Re: [Boost-users] boost::regex_search upgrade from 1_36 to 1_45

Subject: Re: [Boost-users] boost::regex_search upgrade from 1_36 to 1_45
From: John Maddock (boost.regex_at_[hidden])
Date: 2010-12-15 05:28:27

> I have upgraded my boost to 1_45 (it was 1_36) and since then I have an
> error on boost::regex_search

What error? Compiler?

> here is the code
>
>  std::string regexp = "\\^:\\([^;^]*\\);\\([^;^]*\\);\\([^^]*\\)\\^:";
>  boost::regex expression(
>    regexp.c_str()
>    , boost::regex::basic|boost::regex::icase
>    );
>
>  std::string::const_iterator it_prev = str.begin();
>  std::string::const_iterator it_end = str.end();
>  std::string tmp;
>  while (boost::regex_search(it_prev, what, expression))

OK, *if* std::string iterator happens to be a const char* then this will 
work, otherwise it won't, suggest you use:

boost::smatch what;
while (boost::regex_search(str, what, expression))
{ //etc

My guess is you upgraded compiler at the same time as updating Boost? 
Basically your old code compiled "by accident"...

HTH, John.