignals_' : class 'std::set<std::string,std::less<_Kty>,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1> with
1> [
1> _Kty=std::string
1> , _Ty=std::string
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2265): warning C4251: 'Wt::WApplication::afterLoadJavaScript_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2265): warning C4251: 'Wt::WApplication::beforeLoadJavaScript_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2267): warning C4251: 'Wt::WApplication::autoJavaScript_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2271): warning C4251: 'Wt::WApplication::javaScriptPreamble_' : class 'std::vector<Wt::WJavaScriptPreamble,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1> with
1> [
1> _Ty=Wt::WJavaScriptPreamble
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2276): warning C4251: 'Wt::WApplication::javaScriptLoaded_' : class 'std::set<const char *,std::less<_Kty>,std::allocator<_Kty>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1> with
1> [
1> _Kty=const char *
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2279): warning C4251: 'Wt::WApplication::showLoadingIndicator_' : class 'Wt::EventSignal<Wt::NoClass>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2279): warning C4251: 'Wt::WApplication::hideLoadingIndicator_' : class 'Wt::EventSignal<Wt::NoClass>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2282): warning C4251: 'Wt::WApplication::objectStore_' : class 'std::map<const char *,boost::any,std::less<_Kty>,std::allocator<std::pair<const _Kty,_Ty>>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1> with
1> [
1> _Kty=const char *
1> , _Ty=boost::any
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wcontainerwidget(367): warning C4251: 'Wt::WContainerWidget::flags_' : class 'std::bitset<8>' needs to have dll-interface to be used by clients of class 'Wt::WContainerWidget'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wcontainerwidget(368): warning C4251: 'Wt::WContainerWidget::contentAlignment_' : class 'Wt::WFlags<Wt::AlignmentFlag>' needs to have dll-interface to be used by clients of class 'Wt::WContainerWidget'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wtext(268): warning C4251: 'Wt::WText::text_' : struct 'Wt::WText::RichText' needs to have dll-interface to be used by clients of class 'Wt::WText'
1> c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wtext(256) : see declaration of 'Wt::WText::RichText'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wtext(280): warning C4251: 'Wt::WText::flags_' : class 'std::bitset<9>' needs to have dll-interface to be used by clients of class 'Wt::WText'
1>c:\program files (x86)\microsoft visual studio 12.0\vc\include\xmemory(348): error C4996: 'std::_Uninitialized_copy0': Function call with parameters that may be unsafe - this call relies on the caller to check that the passed values are correct. To disable this warning, use -D_SCL_SECURE_NO_WARNINGS. See documentation on how to use Visual C++ 'Checked Iterators'
1> c:\program files (x86)\microsoft visual studio 12.0\vc\include\xmemory(333) : see declaration of 'std::_Uninitialized_copy0'
1> c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\boost\signals2\detail\auto_buffer.hpp(191) : see reference to function template instantiation '_FwdIt std::uninitialized_copy<I,boost::shared_ptr<void>*>(_InIt,_InIt,_FwdIt)' being compiled
1> with
1> [
1> _FwdIt=boost::shared_ptr<void> *
1> , I=boost::shared_ptr<void> *
1> , _InIt=boost::shared_ptr<void> *
1> ]
1> c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\boost\signals2\detail\auto_buffer.hpp(178) : see reference to function template instantiation 'void boost::signals2::detail::auto_buffer<boost::shared_ptr<void>,boost::signals2::detail::store_n_objects<10>,boost::signals2::detail::default_grow_policy,std::allocator<T>>::copy_rai<I,false>(I,I,boost::shared_ptr<void> *,const boost::integral_constant<bool,false> &)' being compiled
1> with
1> [
1> T=boost::shared_ptr<void>
1> , I=boost::shared_ptr<void> *
1> ]
背景
你必须区分错误和警告。目前我只在你的日志中看到一个错误。
所以，因为只要有一点错误就不能编译，所以要看一下。你也有很多警告，但作为所有警告，它们不会阻止编译。但作为任何警告，您应该注意它们。
关于警告
我也收到了这些警告，但由于它们似乎是由 Wt、windows 共享链接方式对 DLL API 的非 100% 兼容使用生成的。所以恕我直言，可以忽略它们，不用太担心。
关于一个错误
您遇到的一个错误基本上是一个警告，因为 Microsoft 喜欢假设您是转储开发人员并抱怨在 C++ 中使用函数，可能不安全（称为 SDL）。但是由于整个 C++ 语言中的几乎所有内容都是“不安全的”，因此 C++ 严重依赖于您成为一名合理的开发人员。 （人们可以在这里提出更多意见 :-)）。
