namespace ll = boost::lambda; ... = std::find_if(..., ll::bind(&Timeslice::contains, ll::bind(&LightningSlice::timeslice, ll::_1), time_));
Yes, it's ugly. Unfortunately, you can't really improve on it.
Sebastian _______________________________________________
Thanks, I tried this suggestion: #include <boost/lambda/bind.hpp> namespace ll = boost::lambda; LightningQueue::const_iterator l = std::find_if( m_lightnings.begin(), m_lightnings.end(), bind( &boost::posix_time::time_period::contains, ll::bind( &LightningSlice::timeslice, ll::_1 ), time_ ) ); But then I got this error message: ../LightningIndex.cpp: In member function 'weather::LightningSlice weather::LightningIndex::getLightningSlice(boost::posix_time::ptime)': ../LightningIndex.cpp:40: error: no matching function for call to 'bind(<unresolved overloaded function type>, const boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<2, boost::lambda::function_action<2, boost::lambda::detail::unspecified> >, boost::tuples::tuple<const boost::posix_time::time_period& (weather::LightningSlice::* const)()const, const boost::lambda::lambda_functor<boost::lambda::placeholder<1> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >, boost::posix_time::ptime&)' This is even more confusion than the first error message. Greetings, Sven