Re: [Boost-bugs] [Boost C++ Libraries] #7606: u32regex causes bus error

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #7606: u32regex causes bus error
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2012-11-28 18:22:42

#7606: u32regex causes bus error
-----------------------------------------+----------------------------------
  Reporter:  a.sanders@…                 |       Owner:  johnmaddock
      Type:  Bugs                        |      Status:  new        
 Milestone:  To Be Determined            |   Component:  regex      
   Version:  Boost 1.51.0                |    Severity:  Problem    
Resolution:                              |    Keywords:             
-----------------------------------------+----------------------------------

Comment (by johnmaddock):

 Thanks for the stack trace, unfortunately that makes even less sense now
 :-(

 Can you set a breakpoint (basic_regex.cpp:399) inside:

 {{{
    template <class InputIterator>
    basic_regex(InputIterator arg_first, InputIterator arg_last, flag_type
 f = regex_constants::normal)
    {
       typedef typename traits::string_type seq_type;
       seq_type a(arg_first, arg_last);
       if(a.size())
          assign(static_cast<const charT*>(&*a.begin()), static_cast<const
 charT*>(&*a.begin() + a.size()), f);
       else
          assign(static_cast<const charT*>(0), static_cast<const
 charT*>(0), f);
    }
 }}}

 What are the contents of "a" after construction?

 Any chance that your code is compiled using a compiler code page that
 results in the input string not being valid ASCII/UTF8?

 Thanks, John.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/7606#comment:6>
Boost C++ Libraries <http://www.boost.org/>
Boost provides free peer-reviewed portable C++ source libraries.