这就是为什么我认为您可以忽略此警告的原因，也因为它是 Wts“故障”。
解决方案
你必须选择处理它
- 通过在项目设置中定义预处理器宏
_SCL_SECURE_NO_WARNINGS，将一种类型的“错误”降级为警告。
- Disable all SDL checks, so you won't be bothered by errors and warnings, which are most the time, not indicating wrong language usage.（我推荐这个，除非你喜欢 Visual Basic 并且认为 windows 是最好的 OS，但我也建议不要使用 C++ :-)）
我已经使用 http://sourceforge.net/projects/witty/files/wt/3.3.5/ and I'm trying to build the first solution from here http://andres.jaimes.net/780/how-to-create-a-first-application-using-wt-witty/ 的安装程序安装了 Wt-3.3.5-rc2-msvs2013-Windows-x86-SDK 并完成了 "In order to successfully compile any of these applications you have to let your compiler know about the additional include and lib folders and files." 的要点，但我仍然明白这种错误，知道吗，为什么？
1>------ Build started: Project: hello, Configuration: Debug Win32 ------
1> main.cpp
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\http\request(83): warning C4251: 'Wt::Http::UploadedFile::fileInfo_' : class 'boost::shared_ptr<Wt::Http::UploadedFile::Impl>' needs to have dll-interface to be used by clients of class 'Wt::Http::UploadedFile'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\http\request(414): warning C4251: 'Wt::Http::Request::cookies_' : class 'std::map<std::string,std::string,std::less<_Kty>,std::allocator<std::pair<const _Kty,_Ty>>>' needs to have dll-interface to be used by clients of class 'Wt::Http::Request'
1> with
1> [
1> _Kty=std::string
1> , _Ty=std::string
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wobject(242): warning C4275: non dll-interface class 'boost::signals2::trackable' used as base for dll-interface class 'Wt::WObject'
1> c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\boost\signals2\trackable.hpp(38) : see declaration of 'boost::signals2::trackable'
1> c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wobject(241) : see declaration of 'Wt::WObject'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wobject(516): warning C4251: 'Wt::WObject::statelessSlots_' : class 'std::vector<Wt::WStatelessSlot *,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WObject'
1> with
1> [
1> _Ty=Wt::WStatelessSlot *
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wobject(520): warning C4251: 'Wt::WObject::name_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WObject'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wobject(531): warning C4251: 'Wt::WObject::emptyObjectList_' : class 'std::vector<Wt::WObject *,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WObject'
1> with
1> [
1> _Ty=Wt::WObject *
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wobject(540): warning C4251: 'Wt::WObject::trackable_ptr_' : class 'boost::shared_ptr<T>' needs to have dll-interface to be used by clients of class 'Wt::WObject'
1> with
1> [
1> T=int
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wstring(532): warning C4251: 'Wt::WString::utf8_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WString'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wstring(546): warning C4251: 'Wt::WString::stArguments_' : class 'std::vector<Wt::WString,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WString'
1> with
1> [
1> _Ty=Wt::WString
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wanimation(173): warning C4251: 'Wt::WAnimation::effects_' : class 'Wt::WFlags<Wt::WAnimation::AnimationEffect>' needs to have dll-interface to be used by clients of class 'Wt::WAnimation'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wsignal(572): warning C4251: 'Wt::EventSignalBase::connections_' : class 'std::vector<Wt::EventSignalBase::StatelessConnection,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::EventSignalBase'
1> with
1> [
1> _Ty=Wt::EventSignalBase::StatelessConnection
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wsignal(573): warning C4251: 'Wt::EventSignalBase::flags_' : class 'std::bitset<7>' needs to have dll-interface to be used by clients of class 'Wt::EventSignalBase'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wsignal(580): warning C4251: 'Wt::EventSignalBase::dummy_' : class 'boost::signals2::signal<void (void),boost::signals2::optional_last_value<void>,int,std::less<Group>,boost::function<Signature>,boost::function<R (const boost::signals2::connection &)>,boost::signals2::mutex>' needs to have dll-interface to be used by clients of class 'Wt::EventSignalBase'
