https://svn.boost.org/trac10/ticket/8649 <p> Using Windows Visual Studio VC11 Nov 2012 CTP in generating for 64-bit, an application using boost.log from 1.54.0b1 with wide strings fails to compile where the source forge revision 854 built and worked properly. </p> <p> Error message follows: </p> <p> 1&gt;C:\Users\Charles_J_Wilson\Documents\Projects\external\open_source\boost\1.54.0\boost_1_54_0\boost/log/utility/functional/logical.hpp(84): error C2678: binary '==' : no operator found which takes a left-hand operand of type 'const std::basic_string&lt;wchar_t,std::char_traits&lt;wchar_t&gt;,std::allocator&lt;wchar_t&gt;&gt;' (or there is no acceptable conversion) 1&gt; C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\include\exception(507): could be 'bool std::operator ==(const std::exception_ptr &amp;,const std::exception_ptr &amp;)' [found using argument-dependent lookup] 1&gt; C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\include\exception(512): or 'bool std::operator ==(std::nullptr_t,const std::exception_ptr &amp;)' [found using argument-dependent lookup] 1&gt; C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\include\exception(517): or 'bool std::operator ==(const std::exception_ptr &amp;,std::nullptr_t)' [found using argument-dependent lookup] 1&gt; C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\include\system_error(426): or 'bool std::operator ==(const std::error_code &amp;,const std::error_condition &amp;) throw()' [found using argument-dependent lookup] 1&gt; C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\include\system_error(434): or 'bool std::operator ==(const std::error_condition &amp;,const std::error_code &amp;) throw()' [found using argument-dependent lookup] 1&gt; C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\include\tuple(572): or 'bool std::operator ==(const std::tuple&lt;std::_Nil,std::_Nil,std::_Nil,std::_Nil,std::_Nil,std::_Nil,std::_Nil,std::_Nil&gt; &amp;,const std::tuple&lt;std::_Nil,std::_Nil,std::_Nil,std::_Nil,std::_Nil,std::_Nil,std::_Nil,std::_Nil&gt; &amp;)' [found using argument-dependent lookup] 1&gt; while trying to match the argument list '(const std::basic_string&lt;wchar_t,std::char_traits&lt;wchar_t&gt;,std::allocator&lt;wchar_t&gt;&gt;, const std::basic_string&lt;char,std::char_traits&lt;char&gt;,std::allocator&lt;char&gt;&gt;)' 1&gt; C:\Users\Charles_J_Wilson\Documents\Projects\external\open_source\boost\1.54.0\boost_1_54_0\boost/log/utility/functional/logical.hpp(77) : see reference to function template instantiation 'bool boost::log::v2_mt_nt5::equal_to::op&lt;T,U&gt;(const T &amp;,const U &amp;,const boost::mpl::false_ &amp;)' being compiled 1&gt; with 1&gt; [ 1&gt; T=std::basic_string&lt;wchar_t,std::char_traits&lt;wchar_t&gt;,std::allocator&lt;wchar_t&gt;&gt; 1&gt; , U=std::basic_string&lt;char,std::char_traits&lt;char&gt;,std::allocator&lt;char&gt;&gt; 1&gt; ] 1&gt; C:\Users\Charles_J_Wilson\Documents\Projects\external\open_source\boost\1.54.0\boost_1_54_0\boost/log/utility/functional/bind.hpp(131) : see reference to function template instantiation 'bool boost::log::v2_mt_nt5::equal_to::operator ()&lt;T,U&gt;(const T &amp;,const U &amp;) const' being compiled 1&gt; with 1&gt; [ 1&gt; T=std::basic_string&lt;wchar_t,std::char_traits&lt;wchar_t&gt;,std::allocator&lt;wchar_t&gt;&gt; 1&gt; , U=std::basic_string&lt;char,std::char_traits&lt;char&gt;,std::allocator&lt;char&gt;&gt; 1&gt; ] 