Re: [Boost-bugs] [Boost C++ Libraries] #1749: regex_match on filesystem iterator.leaf () leads to strange results in what[]

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #1749: regex_match on filesystem iterator.leaf () leads to strange results in what[]
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2008-04-04 12:54:12

#1749: regex_match on filesystem iterator.leaf () leads to strange results in
what[]
------------------------------------------+---------------------------------
  Reporter:  christopher.lang_at_[hidden]  |       Owner:  johnmaddock             
      Type:  Bugs                         |      Status:  closed                  
 Milestone:                               |   Component:  regex                   
   Version:                               |    Severity:  Problem                 
Resolution:  invalid                      |    Keywords:  filesystem path iterator
------------------------------------------+---------------------------------
Changes (by johnmaddock):

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

Comment:

 The problem here is that the leaf() function returns a *temporary string
 value*, so by the time that regex_match returns the string matched against
 has gone out of scope, and the iterators stored in match_results<> have
 all been invalidated.  Assigning the result of leaf() to a local string
 object before calling regex_match will fix this.

 HTH, John  Maddock.

-- 
Ticket URL: <http://svn.boost.org/trac/boost/ticket/1749#comment:1>
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