1> with
1> [
1> Group=int
1> , Signature=void (void)
1> , R=void
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wevent(89): warning C4251: 'Wt::JavaScriptEvent::modifiers' : class 'Wt::WFlags<Wt::KeyboardModifier>' needs to have dll-interface to be used by clients of class 'Wt::JavaScriptEvent'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wevent(92): warning C4251: 'Wt::JavaScriptEvent::touches' : class 'std::vector<Wt::Touch,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::JavaScriptEvent'
1> with
1> [
1> _Ty=Wt::Touch
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wevent(92): warning C4251: 'Wt::JavaScriptEvent::targetTouches' : class 'std::vector<Wt::Touch,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::JavaScriptEvent'
1> with
1> [
1> _Ty=Wt::Touch
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wevent(92): warning C4251: 'Wt::JavaScriptEvent::changedTouches' : class 'std::vector<Wt::Touch,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::JavaScriptEvent'
1> with
1> [
1> _Ty=Wt::Touch
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wevent(101): warning C4251: 'Wt::JavaScriptEvent::type' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::JavaScriptEvent'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wevent(104): warning C4251: 'Wt::JavaScriptEvent::tid' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::JavaScriptEvent'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wevent(106): warning C4251: 'Wt::JavaScriptEvent::response' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::JavaScriptEvent'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wevent(108): warning C4251: 'Wt::JavaScriptEvent::userEventArgs' : class 'std::vector<std::string,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::JavaScriptEvent'
1> with
1> [
1> _Ty=std::string
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wevent(435): warning C4251: 'Wt::WDropEvent::dropMimeType_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WDropEvent'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wexception(42): warning C4251: 'Wt::WException::what_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WException'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wstringstream(210): warning C4251: 'Wt::WStringStream::bufs_' : class 'std::vector<std::pair<char *,int>,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WStringStream'
1> with
1> [
1> _Ty=std::pair<char *,int>
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wlogger(227): warning C4251: 'Wt::WLogger::fields_' : class 'std::vector<Wt::WLogger::Field,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WLogger'
1> with
1> [
1> _Ty=Wt::WLogger::Field
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wlogger(235): warning C4251: 'Wt::WLogger::rules_' : class 'std::vector<Wt::WLogger::Rule,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WLogger'
1> with
1> [
1> _Ty=Wt::WLogger::Rule
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wjavascript(387): warning C4251: 'Wt::JSignal<Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass>::name_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::JSignal<Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass>'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wjavascript(387): warning C4251: 'Wt::JSignal<Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass>::senderId_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::JSignal<Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass>'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wwidget(1236): warning C4251: 'Wt::WWidget::flags_' : class 'std::bitset<6>' needs to have dll-interface to be used by clients of class 'Wt::WWidget'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wwidget(1238): warning C4251: 'Wt::WWidget::eventSignals_' : class 'std::list<Wt::EventSignalBase *,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WWidget'
1> with
1> [
1> _Ty=Wt::EventSignalBase *
