Re: [Boost-users] Unable to work out a Composite predicate.

From: Nat Goodspeed (nat.goodspeed_at_[hidden])
Date: 2007-08-25 11:34:38

At 07:07 AM 8/25/2007, gast128 wrote:

> > remove_copy_if ( myEvents.begin(), myEvents.end(),
> >    back_inserter(newEvents),
> >    (boost::bind(&Event::GetEventType, _1) == NotesEventType_New)
> >    && (boost::bind(&Event::GetEventID, _1) == 1000 )  );
>
>maybe this works:
>
>const std::vector<Event> v;
>std::vector<Event>       vOut;
>
>std::remove_copy_if(v.begin(), v.end(),
>                     back_inserter(vOut),
>                     boost::bind(std::logical_and<bool>(),
>                                (boost::bind(&Event::GetEventType, _1) == 0),
>                                (boost::bind(&Event::GetEventID, _1) == 1)));

   Alternatively, using boost::lambda::bind rather than boost::bind 
might permit you to use your original && syntax. (I haven't tried, though.)