Re: [Boost-bugs] [Boost C++ Libraries] #4123: smatches contains wrong matches, access changes content

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #4123: smatches contains wrong matches, access changes content
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-04-20 17:54:44

#4123: smatches contains wrong matches, access changes content
--------------------------------------+-------------------------------------
  Reporter:  g_sauthoff@…             |       Owner:  johnmaddock
      Type:  Bugs                     |      Status:  closed     
 Milestone:  Boost 1.43.0             |   Component:  regex      
   Version:  Boost Development Trunk  |    Severity:  Problem    
Resolution:  invalid                  |    Keywords:             
--------------------------------------+-------------------------------------
Changes (by johnmaddock):

  * status:  new => closed
  * resolution:  => invalid

Comment:

 There is a bug in your code: you are passing a ''temporary'' std::string
 object to regex_search, so after the call the match_results object
 contains invalidated iterators (iterators into an object that has already
 been destroyed) - leading to garbage output.

 HTH, John.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4123#comment:1>
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