'；boost:：detail:：variant:：Visition#u impl'；：这两个重载都无法转换所有参数类型

我无法使用Boost libraries 1.61.0和Visual Studio 2015 Update 3构建两个项目

多年来，这些项目使用VisualStudio和Boost版本的各种组合构建得很好，除了更新VisualStudio和Boost库之外，我在代码中没有做任何更改

我在这两个项目中遇到的错误是：

'boost::detail::variant::visitation_impl': none of the 2 overloads could convert all the argument types

在这两个项目中，我没有直接从代码中使用boost:：variant。在一种情况下，看起来boost:：variant是从boost:：signals2使用的（我也不直接从代码中使用），而在另一种情况下，看起来boost:：variant是从Cpp Netlib 0.11.2使用的

以下是这两个项目输出日志的相关部分：

---

1>d:\libraries\boost\u 1\u 61\u 0\boost\variant\detail\visitation\u impl.hpp（267）：错误C2665:“boost:：detail:：variant:：visitation\u impl”：两个重载都不能转换所有参数类型
1> d:\libraries\boost\u 1\u 61\u 0\boost\variant\detail\visitation\u impl.hpp（201）：注意：可以是“void boost:：detail:：variant:：visitation\u impl（const int，const int，Visitor&，VoidPtrCV，boost:：mpl:：false，nobackflag，Which*，step0*）”
1> 与
1>          [
1> Visitor=boost:：detail:：variant:：destroyer，
1> void ptrcv=void*，
1> NoBackupFlag=boost:：variant:：具有\u回退\u类型，
1> Which=下一个，
1> 步骤0=下一步
1>          ]
1> d:\libraries\boost\u 1\u 61\u 0\boost\variant\detail\visitation\u impl.hpp（183）：注意：或“void boost:：detail:：variant:：visitation\u impl（int，int，Visitor&，VPCV，boost:：mpl:：true，NBF，W*，S*）”
1> 与
1>          [
1> Visitor=boost:：detail:：variant:：destroyer，
1> void ptrcv=void*，
1> NoBackupFlag=boost:：variant:：具有\u回退\u类型，
1> VPCV=无效*，
1> NBF=boost:：variant:：具有\u回退\u类型，
1> W=下一个，
1> S=下一步
1>          ]
1> d:\libraries\boost\u 1\u 61\u 0\boost\variant\detail\visitation\u impl.hpp（267）：注意：在尝试匹配参数列表时（const int，const int，boost:：detail:：variant:：destropher，void*，是否应用\u visitor\u展开，boost:：variant:：有\u fallback\u type\u，next\u which*，next\u step*）”
1> d:\libraries\boost\u 1\u 61\u 0\boost\variant\variant.hpp（2326）：注意：请参阅正在编译的函数模板实例化“void boost:：detail:：variant:：visitation\u impl（const int，const int，Visitor&，VoidPtrCV，boost:：mpl:：false，NoBackupFlag，Which*，step0*）”
1> 与
1>          [
1> Visitor=boost:：detail:：variant:：destroyer，
1> void ptrcv=void*，
1> NoBackupFlag=boost:：variant:：具有\u回退\u类型，
1> Which=first_Which，
1> 步骤0=第一步
1>          ]
1> d:\libraries\boost\u 1\u 61\u 0\boost\variant\variant.hpp（2337）：注意：请参阅正在编译的函数模板实例化“void boost:：variant:：internal\u apply\u visitor\u impl（int，int，visitor&，VoidPtrCV）”的参考
1> 与
1>          [
1> Visitor=boost:：detail:：variant:：destroyer，
1> VoidPtrCV=void*
1>          ]
1> d:\libraries\boost\u 1\u 61\u 0\boost\variant\variant.hpp（2335）：注意：请参阅正在编译的函数模板实例化“void boost:：variant:：internal\u apply\u visitor\u impl（int，int，visitor&，VoidPtrCV）”的参考
1> 与
1>          [
1> Visitor=boost:：detail:：variant:：destroyer，
1> VoidPtrCV=void*
1>          ]
1> d:\libraries\boost\u 1\u 61\u 0\boost\variant\variant.hpp（1345）：注意：请参阅正在编译的函数模板实例化“void boost:：variant:：internal\u apply\u visitor（visitor&）”的参考
1> 与
1>          [
1> Visitor=boost:：detail:：variant:：destroyer
1>          ]
1> d:\libraries\boost\u 1\u 61\u 0\boost\variant\variant.hpp（1345）：注意：请参阅正在编译的函数模板实例化“void boost:：variant:：internal\u apply\u visitor（visitor&）”的参考
1> 与
1>          [
1> Visitor=boost:：detail:：variant:：destroyer
1>          ]
1> d:\libraries\boost\u 1\u 61\u 0\boost\variant\variant.hpp（1343）：注意：在编译类模板成员函数“void boost:：variant:：destroy\u content（void）noexcept”时
1> d:\libraries\boost\u 1\u 61\u 0\boost\variant\variant.hpp（1352）：注意：请参阅正在编译的函数模板实例化“void boost:：variant:：destroy\u content（void）noexcept”
1> d:\libraries\boost\u 1\u 61\u 0\boost\signals2\slot\u base.hpp（47）：注意：请参阅正在编译的类模板实例化“boost:：variant”

