[Boost-users] [regex] "EXC_BAD_ACCESS" when iterating over smatch captures

From: Christopher Hart (hartct_at_[hidden])
Date: 2006-05-22 21:52:59

All:

I'm trying to run the captures example included in the Boost.Regex
documentation.  When running the captures example verbatim, I get:
"Program received signal:  "EXC_BAD_ACCESS"."

This is happening on Mac OS X 10.4.6 (Intel) with Boost 1.33.1.  This
problem seems to be related to the definition of
BOOST_REGEX_MATCH_EXTRA - if I don't use captures and leave the macro
undefined, other regex functions work fine.

>From gdb:

(gdb) backtrace
#0  0x00003ad4 in boost::sub_match<__gnu_cxx::__normal_iterator<char
const*, std::string> >::str ()
#1  0x00003b3a in boost::operator<< <char, std::char_traits<char>,
__gnu_cxx::__normal_iterator<char const*, std::string> > ()
#2  0x00001ff1 in print_captures ()
#3  0x000021e6 in main ()

The instruction that caused the error:

0x00003ad4  <+0068>  movsbl (%eax),%eax

I'm way out of my depth on this one.  Does anyone have any thoughts on
what to try?  Has anyone been able to use captures on an Intel Mac
system, or could this be a platform specific issue?

Thanks,
Chris