1&gt; C:\Users\Charles_J_Wilson\Documents\Projects\external\open_source\boost\1.54.0\boost_1_54_0\boost/log/utility/value_ref.hpp(230) : see reference to function template instantiation 'bool boost::log::v2_mt_nt5::binder2nd&lt;boost::log::v2_mt_nt5::equal_to,const U &amp;&gt;::operator ()&lt;std::basic_string&lt;wchar_t,std::char_traits&lt;wchar_t&gt;,std::allocator&lt;wchar_t&gt;&gt;&gt;(const T &amp;) const' being compiled 1&gt; with 1&gt; [ 1&gt; U=std::basic_string&lt;char,std::char_traits&lt;char&gt;,std::allocator&lt;char&gt;&gt; 1&gt; , T=std::basic_string&lt;wchar_t,std::char_traits&lt;wchar_t&gt;,std::allocator&lt;wchar_t&gt;&gt; 1&gt; ] 1&gt; C:\Users\Charles_J_Wilson\Documents\Projects\external\open_source\boost\1.54.0\boost_1_54_0\boost/log/utility/value_ref.hpp(230) : see reference to function template instantiation 'bool boost::log::v2_mt_nt5::binder2nd&lt;boost::log::v2_mt_nt5::equal_to,const U &amp;&gt;::operator ()&lt;std::basic_string&lt;wchar_t,std::char_traits&lt;wchar_t&gt;,std::allocator&lt;wchar_t&gt;&gt;&gt;(const T &amp;) const' being compiled 1&gt; with 1&gt; [ 1&gt; U=std::basic_string&lt;char,std::char_traits&lt;char&gt;,std::allocator&lt;char&gt;&gt; 1&gt; , T=std::basic_string&lt;wchar_t,std::char_traits&lt;wchar_t&gt;,std::allocator&lt;wchar_t&gt;&gt; 1&gt; ] 1&gt; C:\Users\Charles_J_Wilson\Documents\Projects\external\open_source\boost\1.54.0\boost_1_54_0\boost/log/utility/value_ref.hpp(506) : see reference to function template instantiation 'bool boost::log::v2_mt_nt5::aux::singular_ref&lt;std::basic_string&lt;wchar_t,std::char_traits&lt;wchar_t&gt;,std::allocator&lt;wchar_t&gt;&gt;,TagT&gt;::apply_visitor_or_default&lt;boost::log::v2_mt_nt5::binder2nd&lt;boost::log::v2_mt_nt5::equal_to,const U &amp;&gt;,bool&gt;(VisitorT,const DefaultT &amp;) const' being compiled 1&gt; with 1&gt; [ 1&gt; TagT=tag::a_tag 1&gt; , U=std::basic_string&lt;char,std::char_traits&lt;char&gt;,std::allocator&lt;char&gt;&gt; 1&gt; , VisitorT=boost::log::v2_mt_nt5::binder2nd&lt;boost::log::v2_mt_nt5::equal_to,const std::basic_string&lt;char,std::char_traits&lt;char&gt;,std::allocator&lt;char&gt;&gt; &amp;&gt; 1&gt; , DefaultT=bool 1&gt; ] 1&gt; C:\Users\Charles_J_Wilson\Documents\Projects\external\open_source\boost\1.54.0\boost_1_54_0\boost/log/utility/value_ref.hpp(506) : see reference to function template instantiation 'bool boost::log::v2_mt_nt5::aux::singular_ref&lt;std::basic_string&lt;wchar_t,std::char_traits&lt;wchar_t&gt;,std::allocator&lt;wchar_t&gt;&gt;,TagT&gt;::apply_visitor_or_default&lt;boost::log::v2_mt_nt5::binder2nd&lt;boost::log::v2_mt_nt5::equal_to,const U &amp;&gt;,bool&gt;(VisitorT,const DefaultT &amp;) const' being compiled 1&gt; with 1&gt; [ 1&gt; TagT=tag::a_tag 1&gt; , U=std::basic_string&lt;char,std::char_traits&lt;char&gt;,std::allocator&lt;char&gt;&gt; 1&gt; , VisitorT=boost::log::v2_mt_nt5::binder2nd&lt;boost::log::v2_mt_nt5::equal_to,const std::basic_string&lt;char,std::char_traits&lt;char&gt;,std::allocator&lt;char&gt;&gt; &amp;&gt; 1&gt; , DefaultT=bool 1&gt; ] 1&gt; C:\Users\Charles_J_Wilson\Documents\Projects\external\open_source\boost\1.54.0\boost_1_54_0\boost/proto/transform/default.hpp(146) : see reference to function template instantiation 'bool boost::log::v2_mt_nt5::operator ==&lt;std::basic_string&lt;wchar_t,std::char_traits&lt;wchar_t&gt;,std::allocator&lt;wchar_t&gt;&gt;,TagT,T&gt;(const boost::log::v2_mt_nt5::value_ref&lt;std::basic_string&lt;wchar_t,std::char_traits&lt;wchar_t&gt;,std::allocator&lt;wchar_t&gt;&gt;,TagT&gt; &amp;,const