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: 2014-02-01 15:46:29

#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 Troy Korjuslommi <troykor@…>):

 The attached patch is against boost 1.55.0's lexical_cast.hpp.

 This patch catches iterator_range objects and calls a version of
 lexical_cast specialized on the correct internal char type.

 The root cause is that the templates in the default lexical_cast function
 do not consider iterator_range objects. It is more efficient to catch all
 iterator_range objects in a specialized function.

 Another issue which might be of concern is that the member variables start
 and finish (start_ and finish_ would be a nice change) are pointers to
 char types. Using an iterator abstraction would be more generic. It looks
 like a big change at first peak, and its merits would have to evaluated
 too.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/8261#comment:2>
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