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wwebwidget(387): warning C4251: 'Wt::WWebWidget::elementTagName_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WWebWidget'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wwebwidget(390): warning C4251: 'Wt::WWebWidget::AllChangeFlags' : class 'std::bitset<31>' needs to have dll-interface to be used by clients of class 'Wt::WWebWidget'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wwebwidget(398): warning C4251: 'Wt::WWebWidget::flags_' : class 'std::bitset<31>' needs to have dll-interface to be used by clients of class 'Wt::WWebWidget'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wwebwidget(503): warning C4251: 'Wt::WWebWidget::emptyWidgetList_' : class 'std::vector<Wt::WWidget *,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WWebWidget'
1> with
1> [
1> _Ty=Wt::WWidget *
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wlink(186): warning C4251: 'Wt::WLink::value_' : class 'boost::variant<std::string,Wt::WResource *,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_,boost::detail::variant::void_>' needs to have dll-interface to be used by clients of class 'Wt::WLink'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wcssdecorationstyle(216): warning C4251: 'Wt::WCssDecorationStyle::cursorImage_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WCssDecorationStyle'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wcssdecorationstyle(222): warning C4251: 'Wt::WCssDecorationStyle::backgroundImageLocation_' : class 'Wt::WFlags<Wt::Side>' needs to have dll-interface to be used by clients of class 'Wt::WCssDecorationStyle'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wcssdecorationstyle(224): warning C4251: 'Wt::WCssDecorationStyle::textDecoration_' : class 'Wt::WFlags<Wt::WCssDecorationStyle::TextDecoration>' needs to have dll-interface to be used by clients of class 'Wt::WCssDecorationStyle'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wcssstylesheet(78): warning C4251: 'Wt::WCssRule::selector_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WCssRule'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wcssstylesheet(286): warning C4251: 'Wt::WCssStyleSheet::media_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WCssStyleSheet'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wcssstylesheet(288): warning C4251: 'Wt::WCssStyleSheet::rules_' : class 'std::vector<Wt::WCssRule *,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WCssStyleSheet'
1> with
1> [
1> _Ty=Wt::WCssRule *
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wcssstylesheet(289): warning C4251: 'Wt::WCssStyleSheet::rulesAdded_' : class 'std::vector<Wt::WCssRule *,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WCssStyleSheet'
1> with
1> [
1> _Ty=Wt::WCssRule *
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wcssstylesheet(291): warning C4251: 'Wt::WCssStyleSheet::rulesModified_' : class 'std::set<Wt::WCssRule *,std::less<_Kty>,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WCssStyleSheet'
1> with
1> [
1> _Kty=Wt::WCssRule *
1> , _Ty=Wt::WCssRule *
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wcssstylesheet(292): warning C4251: 'Wt::WCssStyleSheet::rulesRemoved_' : class 'std::vector<std::string,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WCssStyleSheet'
1> with
1> [
1> _Ty=std::string
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wcssstylesheet(294): warning C4251: 'Wt::WCssStyleSheet::defined_' : class 'std::set<std::string,std::less<_Kty>,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WCssStyleSheet'
1> with
1> [
1> _Kty=std::string
1> , _Ty=std::string
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wlocale(233): warning C4251: 'Wt::WLocale::name_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WLocale'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wlocale(234): warning C4251: 'Wt::WLocale::decimalPoint_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WLocale'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wlocale(234): warning C4251: 'Wt::WLocale::groupSeparator_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WLocale'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wlocale(237): warning C4251: 'Wt::WLocale::time_zone_' : class 'boost::shared_ptr<tz_type>' needs to have dll-interface to be used by clients of class 'Wt::WLocale'
1> with
1> [
1> tz_type=boost::date_time::time_zone_base<boost::posix_time::ptime,char>
