[Boost-bugs] [Boost C++ Libraries] #2535: Boost.Regex not compatible with gcc's align-double at optimization level 3

Subject: [Boost-bugs] [Boost C++ Libraries] #2535: Boost.Regex not compatible with gcc's align-double at optimization level 3
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2008-11-25 17:57:33

#2535: Boost.Regex not compatible with gcc's align-double at optimization level 3
--------------------------------+-------------------------------------------
 Reporter:  Andrew Troschinetz  |       Owner:  johnmaddock
     Type:  Bugs                |      Status:  new        
Milestone:  Boost 1.38.0        |   Component:  regex      
  Version:  Boost 1.37.0        |    Severity:  Problem    
 Keywords:                      |  
--------------------------------+-------------------------------------------
 When compiling even the following code:

  #include <boost/regex.h>
  int main { boost::regex ("test"); return 0; }

 With the flags
  -m32 -malign-double -O3
 on gcc, a segfault occurs. Here is a sample excerpt of what gdb shows:

 0x08066beb in boost::re_detail::basic_regex_parser<char,
 boost::regex_traits<char, boost::cpp_regex_traits<char> >
 >::parse_extended (this=0xffde311c)
         at /usr/include/boost/regex/v4/basic_regex_parser.hpp:235
 235             switch(this->m_traits.syntax_type(*m_position))
 (gdb) print m_position
 $1 = 0x0
 (gdb) bt
 #0      0x08066beb in boost::re_detail::basic_regex_parser<char,
 boost::regex_traits<char, boost::cpp_regex_traits<char> >
 >::parse_extended
         at /usr/include/boost/regex/v4/basic_regex_parser.hpp:235
 #1      0xf7f9e364 in boost ::re_detail::basic_regex_parser<char,
 boost::regex_traits<char, boost::cpp_regex_traits<char> > >::parse ()
         from /usr/lib/libboost_regex.so.2
 #2      0xf7fa0eba in boost::basic_regex<char, boost::regex_traits<char,
 boost::cpp_regex_traits<char> > >::do_assign () from
 /usr/lib/libboost_regex.so.2

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/2535>
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