U &amp;)' being compiled 1&gt; with 1&gt; [ 1&gt; TagT=tag::a_tag 1&gt; , T=std::basic_string&lt;char,std::char_traits&lt;char&gt;,std::allocator&lt;char&gt;&gt; 1&gt; , U=std::basic_string&lt;char,std::char_traits&lt;char&gt;,std::allocator&lt;char&gt;&gt; 1&gt; ] 1&gt; C:\Users\Charles_J_Wilson\Documents\Projects\external\open_source\boost\1.54.0\boost_1_54_0\boost/proto/transform/default.hpp(146) : while compiling class template member function 'bool boost::proto::detail::default_equal_to&lt;Grammar&gt;::impl&lt;Expr &amp;,State,Data&gt;::operator ()(boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;Tag,Args,2&gt;&gt; ,boost::phoenix::vector2&lt;const boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::logical_and,boost::proto::argsns_::list2&lt;boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::logical_and,boost::proto::argsns_::list2&lt;boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::greater_equal,boost::proto::argsns_::list2&lt;boost::log::v2_mt_nt5::expressions::attribute_actor&lt;ppa_log_levels,boost::log::v2_mt_nt5::fallback_to_none,tag::a_severity,ActorT&gt;,boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::terminal,boost::proto::argsns_::term&lt;ppa_log_levels&gt;,0&gt;&gt;&gt;,2&gt;&gt;,boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::less_equal,boost::proto::argsns_::list2&lt;boost::log::v2_mt_nt5::expressions::attribute_actor&lt;ppa_log_levels,boost::log::v2_mt_nt5::fallback_to_none,tag::a_severity,ActorT&gt;,boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::terminal,boost::proto::argsns_::term&lt;ppa_log_levels&gt;,0&gt;&gt;&gt;,2&gt;&gt;&gt;,2&gt;&gt;,boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;Tag,Args,2&gt;&gt;&gt;,2&gt;&gt; *,A0&gt; ,const boost::phoenix::default_actions &amp;) const' 1&gt; with 1&gt; [ 1&gt; Grammar=boost::phoenix::meta_grammar 1&gt; , Expr=boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::equal_to,boost::proto::argsns_::list2&lt;boost::log::v2_mt_nt5::expressions::attribute_actor&lt;std::basic_string&lt;wchar_t,std::char_traits&lt;wchar_t&gt;,std::allocator&lt;wchar_t&gt;&gt;,boost::log::v2_mt_nt5::fallback_to_none,tag::a_tag,boost::phoenix::actor&gt;,boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::terminal,boost::proto::argsns_::term&lt;std::basic_string&lt;char,std::char_traits&lt;char&gt;,std::allocator&lt;char&gt;&gt;&gt;,0&gt;&gt;&gt;,2&gt;&gt; 1&gt; , State=boost::phoenix::vector2&lt;const boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::logical_and,boost::proto::argsns_::list2&lt;boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::logical_and,boost::proto::argsns_::list2&lt;boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::greater_equal,boost::proto::argsns_::list2&lt;boost::log::v2_mt_nt5::expressions::attribute_actor&lt;ppa_log_levels,boost::log::v2_mt_nt5::fallback_to_none,tag::a_severity,boost::phoenix::actor&gt;,boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::terminal,boost::proto::argsns_::term&lt;ppa_log_levels&gt;,0&gt;&gt;&gt;,2&gt;&gt;,boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::less_equal,boost::proto::argsns_::list2&lt;boost::log::v2_mt_nt5::expressions::attribute_actor&lt;ppa_log_levels,boost::log::v2_mt_nt5::fallback_to_none,tag::a_severity,boost::phoenix::actor&gt;,boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::terminal,boost::proto::argsns_::term&lt;ppa_log_levels&gt;,0&gt;&gt;&gt;,2&