Re: [Boost-bugs] [Boost C++ Libraries] #8261: lexical_cast<unsigned> returns unexpected result when using with split_iterator<std::wstring::iterator>

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #8261: lexical_cast<unsigned> returns unexpected result when using with split_iterator<std::wstring::iterator>
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2013-03-29 09:44:38

#8261: lexical_cast<unsigned> returns unexpected result when using with
split_iterator<std::wstring::iterator>
---------------------------------------+------------------------------------
  Reporter:  s.a.moreno.a.s@…          |       Owner:  apolukhin   
      Type:  Bugs                      |      Status:  new         
 Milestone:  To Be Determined          |   Component:  lexical_cast
   Version:  Boost 1.52.0              |    Severity:  Problem     
Resolution:                            |    Keywords:              
---------------------------------------+------------------------------------

Comment (by apolukhin):

 This is a known problem, which is very hard to solve in s good, portable
 and generic way.

 As a temporary workaround you may use the following solution:
 {{{
 #include <boost/algorithm/string.hpp>
 #include <boost/lexical_cast.hpp>

 int main() {
     const wchar_t wstr[] = L"20.20";
     typedef boost::split_iterator<const wchar_t*> wsplit_iter_t;
     wsplit_iter_t wdot_iter = boost::make_split_iterator( wstr,
 boost::first_finder(L"."));
     std::cout << boost::lexical_cast<unsigned>(*wdot_iter++)
               << '.'
               << boost::lexical_cast<unsigned>(*wdot_iter++);
 }
 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/8261#comment:1>
Boost C++ Libraries <http://www.boost.org/>
Boost provides free peer-reviewed portable C++ source libraries.