Re: [Boost-bugs] [Boost C++ Libraries] #1230: mbstate uninitialized

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #1230: mbstate uninitialized
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2007-11-26 09:43:20

#1230: mbstate uninitialized
-------------------------------------+--------------------------------------
  Reporter:  Jan-Erik.Dahlin_at_[hidden]  |       Owner:  bemandawes
      Type:  Bugs                    |      Status:  closed    
 Milestone:  Boost 1.35.0            |   Component:  filesystem
   Version:  Boost 1.34.1            |    Severity:  Problem   
Resolution:  fixed                   |    Keywords:            
-------------------------------------+--------------------------------------
Comment (by Jan-Erik.Dahlin_at_[hidden]):

 It '''needs''' to be initialized. As the name implies the mbstate tracks
 the state of a multibyte access, e.g. if the previous access or conversion
 only was a partial translation (this can happen if the previous read
 operation only got half the multibyte character and the other half comes
 in the current read).

 If we start with an uninitialized mbstate the current access can
 accidentally be performed as a continuation of a partial access. That will
 produce unexpected results.

-- 
Ticket URL: <http://svn.boost.org/trac/boost/ticket/1230#comment:3>
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