id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
7949	Level 4 Warnings with VS2005	Peter Brockamp <p.brockamp@…>	Antony Polukhin	"Try to compile the following with /W4 under VS2005:

{{{
#include ""boost/lexical_cast.hpp""
#include ""boost/date_time.hpp""
}}}

This will give you a bunch of warnings:

{{{
\boost\lexical_cast.hpp(732) : warning C4244: '+=' : conversion from 'int' to 'unsigned short', possible loss of data
\boost\lexical_cast.hpp(1627) : see reference to function template instantiation 'bool boost::detail::lcast_ret_unsigned<Traits,Type,CharT>(T &,const CharT *const ,const CharT *)' being compiled
\boost\lexical_cast.hpp(1751) : see reference to function template instantiation 'bool boost::detail::lexical_stream_limited_src<CharT,Traits,RequiresStringbuffer>::shr_unsigned<unsigned short>(Type &)' being compiled
\boost\lexical_cast.hpp(1751) : while compiling class template member function 'bool boost::detail::lexical_stream_limited_src<CharT,Traits,RequiresStringbuffer>::operator >>(unsigned short &)'
\boost\lexical_cast.hpp(2137) : see reference to class template instantiation 'boost::detail::lexical_stream_limited_src<CharT,Traits,RequiresStringbuffer>' being compiled
\boost\lexical_cast.hpp(2083) : while compiling class template member function 'unsigned short boost::detail::lexical_cast_do_cast<Target,Source>::lexical_cast_impl(const Source &)'
\boost\lexical_cast.hpp(2300) : see reference to class template instantiation 'boost::detail::lexical_cast_do_cast<Target,Source>' being compiled
\boost\date_time\date_parsing.hpp(138) : see reference to function template instantiation 'Target boost::lexical_cast<unsigned short,Type>(const Source &)' being compiled
\boost\date_time\gregorian\parsers.hpp(30) : see reference to function template instantiation 'date_type boost::date_time::parse_date<boost::gregorian::date>(const std::string &,int)' being compiled
\boost\lexical_cast.hpp(780) : warning C4244: '+=' : conversion from 'int' to 'unsigned short', possible loss of data
}}}

Attached a patch which silences these, as is done in other libraries.
"	Bugs	closed	Boost 1.54.0	lexical_cast	Boost 1.52.0	Optimization	fixed	warnings VS2005