---

1>d:\libraries\boost\u 1\u 61\u 0\boost\variant\detail\visitation\u impl.hpp（267）：错误C2665:“boost:：detail:：variant:：visitation\u impl”：两个重载都不能转换所有参数类型
1> d:\libraries\boost\u 1\u 61\u 0\boost\variant\detail\visitation\u impl.hpp（201）：注意：可以是“void boost:：detail:：variant:：visitation\u impl（const int，const int，Visitor&，VoidPtrCV，boost:：mpl:：false，nobackflag，Which*，step0*）”
1> 与
1>          [
1> Visitor=boost:：detail:：variant:：复制到，
1> VoidPtrCV=常数void*，
1> NoBackupFlag=boost:：variant:：具有\u回退\u类型，
1> Which=下一个，
1> 步骤0=下一步
1>          ]
1> d:\libraries\boost\u 1\u 61\u 0\boost\variant\detail\visitation\u impl.hpp（183）：注意：或“void boost:：detail:：variant:：visitation\u impl（int，int，Visitor&，VPCV，boost:：mpl:：true，NBF，W*，S*）”
1> 与
1>          [
1> Visitor=boost:：detail:：variant:：复制到，
1> VoidPtrCV=常数void*，
1> NoBackupFlag=boost:：variant:：具有\u回退\u类型，
1> VPCV=常数void*，
1> NBF=boost:：variant:：具有\u回退\u类型，
1> W=下一个，
1> S=下一步
1>          ]
1> d:\libraries\boost\u 1
1>d:\libraries\boost_1_61_0\boost\variant\detail\visitation_impl.hpp(267): error C2665: 'boost::detail::variant::visitation_impl': none of the 2 overloads could convert all the argument types
1>  d:\libraries\boost_1_61_0\boost\variant\detail\visitation_impl.hpp(201): note: could be 'void boost::detail::variant::visitation_impl<next_which,next_step,Visitor,VoidPtrCV,NoBackupFlag>(const int,const int,Visitor &,VoidPtrCV,boost::mpl::false_,NoBackupFlag,Which *,step0 *)'
1>          with
1>          [
1>              Visitor=boost::detail::variant::destroyer,
1>              VoidPtrCV=void *,
1>              NoBackupFlag=boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,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_>::has_fallback_type_,
1>              Which=next_which,
1>              step0=next_step
1>          ]
1>  d:\libraries\boost_1_61_0\boost\variant\detail\visitation_impl.hpp(183): note: or       'void boost::detail::variant::visitation_impl<next_which,next_step,Visitor,VoidPtrCV,NoBackupFlag>(int,int,Visitor &,VPCV,boost::mpl::true_,NBF,W *,S *)'
1>          with
1>          [
1>              Visitor=boost::detail::variant::destroyer,
1>              VoidPtrCV=void *,
1>              NoBackupFlag=boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,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_>::has_fallback_type_,
1>              VPCV=void *,
1>              NBF=boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,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_>::has_fallback_type_,
1>              W=next_which,
1>              S=next_step
1>          ]
1>  d:\libraries\boost_1_61_0\boost\variant\detail\visitation_impl.hpp(267): note: while trying to match the argument list '(const int, const int, boost::detail::variant::destroyer, void *, is_apply_visitor_unrolled, boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,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_>::has_fallback_type_, next_which *, next_step *)'
1>  d:\libraries\boost_1_61_0\boost\variant\variant.hpp(2326): note: see reference to function template instantiation 'void boost::detail::variant::visitation_impl<first_which,first_step,Visitor,VoidPtrCV,boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,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_>::has_fallback_type_>(const int,const int,Visitor &,VoidPtrCV,boost::mpl::false_,NoBackupFlag,Which *,step0 *)' being compiled
