Hi all,

Is there something like -- functional::identity, functional::plus (not std::plus<T>), functional::assign...etc -- in Boost?
I know I can use Phoenix _1, _1 + _2, _1 = _2..., but I'd expect something more basic.

Sometimes I just need something like that but not willing to have all the ET things...
Maybe they're just provided within Phoenix or Proto?


Thanks for any help.