gt;&gt;&gt;,2&gt;&gt;,boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::equal_to,boost::proto::argsns_::list2&lt;boost::log::v2_mt_nt5::expressions::attribute_actor&lt;std::basic_string&lt;wchar_t,std::char_traits&lt;wchar_t&gt;,std::allocator&lt;wchar_t&gt;&gt;,boost::log::v2_mt_nt5::fallback_to_none,tag::a_tag,boost::phoenix::actor&gt;,boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::terminal,boost::proto::argsns_::term&lt;std::basic_string&lt;char,std::char_traits&lt;char&gt;,std::allocator&lt;char&gt;&gt;&gt;,0&gt;&gt;&gt;,2&gt;&gt;&gt;,2&gt;&gt; *,const boost::log::v2_mt_nt5::attribute_value_set &amp;&gt; &amp; 1&gt; , Data=const boost::phoenix::default_actions &amp; 1&gt; , Tag=boost::proto::tagns_::tag::equal_to 1&gt; , Args=boost::proto::argsns_::list2&lt;boost::log::v2_mt_nt5::expressions::attribute_actor&lt;std::basic_string&lt;wchar_t,std::char_traits&lt;wchar_t&gt;,std::allocator&lt;wchar_t&gt;&gt;,boost::log::v2_mt_nt5::fallback_to_none,tag::a_tag,boost::phoenix::actor&gt;,boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::terminal,boost::proto::argsns_::term&lt;std::basic_string&lt;char,std::char_traits&lt;char&gt;,std::allocator&lt;char&gt;&gt;&gt;,0&gt;&gt;&gt; 1&gt; , ActorT=boost::phoenix::actor 1&gt; , A0=const boost::log::v2_mt_nt5::attribute_value_set &amp; 1&gt; ] 1&gt; C:\Users\Charles_J_Wilson\Documents\Projects\external\open_source\boost\1.54.0\boost_1_54_0\boost/proto/transform/default.hpp(149) : see reference to function template instantiation 'bool boost::proto::detail::default_equal_to&lt;Grammar&gt;::impl&lt;Expr &amp;,State,Data&gt;::operator ()(boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;Tag,Args,2&gt;&gt; ,boost::phoenix::vector2&lt;const boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::logical_and,boost::proto::argsns_::list2&lt;boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::logical_and,boost::proto::argsns_::list2&lt;boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::greater_equal,boost::proto::argsns_::list2&lt;boost::log::v2_mt_nt5::expressions::attribute_actor&lt;ppa_log_levels,boost::log::v2_mt_nt5::fallback_to_none,tag::a_severity,ActorT&gt;,boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::terminal,boost::proto::argsns_::term&lt;ppa_log_levels&gt;,0&gt;&gt;&gt;,2&gt;&gt;,boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::less_equal,boost::proto::argsns_::list2&lt;boost::log::v2_mt_nt5::expressions::attribute_actor&lt;ppa_log_levels,boost::log::v2_mt_nt5::fallback_to_none,tag::a_severity,ActorT&gt;,boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::terminal,boost::proto::argsns_::term&lt;ppa_log_levels&gt;,0&gt;&gt;&gt;,2&gt;&gt;&gt;,2&gt;&gt;,boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;Tag,Args,2&gt;&gt;&gt;,2&gt;&gt; *,A0&gt; ,const boost::phoenix::default_actions &amp;) const' being compiled 1&gt; with 1&gt; [ 1&gt; Grammar=boost::phoenix::meta_grammar 1&gt; , Expr=boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::equal_to,boost::proto::argsns_::list2&lt;boost::log::v2_mt_nt5::expressions::attribute_actor&lt;std::basic_string&lt;wchar_t,std::char_traits&lt;wchar_t&gt;,std::allocator&lt;wchar_t&gt;&gt;,boost::log::v2_mt_nt5::fallback_to_none,tag::a_tag,boost::phoenix::actor&gt;,boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::terminal,boost::proto::argsns_::term&lt;std::basic_string&lt;char,std::char_traits&lt;char&gt;,std::allocator&lt;char&gt;&gt;&gt;,0&gt;&gt;&gt;,2&gt;&gt; 