1>          with
1>          [
1>              Visitor=boost::detail::variant::destroyer,
1>              VoidPtrCV=void *,
1>              NoBackupFlag=boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,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_>::has_fallback_type_,
1>              Which=first_which,
1>              step0=first_step
1>          ]
1>  d:\libraries\boost_1_61_0\boost\variant\variant.hpp(2337): note: see reference to function template instantiation 'void boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,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_>::internal_apply_visitor_impl<Visitor,void*>(int,int,Visitor &,VoidPtrCV)' being compiled
1>          with
1>          [
1>              Visitor=boost::detail::variant::destroyer,
1>              VoidPtrCV=void *
1>          ]
1>  d:\libraries\boost_1_61_0\boost\variant\variant.hpp(2335): note: see reference to function template instantiation 'void boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,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_>::internal_apply_visitor_impl<Visitor,void*>(int,int,Visitor &,VoidPtrCV)' being compiled
1>          with
1>          [
1>              Visitor=boost::detail::variant::destroyer,
1>              VoidPtrCV=void *
1>          ]
1>  d:\libraries\boost_1_61_0\boost\variant\variant.hpp(1345): note: see reference to function template instantiation 'void boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,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_>::internal_apply_visitor<boost::detail::variant::destroyer>(Visitor &)' being compiled
1>          with
1>          [
1>              Visitor=boost::detail::variant::destroyer
1>          ]
1>  d:\libraries\boost_1_61_0\boost\variant\variant.hpp(1345): note: see reference to function template instantiation 'void boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,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_>::internal_apply_visitor<boost::detail::variant::destroyer>(Visitor &)' being compiled
1>          with
1>          [
1>              Visitor=boost::detail::variant::destroyer
1>          ]
1>  d:\libraries\boost_1_61_0\boost\variant\variant.hpp(1343): note: while compiling class template member function 'void boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,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_>::destroy_content(void) noexcept'
1>  d:\libraries\boost_1_61_0\boost\variant\variant.hpp(1352): note: see reference to function template instantiation 'void boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,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_>::destroy_content(void) noexcept' being compiled
1>  d:\libraries\boost_1_61_0\boost\signals2\slot_base.hpp(47): note: see reference to class template instantiation 'boost::variant<boost::shared_ptr<void>,boost::signals2::detail::foreign_void_shared_ptr,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_>' being compiled

