Re: [Boost-users] Need help with Errors in boost MPL tutorials

There are far more than just two placeholders in Boost. AFAIK Phoenix, Lambda and Bind come with their own. The mpl placeholder is different though: It is a placeholder for a type (it's a meta-programming library after all) and not for a value. Try to write a MPL lambda, that might clear up some of the confusion. -- Philipp Moeller, GeometryFactory

That clears a lot of confusion from me. So again, mpl::lambda is also different from boost::lambda is that right (and also the lambda from c++11x) ? These are quite new terms for me. Would be great if someone could give me some references why they are different and should be implemented separately.