[cfe-dev] Compiling Boost.TypeTraits tests using VC++ RTL

[Edward Diener]

On 11/5/2013 11:48 AM, Hans Wennborg wrote:
> Hi Edward,
>
> On Fri, Nov 1, 2013 at 8:57 AM, Edward Diener
> <eldlistmailingz at tropicsoft.com> wrote:
>> If I compile Boost type traits on Windows using VC++ RTL I get:
>>
>> "add_const_test.cpp"
>> -Fo"..\..\..\bin.v2\libs\type_traits\test\add_const_test.test\clang-vc10-win-3.4\debug\add_const_test.obj"
>> -TP /Od /Ob0 /W4 /GR /MDd  /Zc:forScope /Zc:wchar_t -fmsc-version=1600
>> /wd4675 /EHs -c
>> -DBOOST_ALL_NO_LIB=1
>> "-I..\..\.."
>> compile-c-c++
>> ..\..\..\bin.v2\libs\type_traits\test\add_const_test.test\clang-vc10-win-3.4\debug\add_const_test.obj
>>
>>      call "C:\Program Files\Microsoft Visual Studio 10.0\VC\vcvarsall.bat"
>> x86 > nul
>>
>> "C:\Programming\VersionControl\clang_build\bin\Release\clang-cl.exe"
>> @"..\..\..\bin.v2\libs\type_traits\test\add_const_test.test\clang-vc10-win-3.4\debug\add_const_test.obj.rsp"
>>
>> clang-cl.exe: warning: argument unused during compilation: '/EHs'
>> error: cannot mangle RTTI descriptors for type 'codecvt' yet
>> error: cannot mangle the name of type 'codecvt' into RTTI descriptors yet
>> error: cannot mangle RTTI descriptors for type 'codecvt_base' yet
>> error: cannot mangle the name of type 'codecvt_base' into RTTI descriptors
>> yet
>> error: cannot mangle RTTI descriptors for type 'facet' yet
>> error: cannot mangle the name of type 'facet' into RTTI descriptors yet
>> 6 errors generated.""
>>
>> If I add '-D_HAS_EXCEPTIONS=0 /GR-' as recommended I then get, when
>> including 'typeinfo':
>>
>> ""add_const_test.cpp"
>> -Fo"..\..\..\bin.v2\libs\type_traits\test\add_const_test.test\clang-vc10-win-3.4\debug\add_const_test.obj"
>> -TP /Od /Ob0 /W4 /GR /MDd  /Zc:forScope /Zc:wchar_t -fmsc-version=1600
>> /wd4675 /EHs -D_HAS_EXCEPTIONS=0 /EH- /GR- -c
>> -DBOOST_ALL_NO_LIB=1
>> "-I..\..\.."
>> compile-c-c++
>> ..\..\..\bin.v2\libs\type_traits\test\add_const_test.test\clang-vc10-win-3.4\debug\add_const_test.obj
>>
>>      call "C:\Program Files\Microsoft Visual Studio 10.0\VC\vcvarsall.bat"
>> x86 > nul
>>
>> "C:\Programming\VersionControl\clang_build\bin\Release\clang-cl.exe"
>> @"..\..\..\bin.v2\libs\type_traits\test\add_const_test.test\clang-vc10-win-3.4\debug\add_const_test.obj.rsp"
>>
>> clang-cl.exe: warning: argument unused during compilation: '/EHs'
>> clang-cl.exe: warning: argument unused during compilation: '/EH-'
>> In file included from add_const_test.cpp:7:
>> In file included from ./test.hpp:10:
>> In file included from ..\..\..\boost/config.hpp:44:
>> In file included from ..\..\..\boost/config/stdlib/dinkumware.hpp:89:
>> c:\Program Files\Microsoft Visual Studio 10.0\VC\INCLUDE\typeinfo(156,10) :
>> error: unknown class name 'exception'; did you mean '_exception'?
>>          : public exception"
>>
>> Is there a workaround to either of these problems ?
>
> It seems the reality here is that clang-cl just cannot compile this
> file today. The work-around for that situation is to compile with the
> /fallback option [1]. I also just published a blog post about this
> [2].
>
> Hopefully that helps.

Even with /fallback specified I am still seeing:

error(clang): cannot mangle RTTI descriptors for type 'codecvt' yet
error(clang): cannot mangle the name of type 'codecvt' into RTTI 
descriptors yet
error(clang): cannot mangle RTTI descriptors for type 'codecvt_base' yet
error(clang): cannot mangle the name of type 'codecvt_base' into RTTI 
descriptors yet
error(clang): cannot mangle RTTI descriptors for type 'facet' yet
error(clang): cannot mangle the name of type 'facet' into RTTI 
descriptors yet
error(clang): cannot mangle RTTI descriptors for type '_Facet_base' yet
error(clang): cannot mangle the name of type '_Facet_base' into RTTI 
descriptors yet

BTW I see a great deal of:

note(clang): expanded from macro 'XXX'

in the output when macros are bring expanded. While this may be 
ordinarily helpful for macro expansion I would like to turn this off by 
default. How do I do that ?