>From: "Beman Dawes" <[EMAIL PROTECTED]> > At 03:40 PM 3/17/2003, Terje Slettebų wrote: > > >Well, I think this reinforces the suggestion to define > >BOOST_NO_STRINGSTREAM > >for 2.95.x. Comments? > > > >Either that, or to have some way to detect where > std::basic_stringstream<> > >is not supported, and turn off wide character support for that, in > >lexical_cast. Currently, it disables wide character support if one of the > >following macros are set: > > > >BOOST_NO_STRINGSTREAM > >BOOST_NO_STD_WSTRING > >BOOST_NO_INTRINSIC_WCHAR_T > > Are you sure disabling wide character support is really the solution, or > that it is really fully disabled?
Well, as was shown with the earlier lexical_cast, g++ 2.95 does have std::stringstream, but not std::basic_stringstream. This shows that even if it has stringstream, it doesn't have the wide character version of it. This means it can't be used with wide characters with lexical_cast. So this has to be signalled somehow to lexical_cast. Any macro might do, but as it has only partial stringstream support, defining BOOST_NO_STRINGSTREAM seems reasonable. An alternative is to create a macro for partial support, but the end result is the same for lexical_cast: No wide character support for that compiler version. > For the 2.95.x test at > http://boost.sourceforge.net/regression-logs/cs-linux-RC_1_30_0-links.html#c onfig_info%20gcc2953, > BOOST_NO_STD_WSTRING is already defined, so presumably wide character > support is already disabled. > > Look at the error messages from date_time testperiod below, and the source > code lines they refer to. At least directly, they don't seem releated to > wide character support. > > /home/boost/boost-regress-RC_1_30_0/boost/boost/lexical_cast.hpp:173: > syntax error before `;' Line 173 has: std::basic_stringstream<char_type> stream; I think the evidence can't be much clearer. :) The rest appears to be cascading errors, but this is the first reported one. Regards, Terje _______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost
