John Maddock wrote:
Failing that, if you can run it under gdb and see what traps that might suggest something.
And here is the stack trace when running the program on gdb: (gdb) run Starting program: /vol2/boost/src/boost-RC_1_34_0/bin.v2/libs/regex/test/regex_regress_threaded.test/gcc-4_0_3_tru64/debug/threading-multi/regex_regress_threaded terminate called after throwing an instance of 'boost::regex_error' what(): Unmatched ( or \( Program received signal SIGABRT, Aborted. 0x000003ff805c1ac8 in __nxm_thread_kill () from /usr/shlib/libpthread.so (gdb) where #0 0x000003ff805c1ac8 in __nxm_thread_kill () from /usr/shlib/libpthread.so #1 0x000003ff805ba124 in pthread_kill () from /usr/shlib/libpthread.so #2 0x000003ff80140238 in tis_raise () from /usr/shlib/libc.so #3 0x000003ff801d21fc in abort () from /usr/shlib/libc.so #4 0x00000300000f8c88 in __gnu_cxx::__verbose_terminate_handler () at /home/schoepf/local/src/gcc-4.0.3/libstdc++-v3/libsupc++/vterminate.cc:97 #5 0x00000300000f5950 in __cxxabiv1::__terminate (handler=0x3ff801adcd0 <raise>) at /home/schoepf/local/src/gcc-4.0.3/libstdc++-v3/libsupc++/eh_terminate.cc:43 #6 0x00000300000f59cc in std::terminate () at /home/schoepf/local/src/gcc-4.0.3/libstdc++-v3/libsupc++/eh_terminate.cc:53 #7 0x00000300000f5b5c in __cxa_throw (obj=0x0, tinfo=0x6, dest=0x1) at /home/schoepf/local/src/gcc-4.0.3/libstdc++-v3/libsupc++/eh_throw.cc:77 #8 0x000003ffbff45dd8 in boost::throw_exception<boost::regex_error> (e=@0x2000141b9b8) at ../../../boost/throw_exception.hpp:39 #9 0x000003ffbff45e2c in boost::regex_error::raise (this=0x1201732ec) at ../../../libs/regex/src/../src/regex.cpp:76 #10 0x00000001201732ec in boost::re_detail::basic_regex_parser<char, boost::cpp_regex_traits<char> >::fail (this=0x1200f61c8, error_code=21084752, position=5369995776) at ../../../boost/regex/v4/basic_regex_parser.hpp:160 #11 0x0000000120174c80 in boost::re_detail::basic_regex_parser<char, boost::cpp_regex_traits<char> >::parse_open_paren (this=0x2000141bc01) at ../../../boost/regex/v4/basic_regex_parser.hpp:335 #12 0x00000001201a85a0 in boost::re_detail::basic_regex_parser<char, boost::cpp_regex_traits<char> >::parse_extended (this=0x2000141bc08) at ../../../boost/regex/v4/basic_regex_parser.hpp:238 #13 0x00000001200f1f28 in boost::re_detail::basic_regex_parser<char, boost::cpp_regex_traits<char> >::parse_all (this=0x2000141bb78) at ../../../boost/regex/v4/basic_regex_parser.hpp:173 #14 0x0000000120191338 in boost::re_detail::basic_regex_parser<char, boost::cpp_regex_traits<char> >::parse (this=0x0, p1=0x140122180 "@¡\023@\001", p2=0x12019178c "ø\037º'd\207½#P", l_flags=1074929976) at ../../../boost/regex/v4/basic_regex_parser.hpp:125 #15 0x00000001201914b4 in boost::re_detail::basic_regex_implementation<char, boost::cpp_regex_traits<char> >::assign (this=0x12019192c, arg_first=0x2000141bd20 "`\035\031 \001", arg_last=0x2000141be80 "\200f\021@\001", f=1074929976) at ../../../boost/regex/v4/basic_regex.hpp:96 #16 0x000000012019178c in boost::basic_regex<char, boost::cpp_regex_traits<char> >::do_assign (this=0x140122139, p1=0x100000000 <Address 0x100000000 out of bounds>, p2=0x120191d60 "ø\037º'\220\201½#£\001àÃ`", f=1074633374) at ../../../boost/regex/v4/basic_regex.hpp:524 #17 0x0000000120191870 in boost::basic_regex<char, boost::cpp_regex_traits<char> >::assign (this=0x2000141be80, p1=0x140122138 "(", p2=0x140122139 "", f=0) at ../../../boost/regex/v4/basic_regex.hpp:255 #18 0x000000012019192c in boost::basic_regex<char, boost::cpp_regex_traits<char> >::assign<std::char_traits<char>, std::allocator<char> > ( this=0x20000000000, s=@0x8, f=538531772) at ../../../boost/regex/v4/basic_regex.hpp:293 #19 0x0000000120191d60 in test<char, boost::cpp_regex_traits<char> > (r=@0x300000cbf28) at regress/test_not_regex.hpp:78 #20 0x00000001201957bc in do_test<char, test_invalid_regex_tag> (c=@0x3, tag=@0x3) at regress/test.hpp:72 #21 0x0000000120195db8 in test (c=@0x1200c6ef0, tag=@0x2000141bef0) at regress/main.cpp:167 #22 0x00000001200c6ef0 in basic_tests () at regress/basic_tests.cpp:44 #23 0x00000001200dc794 in run_tests () at regress/main.cpp:38 #24 0x00000001200ea758 in boost::detail::function::void_function_invoker0<void (*)(), void>::invoke (function_ptr=@0x2000141dbc0) at ../../../boost/function/function_template.hpp:104 #25 0x000003ffbffefd58 in boost::function0<void, std::allocator<boost::function_base> >::operator() (this=0x3ff805cf53c) at ../../../boost/function/function_template.hpp:682 #26 0x000003ffbfff0688 in thread_proxy (param=0x2000141f440) at ../../../libs/thread/src/thread.cpp:113 #27 0x000003ff805cf53c in __thdBase () from /usr/shlib/libpthread.so #28 0x0000000000000000 in ?? () [...] warning: Hit heuristic-fence-post without finding warning: enclosing function for address 0x800000000000000 This warning occurs if you are debugging a function without any symbols (for example, in a stripped executable). In that case, you may wish to increase the size of the search with the `set heuristic-fence-post' command.