1>d:\libraries\boost_1_61_0\boost\variant\detail\visitation_impl.hpp(267): error C2665: 'boost::detail::variant::visitation_impl': none of the 2 overloads could convert all the argument types
1>  d:\libraries\boost_1_61_0\boost\variant\detail\visitation_impl.hpp(201): note: could be 'void boost::detail::variant::visitation_impl<next_which,next_step,Visitor,VoidPtrCV,NoBackupFlag>(const int,const int,Visitor &,VoidPtrCV,boost::mpl::false_,NoBackupFlag,Which *,step0 *)'
1>          with
1>          [
1>              Visitor=boost::detail::variant::copy_into,
1>              VoidPtrCV=const void *,
1>              NoBackupFlag=boost::variant<uint16_t,boost::shared_future<uint16_t>,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_>::has_fallback_type_,
1>              Which=next_which,
1>              step0=next_step
1>          ]
1>  d:\libraries\boost_1_61_0\boost\variant\detail\visitation_impl.hpp(183): note: or       'void boost::detail::variant::visitation_impl<next_which,next_step,Visitor,VoidPtrCV,NoBackupFlag>(int,int,Visitor &,VPCV,boost::mpl::true_,NBF,W *,S *)'
1>          with
1>          [
1>              Visitor=boost::detail::variant::copy_into,
1>              VoidPtrCV=const void *,
1>              NoBackupFlag=boost::variant<uint16_t,boost::shared_future<uint16_t>,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_>::has_fallback_type_,
1>              VPCV=const void *,
1>              NBF=boost::variant<uint16_t,boost::shared_future<uint16_t>,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_>::has_fallback_type_,
1>              W=next_which,
1>              S=next_step
1>          ]
1>  d:\libraries\boost_1_61_0\boost\variant\detail\visitation_impl.hpp(267): note: while trying to match the argument list '(const int, const int, boost::detail::variant::copy_into, const void *, is_apply_visitor_unrolled, boost::variant<uint16_t,boost::shared_future<uint16_t>,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_>::has_fallback_type_, next_which *, next_step *)'
1>  d:\libraries\boost_1_61_0\boost\variant\variant.hpp(2326): note: see reference to function template instantiation 'void boost::detail::variant::visitation_impl<first_which,first_step,Visitor,VoidPtrCV,boost::variant<uint16_t,boost::shared_future<uint16_t>,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_>::has_fallback_type_>(const int,const int,Visitor &,VoidPtrCV,boost::mpl::false_,NoBackupFlag,Which *,step0 *)' being compiled
1>          with
1>          [
1>              Visitor=boost::detail::variant::copy_into,
1>              VoidPtrCV=const void *,
1>              NoBackupFlag=boost::variant<uint16_t,boost::shared_future<uint16_t>,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_>::has_fallback_type_,
1>              Which=first_which,
1>              step0=first_step
1>          ]
1>  d:\libraries\boost_1_61_0\boost\variant\variant.hpp(2348): note: see reference to function template instantiation 'void boost::variant<uint16_t,boost::shared_future<uint16_t>,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_>::internal_apply_visitor_impl<Visitor,const void*>(int,int,Visitor &,VoidPtrCV)' being compiled
1>          with
1>          [
1>              Visitor=boost::detail::variant::copy_into,
1>              VoidPtrCV=const void *
1>          ]
1>  d:\libraries\boost_1_61_0\boost\variant\variant.hpp(2346): note: see reference to function template instantiation 'void boost::variant<uint16_t,boost::shared_future<uint16_t>,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_>::internal_apply_visitor_impl<Visitor,const void*>(int,int,Visitor &,VoidPtrCV)' being compiled
1>          with
1>          [
1>              Visitor=boost::detail::variant::copy_into,
1>              VoidPtrCV=const void *
1>          ]
1>  d:\libraries\boost_1_61_0\boost\variant\variant.hpp(1746): note: see reference to function template instantiation 'void boost::variant<uint16_t,boost::shared_future<uint16_t>,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_>::internal_apply_visitor<boost::detail::variant::copy_into>(Visitor &) const' being compiled
1>          with
1>          [
1>              Visitor=boost::detail::variant::copy_into
1>          ]
1>  d:\libraries\boost_1_61_0\boost\variant\variant.hpp(1746): note: see reference to function template instantiation 'void boost::variant<uint16_t,boost::shared_future<uint16_t>,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_>::internal_apply_visitor<boost::detail::variant::copy_into>(Visitor &) const' being compiled
1>          with
1>          [
1>              Visitor=boost::detail::variant::copy_into
1>          ]
1>  d:\libraries\boost_1_61_0\boost\variant\variant.hpp(1742): note: while compiling class template member function 'boost::variant<uint16_t,boost::shared_future<uint16_t>,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_>::variant(const boost::variant<uint16_t,boost::shared_future<uint16_t>,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_> &)'
1>  d:\libraries\cpp-netlib-0.11.2-final\build\install\include\boost\network\protocol\http\message\directives\status.hpp(36): note: see reference to function template instantiation 'boost::variant<uint16_t,boost::shared_future<uint16_t>,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_>::variant(const boost::variant<uint16_t,boost::shared_future<uint16_t>,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_> &)' being compiled
1>  d:\libraries\cpp-netlib-0.11.2-final\build\install\include\boost\network\protocol\http\message\directives\status.hpp(29): note: see reference to class template instantiation 'boost::variant<uint16_t,boost::shared_future<uint16_t>,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_>' being compiled