Joaquín Mª López Muñoz <joaquin <at> tid.es> writes:
The problem with rev 41387 is *not* that non-standard traits aren't supported for legacy compilers, but that lexical_cast is simply broken for such compilers, any code that used to use lexical_cast won't compile now , it's not about new features in boost::lexical_cast.
I didn't realise it's broken. Can you please try this change? template<typename Target, typename Source> Target lexical_cast(Source arg) { typedef typename detail::widest_char< typename detail::stream_char<Target>::type , typename detail::stream_char<src>::type >::type char_type; typedef std::char_traits<char_type> traits; detail::lexical_stream<Target, Source, traits> interpreter; Target result; ... } Most notably, Boost.Test uses lexical_cast internally, so any lib that uses
Boost.Test with a legacy compiler is now broken (this is actually my case.)
I hate this dependency between Boost.Test and lexical_cast_test which is based on it.
Unless you want to ban every usage of lexical_cast in MSVC++ 6.0/7.0 and compilers without PTS, wouldn't be possible to provide some standard traits class in the usage of lexical_stream at line 1183 so as to not break legacy code?
Sure. If the code above won't work, you'll have to wait approx 12 hours for the fix. I don't have an access to old MSVC so I'm going to -DBOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION and see what it breaks. -- Alexander