I'm trying to use boost-regex in my project that doesn't support exceptions. Thus, when constructing a regular expression with boost::regex expression(expr); and passig an invalid regular expression, my program crashes.
What can I do to make sure my regular expression is valid before passing it to exception-throwing methods like that one?
There is a no_except flag that can be passed the regex constructor/assign methods to disable throwing of exceptions: boost::regex e("bad**string", boost::regex_constants::perl | boost::regex_constants::no_except); if(e.empty()) { std::cout << "oops" << std::endl; } However, I notice that I removed all mention of this from the docs when I updated the interface to match the TR1 spec. It's non-the-less still supported however. John.