id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
12243	Boost.Serialization compilation error in Visual Studio with Zc:wchar_t-	anonymous	Robert Ramey	"The error is following:

{{{
C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\INCLUDE\limits(85) : error C2090: function returns array
        H:\Third_party_src\boost\boost_1_61_0-compiled\boost/archive/basic_text_oprimitive.hpp(147) : see reference to class template instantiation 'std::numeric_limits<_Ty>' being compiled
        with
        [
            _Ty=const unsigned short [24]
        ]
        H:\Third_party_src\boost\boost_1_61_0-compiled\boost/archive/basic_text_oprimitive.hpp(180) : see reference to class template instantiation 'boost::archive::basic_text_oprimitive<OStream>::is_float<T>' being compiled
        with
        [
            OStream=std::wostream,
            T=const unsigned short [24]
        ]
        H:\Third_party_src\boost\boost_1_61_0-compiled\boost/archive/xml_woarchive.hpp(73) : see reference to function template instantiation 'void boost::archive::basic_text_oprimitive<OStream>::save<const unsigned short[24]>(T (&))' being compiled
        with
        [
            OStream=std::wostream,
            T=const unsigned short [24]
        ]
        H:\Third_party_src\boost\boost_1_61_0-compiled\boost/archive/xml_woarchive.hpp(73) : see reference to function template instantiation 'void boost::archive::basic_text_oprimitive<OStream>::save<const unsigned short[24]>(T (&))' being compiled
        with
        [
            OStream=std::wostream,
            T=const unsigned short [24]
        ]
        H:\Third_party_src\boost\boost_1_61_0-compiled\boost/archive/impl/xml_woarchive_impl.ipp(144) : see reference to function template instantiation 'void boost::archive::xml_woarchive_impl<Archive>::save<const unsigned short[24]>(T (&))' being compiled
        with
        [
            Archive=boost::archive::xml_woarchive,
            T=const unsigned short [24]
        ]
...............................
}}}

The problem is with '''boost/archive/impl/xml_woarchive_impl.ipp(144)''' line:
{{{
        save(L""</boost_serialization>\n"");
}}}
It's fixed by replacing line with
{{{
        save((const wchar_t*)L""</boost_serialization>\n"");
}}}

Interesting error, as it treats the literal L""</boost_serialization>\n"" as 'const unsigned short [24]' and picks
{{{
template<class T>
    void
    save(const T & t){
        basic_text_oprimitive<std::wostream>::save(t);
    }
}}}
from '''boost/archive/xml_woarchive.hpp''' , instead of correct

{{{
    #ifndef BOOST_NO_INTRINSIC_WCHAR_T
    BOOST_WARCHIVE_DECL void 
    save(const wchar_t * t);
    #endif
}}}


And... If we remove the
{{{
    #ifndef BOOST_NO_INTRINSIC_WCHAR_T
}}}
everything (including /Zc:wchar_t and /Zc:wchar_t- configurations) compiles fine.


'''So the actual bug is this 'ifndef'.'''

Why it was placed here? Most likely by mistake.

Please remove this 'ifndef'.

"	Bugs	new	To Be Determined	serialization	Boost 1.61.0	Showstopper