Hello,

 

I am having an issue using the regex library.  I am developing in VC7 and this issue occurs with both Boost 1.33.0 and 1.33.1.  I have recently tried to start retrieving capture information in the regex matches by using the match_result and sub_match classes.  In order to use these classes, the compile flag BOOST_REGEX_MATCH_EXTRA is required to be turned on (enabled in user.hpp).  With the library is built with this flag on, I will get the following trap when the method calling regex_match() returns.

 

An unhandled exception of type 'System.NullReferenceException' occurred in tg12.exe

 

Additional information: Object reference not set to an instance of an object

 

This exception appears to occur in the cleanup logic of the ~match_results() destructor.  I have yet to make any changes to the code to use the match_results object.  In other words, the code I am using worked previously without the BOOST_REGEX_MATCH_EXTRA flag enabled.  Are there any compiler options required?

 

The stack trace is below. 

 

Thanks, Marty

 

 

 

>            DtmfGrammarManager.dll!std::vector<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator>,std::allocator<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator> > >::_Tidy()  Line 797 + 0x3 C++

             DtmfGrammarManager.dll!std::vector<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator>,std::allocator<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator> > >::~vector<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator>,std::allocator<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator> > >()  Line 389         C++

             DtmfGrammarManager.dll!std::vector<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator>,std::allocator<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator> > >::`scalar deleting destructor'()  + 0xf         C++

             DtmfGrammarManager.dll!boost::checked_delete<std::vector<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator>,std::allocator<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator> > > >(std::vector<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator>,std::allocator<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator> > > * x=0x00baadf0)  Line 34 + 0x1c          C++

             DtmfGrammarManager.dll!boost::scoped_ptr<std::vector<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator>,std::allocator<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator> > > >::~scoped_ptr<std::vector<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator>,std::allocator<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator> > > >()  Line 77 + 0xb          C++

            DtmfGrammarManager.dll!boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator>::~sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator>()  + 0x12    C++

            DtmfGrammarManager.dll!boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator>::`scalar deleting destructor'()  + 0xf    C++

             DtmfGrammarManager.dll!std::_Destroy<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator> >(boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator> * _Ptr=0x008d8428)  Line 50          C++

             DtmfGrammarManager.dll!std::allocator<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator> >::destroy(boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator> * _Ptr=0x008d8428)  Line 152 + 0x9          C++

             DtmfGrammarManager.dll!std::_Destroy_range<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator>,std::allocator<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator> > >(boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator> * _First=0x008d8428, boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator> * _Last=0x008d8988, std::allocator<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator> > & _Al={...}, std::_Nonscalar_ptr_iterator_tag __formal={...})  Line 226 + 0xc      C++

             DtmfGrammarManager.dll!std::_Destroy_range<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator>,std::allocator<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator> > >(boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator> * _First=0x008d8428, boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator> * _Last=0x008d8988, std::allocator<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator> > & _Al={...})  Line 217 + 0x28      C++

             DtmfGrammarManager.dll!std::vector<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator>,std::allocator<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator> > >::_Destroy(boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator> * _First=0x008d8428, boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator> * _Last=0x008d8988)  Line 787 + 0x11 C++

             DtmfGrammarManager.dll!std::vector<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator>,std::allocator<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator> > >::_Tidy()  Line 795           C++

             DtmfGrammarManager.dll!std::vector<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator>,std::allocator<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator> > >::~vector<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator>,std::allocator<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator> > >()  Line 389         C++

            DtmfGrammarManager.dll!boost::match_results<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator,std::allocator<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator> > >::~match_results<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator,std::allocator<boost::sub_match<std::basic_string<char,std::char_traits<char>,std::allocator<char> >::const_iterator> > >()  Line 74 + 0x3d           C++

            DtmfGrammarManager.dll!CDtmfGrammar_custom::check(const std::basic_string<char,std::char_traits<char>,std::allocator<char> > & inputData={...}, const std::basic_string<char,std::char_traits<char>,std::allocator<char> > & currentInput={...}, std::basic_string<char,std::char_traits<char>,std::allocator<char> > * pResultValue=0x0012ea9c, const std::basic_string<char,std::char_traits<char>,std::allocator<char> > & termcharArg={...})  Line 949 + 0x19      C++

            DtmfGrammarManager.dll!CDtmfGrammarManager::inputUpdate(const char * utterancePortionArg=0x00406e2c)  Line 200 + 0x3b           C++

            mscorwks.dll!7925de73()        

            tg12.exe!feedInput(char* iArg = 0x00406e2c, char* termcharArg = 0x00406e28) Line 22 + 0x1e bytes            C++

            tg12.exe!main(__int32 argc = 1, char** argv = 0x008d8120) Line 309 + 0x10 bytes    C++

            tg12.exe!mainCRTStartup()  Line 398 + 0xe     C

 

Marty Eaves

STAFF SOFTWARE ENGINEER
CALL PROCESSING & MEDIA SERVICES

RESEARCH AND DEVELOPMENT
INTERVOICE, INC.


P: (972) 454-8348
marty.eaves@intervoice.com

Intervoice: Connecting People and Information.

 


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