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wmessageresourcebundle(171): warning C4251: 'Wt::WMessageResourceBundle::messageResources_' : class 'std::vector<Wt::WMessageResources *,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WMessageResourceBundle'
1> with
1> [
1> _Ty=Wt::WMessageResources *
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2161): warning C4251: 'Wt::WApplication::requestTooLarge_' : class 'Wt::Signal<int64_t,Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2203): warning C4251: 'Wt::WApplication::weakSession_' : class 'boost::weak_ptr<Wt::WebSession>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2215): warning C4251: 'Wt::WApplication::renderedInternalPath_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2215): warning C4251: 'Wt::WApplication::newInternalPath_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2216): warning C4251: 'Wt::WApplication::internalPathChanged_' : class 'Wt::Signal<std::string,Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2216): warning C4251: 'Wt::WApplication::internalPathInvalid_' : class 'Wt::Signal<std::string,Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass,Wt::NoClass>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2224): warning C4251: 'Wt::WApplication::javaScriptClass_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2234): warning C4251: 'Wt::WApplication::htmlClass_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2234): warning C4251: 'Wt::WApplication::bodyClass_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2240): warning C4251: 'Wt::WApplication::focusId_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2244): warning C4251: 'Wt::WApplication::scriptLibraries_' : class 'std::vector<Wt::WApplication::ScriptLibrary,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1> with
1> [
1> _Ty=Wt::WApplication::ScriptLibrary
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2248): warning C4251: 'Wt::WApplication::styleSheets_' : class 'std::vector<Wt::WCssStyleSheet,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1> with
1> [
1> _Ty=Wt::WCssStyleSheet
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2249): warning C4251: 'Wt::WApplication::styleSheetsToRemove_' : class 'std::vector<Wt::WCssStyleSheet,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1> with
1> [
1> _Ty=Wt::WCssStyleSheet
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2253): warning C4251: 'Wt::WApplication::metaHeaders_' : class 'std::vector<Wt::MetaHeader,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1> with
1> [
1> _Ty=Wt::MetaHeader
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2254): warning C4251: 'Wt::WApplication::metaLinks_' : class 'std::vector<Wt::WApplication::MetaLink,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1> with
1> [
1> _Ty=Wt::WApplication::MetaLink
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2256): warning C4251: 'Wt::WApplication::exposedSignals_' : class 'std::map<std::string,Wt::EventSignalBase *,std::less<_Kty>,std::allocator<std::pair<const _Kty,_Ty>>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1> with
1> [
1> _Kty=std::string
1> , _Ty=Wt::EventSignalBase *
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2257): warning C4251: 'Wt::WApplication::exposedResources_' : class 'std::map<std::string,Wt::WResource *,std::less<_Kty>,std::allocator<std::pair<const _Kty,_Ty>>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1> with
1> [
1> _Kty=std::string
1> , _Ty=Wt::WResource *
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2258): warning C4251: 'Wt::WApplication::encodedObjects_' : class 'std::map<std::string,Wt::WObject *,std::less<_Kty>,std::allocator<std::pair<const _Kty,_Ty>>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1> with
1> [
1> _Kty=std::string
1> , _Ty=Wt::WObject *
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2260): warning C4251: 'Wt::WApplication::justRemovedSignals_' : class 'std::set<std::string,std::less<_Kty>,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1> with
1> [
1> _Kty=std::string
1> , _Ty=std::string
