Hi, I have a problem with Boost.Bind placeholders. Namely, once I include the <boost/bind.hpp> it automatically brings placeholders _1, _2, .. into scope and I cannot use placeholders from other libraries like Spirit.Qi any more. I.e. I can but I need to qualify them like qi::_1, qi::_2, which is annoying. I include <boost/bind.hpp> in a precompiled header, so I have no option of not including it. Boost.Bind could define them in namespace boost::bind_placeholders and we could control their visibility with namespace using directive. This is what Spirit does, and it is cute. I guess I would not be able to convince anyone that Bind should do the same. But would it be possible to define placeholders _1, _2, ... as something more generic in Boost, unrelated to any particular library? Then boost::bind, would treat it as its own placeholders, Spirit semantic actions would treat them as its own placeholders, but they would be exactly same placeholders. Regards, &rzej