Re: [Boost-users] Boost.Regex 1.39.0: Crash in boost::sub_match::str()

Hello Anthony

Regex does not keep a copy of the string, but instead uses the passed in string. The result of the filename method is going out of scope immediately after the regex_match call, and the memory in match.str() is invalid.

Thanks a lot. I did not realize that the iterators have to survive the call but it is obvious now. Regards, Peter.