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2265): warning C4251: 'Wt::WApplication::afterLoadJavaScript_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2265): warning C4251: 'Wt::WApplication::beforeLoadJavaScript_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2267): warning C4251: 'Wt::WApplication::autoJavaScript_' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2271): warning C4251: 'Wt::WApplication::javaScriptPreamble_' : class 'std::vector<Wt::WJavaScriptPreamble,std::allocator<_Ty>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1> with
1> [
1> _Ty=Wt::WJavaScriptPreamble
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2276): warning C4251: 'Wt::WApplication::javaScriptLoaded_' : class 'std::set<const char *,std::less<_Kty>,std::allocator<_Kty>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1> with
1> [
1> _Kty=const char *
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2279): warning C4251: 'Wt::WApplication::showLoadingIndicator_' : class 'Wt::EventSignal<Wt::NoClass>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2279): warning C4251: 'Wt::WApplication::hideLoadingIndicator_' : class 'Wt::EventSignal<Wt::NoClass>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wapplication(2282): warning C4251: 'Wt::WApplication::objectStore_' : class 'std::map<const char *,boost::any,std::less<_Kty>,std::allocator<std::pair<const _Kty,_Ty>>>' needs to have dll-interface to be used by clients of class 'Wt::WApplication'
1> with
1> [
1> _Kty=const char *
1> , _Ty=boost::any
1> ]
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wcontainerwidget(367): warning C4251: 'Wt::WContainerWidget::flags_' : class 'std::bitset<8>' needs to have dll-interface to be used by clients of class 'Wt::WContainerWidget'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wcontainerwidget(368): warning C4251: 'Wt::WContainerWidget::contentAlignment_' : class 'Wt::WFlags<Wt::AlignmentFlag>' needs to have dll-interface to be used by clients of class 'Wt::WContainerWidget'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wtext(268): warning C4251: 'Wt::WText::text_' : struct 'Wt::WText::RichText' needs to have dll-interface to be used by clients of class 'Wt::WText'
1> c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wtext(256) : see declaration of 'Wt::WText::RichText'
1>c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\wt\wtext(280): warning C4251: 'Wt::WText::flags_' : class 'std::bitset<9>' needs to have dll-interface to be used by clients of class 'Wt::WText'
1>c:\program files (x86)\microsoft visual studio 12.0\vc\include\xmemory(348): error C4996: 'std::_Uninitialized_copy0': Function call with parameters that may be unsafe - this call relies on the caller to check that the passed values are correct. To disable this warning, use -D_SCL_SECURE_NO_WARNINGS. See documentation on how to use Visual C++ 'Checked Iterators'
1> c:\program files (x86)\microsoft visual studio 12.0\vc\include\xmemory(333) : see declaration of 'std::_Uninitialized_copy0'
1> c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\boost\signals2\detail\auto_buffer.hpp(191) : see reference to function template instantiation '_FwdIt std::uninitialized_copy<I,boost::shared_ptr<void>*>(_InIt,_InIt,_FwdIt)' being compiled
1> with
1> [
1> _FwdIt=boost::shared_ptr<void> *
1> , I=boost::shared_ptr<void> *
1> , _InIt=boost::shared_ptr<void> *
1> ]
1> c:\program files (x86)\wt 3.3.5 msvs2013 x86\include\boost\signals2\detail\auto_buffer.hpp(178) : see reference to function template instantiation 'void boost::signals2::detail::auto_buffer<boost::shared_ptr<void>,boost::signals2::detail::store_n_objects<10>,boost::signals2::detail::default_grow_policy,std::allocator<T>>::copy_rai<I,false>(I,I,boost::shared_ptr<void> *,const boost::integral_constant<bool,false> &)' being compiled
1> with
1> [
1> T=boost::shared_ptr<void>
1> , I=boost::shared_ptr<void> *
1> ]
背景
你必须区分错误和警告。目前我只在你的日志中看到一个错误。
所以，因为只要有一点错误就不能编译，所以要看一下。你也有很多警告，但作为所有警告，它们不会阻止编译。但作为任何警告，您应该注意它们。
关于警告
我也收到了这些警告，但由于它们似乎是由 Wt、windows 共享链接方式对 DLL API 的非 100% 兼容使用生成的。所以恕我直言，可以忽略它们，不用太担心。
关于一个错误
您遇到的一个错误基本上是一个警告，因为 Microsoft 喜欢假设您是转储开发人员并抱怨在 C++ 中使用函数，可能不安全（称为 SDL）。但是由于整个 C++ 语言中的几乎所有内容都是“不安全的”，因此 C++ 严重依赖于您成为一名合理的开发人员。 （人们可以在这里提出更多意见 :-)）。 这就是为什么我认为您可以忽略此警告的原因，也因为它是 Wts“故障”。
解决方案
你必须选择处理它
- 通过在项目设置中定义预处理器宏
_SCL_SECURE_NO_WARNINGS，将一种类型的“错误”降级为警告。 - Disable all SDL checks, so you won't be bothered by errors and warnings, which are most the time, not indicating wrong language usage.（我推荐这个，除非你喜欢 Visual Basic 并且认为 windows 是最好的 OS，但我也建议不要使用 C++ :-)）