Re: [boost] Win32/VC++ 6.0 lexical_cast problems

From: Beman Dawes (bdawes_at_[hidden])
Date: 2003-03-19 07:47:39

At 03:13 AM 3/19/2003, Terje Slettebø wrote:

 >Ok, it seems we may have to exclude wide character support for 
lexical_cast
 >on MSVC 6, to avoid breaking Date/Time. I suggest something like:
 >
 >#if defined(BOOST_NO_STRINGSTREAM) || \
 >    defined(BOOST_NO_STD_WSTRING) || \
 >    defined(BOOST_NO_STD_LOCALE) || \
 >    defined(BOOST_NO_CWCHAR) || \
 >    defined(BOOST_MSVC) && (BOOST_MSVC <= 1200)
 >#define DISABLE_WIDE_CHAR_SUPPORT
 >#endif
 >
 >(Testing for BOOST_NO_INTRINSIC_WCHAR_T, instead, would also disable wide
 >character support on Intel C++ (on Windows), which does work with
 >lexical_cast)
 >
 >I've tested this with Date/Time's testclock.cpp (one of the failing 
tests)
 >on MSVC 6 and Intel C++ 7, and it now works.
 >
 >On the plus side, it appears to now work on g++ 2.95.

OK, the full Win32 tests are posted. The date-time tests are now passing.

lexical_cast_test itself is failing for VC++ 6.0. See below.

I don't consider this a showstopper, but if you want to try a fix that is 
OK - we need to wait a bit while the Python folks test changes they've 
recently committed.

--Beman

lexical_cast_test.cpp D:\boost\site-RC_1_30_0\boost/lexical_cast.hpp(147) : 
error C2679: binary '<<' : no operator defined which takes a right-hand 
operand of type 'const class std::basic_string<unsigned short,struct 
std::char_traits<unsigned short>,class std::allocator<unsigned short> >' 
(or there is no acceptable conversion) 
D:\boost\site-RC_1_30_0\boost/lexical_cast.hpp(146) : while compiling 
class-template member function 'bool __thiscall 
boost::detail::lexical_stream<unsigned short,class 
std::basic_string<unsigned short,struct std::char_traits<unsigned 
short>,class std::allocator<unsigned short> > >::operator <<(const class 
std::basic_string<unsigned short,struct std::char_traits<unsigned 
short>,class std::allocator<unsigned short> > &)'