Re: [Boost-users] using bind with find_if

I just have to add:

   typedef bool result_type;

to my functor, or call boost::bind<bool>.

Or just define a simple function instead of the functor (which is stateless anyway). By the way, if you've got a lot of tasks where you extract elements according to some criteria, it's worth taking a look at Boost.MultiIndex - it's quite powerful tool for both trivial and complicated cases.