id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
7679,unhex level 4 compile warning in visual studio,Gary Sanders <lex21@…>,Marshall Clow,"
The following code generates a level 4 compiler warning in Visual Studio 2010 and 2012:

{{{
#include <string>
#include <boost/algorithm/hex.hpp>

int main()
{
    std::string base = ""now is the time"";
    std::string hstr = boost::algorithm::hex(base);
    std::string cstr = boost::algorithm::unhex(hstr);
}
}}}

The warnings are:
{{{
1>d:\development\libs\boost_1_52_0\boost/algorithm/hex.hpp(137): warning C4244: '=' : conversion from 'unsigned int' to 'T', possible loss of data

1>          d:\development\libs\boost_1_52_0\boost/algorithm/hex.hpp(204) : see reference to function template instantiation 'std::back_insert_iterator<_Container> boost::algorithm::detail::decode_one<InputIterator,OutputIterator,bool(__cdecl *)(Iterator,Iterator)>(InputIterator &,InputIterator,OutputIterator,EndPred)' being compiled
1>          with
1>          [
1>              _Container=std::string,
1>              InputIterator=std::_String_const_iterator<char,std::char_traits<char>,std::allocator<char>>,
1>              OutputIterator=std::back_insert_iterator<std::string>,
1>              Iterator=std::_String_const_iterator<char,std::char_traits<char>,std::allocator<char>>,
1>              EndPred=bool (__cdecl *)(std::_String_const_iterator<char,std::char_traits<char>,std::allocator<char>>,std::_String_const_iterator<char,std::char_traits<char>,std::allocator<char>>)
1>          ]
1>          d:\development\libs\boost_1_52_0\boost/algorithm/hex.hpp(237) : see reference to function template instantiation 'OutputIterator boost::algorithm::unhex<std::_String_const_iterator<_Elem,_Traits,_Alloc>,OutputIterator>(InputIterator,InputIterator,OutputIterator)' being compiled
1>          with
1>          [
1>              OutputIterator=std::back_insert_iterator<std::string>,
1>              _Elem=char,
1>              _Traits=std::char_traits<char>,
1>              _Alloc=std::allocator<char>,
1>              InputIterator=std::_String_const_iterator<char,std::char_traits<char>,std::allocator<char>>
1>          ]
1>          d:\development\libs\boost_1_52_0\boost/algorithm/hex.hpp(263) : see reference to function template instantiation 'OutputIterator boost::algorithm::unhex<String,std::back_insert_iterator<_Container>>(const Range &,OutputIterator)' being compiled
1>          with
1>          [
1>              OutputIterator=std::back_insert_iterator<std::string>,
1>              String=std::string,
1>              _Container=std::string,
1>              Range=std::string
1>          ]
1>          unhex_bug.cpp(10) : see reference to function template instantiation 'String boost::algorithm::unhex<std::string>(const String &)' being compiled
1>          with
1>          [
1>              String=std::string
1>          ]
}}}

",Bugs,new,To Be Determined,algorithm,Boost 1.52.0,Problem,,unhex,