Re: [Boost-bugs] [Boost C++ Libraries] #1508: text_map_binary_archive failure

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #1508: text_map_binary_archive failure
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2007-12-23 01:36:51

#1508: text_map_binary_archive  failure
--------------------------------------------+-------------------------------
  Reporter:  jrp at dial dot pipex dot com  |       Owner:  ramey        
      Type:  Bugs                           |      Status:  reopened     
 Milestone:  Boost 1.35.0                   |   Component:  serialization
   Version:  Boost Development Trunk        |    Severity:  Problem      
Resolution:                                 |    Keywords:               
--------------------------------------------+-------------------------------
Changes (by Richard Webb <richard.webb_at_[hidden]>):

  * status:  closed => reopened
  * resolution:  wontfix =>

Comment:

 This isn't simply a test artifact - you get the same error with the simple
 program:

 {{{
 int _tmain(int argc, _TCHAR* argv[])
 {
         std::stringstream sss;
         boost::archive::text_oarchive oa(sss);

         std::string out;
         oa << out;

         std::string in;
         boost::archive::text_iarchive ia(sss);
         ia >> in;

         return 0;
 }
 }}}
 The same thing happens on both VC8(SP1) and VC9 (and both work fine if the
 initial string isn't empty).

 The problem with the

 {{{
 is.read(&(*s.begin()), size);
 }}}

 is that if size is 0 (and therefore s is empty) you end up dereferencing
 an 'invalid' iterator, which the debug iterators don't like you doing.

-- 
Ticket URL: <http://svn.boost.org/trac/boost/ticket/1508#comment:3>
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