1&gt; , State=boost::phoenix::vector2&lt;const boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::logical_and,boost::proto::argsns_::list2&lt;boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::logical_and,boost::proto::argsns_::list2&lt;boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::greater_equal,boost::proto::argsns_::list2&lt;boost::log::v2_mt_nt5::expressions::attribute_actor&lt;ppa_log_levels,boost::log::v2_mt_nt5::fallback_to_none,tag::a_severity,boost::phoenix::actor&gt;,boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::terminal,boost::proto::argsns_::term&lt;ppa_log_levels&gt;,0&gt;&gt;&gt;,2&gt;&gt;,boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::less_equal,boost::proto::argsns_::list2&lt;boost::log::v2_mt_nt5::expressions::attribute_actor&lt;ppa_log_levels,boost::log::v2_mt_nt5::fallback_to_none,tag::a_severity,boost::phoenix::actor&gt;,boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::terminal,boost::proto::argsns_::term&lt;ppa_log_levels&gt;,0&gt;&gt;&gt;,2&gt;&gt;&gt;,2&gt;&gt;,boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::equal_to,boost::proto::argsns_::list2&lt;boost::log::v2_mt_nt5::expressions::attribute_actor&lt;std::basic_string&lt;wchar_t,std::char_traits&lt;wchar_t&gt;,std::allocator&lt;wchar_t&gt;&gt;,boost::log::v2_mt_nt5::fallback_to_none,tag::a_tag,boost::phoenix::actor&gt;,boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::terminal,boost::proto::argsns_::term&lt;std::basic_string&lt;char,std::char_traits&lt;char&gt;,std::allocator&lt;char&gt;&gt;&gt;,0&gt;&gt;&gt;,2&gt;&gt;&gt;,2&gt;&gt; *,const boost::log::v2_mt_nt5::attribute_value_set &amp;&gt; &amp; 1&gt; , Data=const boost::phoenix::default_actions &amp; 1&gt; , Tag=boost::proto::tagns_::tag::equal_to 1&gt; , Args=boost::proto::argsns_::list2&lt;boost::log::v2_mt_nt5::expressions::attribute_actor&lt;std::basic_string&lt;wchar_t,std::char_traits&lt;wchar_t&gt;,std::allocator&lt;wchar_t&gt;&gt;,boost::log::v2_mt_nt5::fallback_to_none,tag::a_tag,boost::phoenix::actor&gt;,boost::phoenix::actor&lt;boost::proto::exprns_::expr&lt;boost::proto::tagns_::tag::terminal,boost::proto::argsns_::term&lt;std::basic_string&lt;char,std::char_traits&lt;char&gt;,std::allocator&lt;char&gt;&gt;&gt;,0&gt;&gt;&gt; 1&gt; , ActorT=boost::phoenix::actor 1&gt; , A0=const boost::log::v2_mt_nt5::attribute_value_set &amp; 1&gt; ] </p> en-us /htdocs/site/boost.png https://svn.boost.org/trac10/ticket/8649 Trac 1.4.3 Andrey Semashev Tue, 04 Jun 2013 17:25:55 GMT https://svn.boost.org/trac10/ticket/8649 https://svn.boost.org/trac10/ticket/8649 <ul> <li><strong>attachment</strong> → <span class="trac-field-new">20130604_boost_1_54_0_log_vc11_compile_fail.zip</span> </li> </ul> <p> full compiler failure log (ZIP archive) </p> Ticket Charles Wilson <charles_j_wilson@…> Tue, 04 Jun 2013 18:02:11 GMT https://svn.boost.org/trac10/ticket/8649#comment:6 https://svn.boost.org/trac10/ticket/8649#comment:6 <ul> <li><strong>status</strong> <span class="trac-field-old">new</span> → <span class="trac-field-new">closed</span> </li> <li><strong>resolution</strong> → <span class="trac-field-new">invalid</span> </li> </ul> <p> The type in this macro is the type of the attribute value. You can use any type there, including wide and narrow strings, as long as you use the correspondingly typed tags. But when changing that type, you have to accordingly change the filters that compare tags with strings. </p> Ticket