Hi, The following program produces a compiler error on CodeWarrior 9.4 (see error messages at end): #include <boost/noncopyable.hpp> #include <boost/type_traits.hpp> int main() { bool b = boost::is_pointer<boost::noncopyable>::value; } If I change this to: #include <boost/noncopyable.hpp> #include <msl_utility> int main() { bool b = Metrowerks::is_pointer<boost::noncopyable>::value; } everything is fine. What's up? Jonathan --------------------------- Error : illegal access from 'boost::noncopyable_::noncopyable' to protected/private member 'boost::noncopyable_::noncopyable::noncopyable(const boost::noncopyable_::noncopyable &)' (point of instantiation: 'main()') (instantiating: 'boost::is_pointer<boost::noncopyable_::noncopyable>') (instantiating: 'boost::detail::is_pointer_impl<boost::noncopyable_::noncopyable>') (instantiating: 'boost::is_member_pointer<boost::noncopyable_::noncopyable>') (instantiating: 'boost::is_member_function_pointer<boost::noncopyable_::noncopyable>') (instantiating: 'boost::detail::is_member_function_pointer_impl<boost::noncopyable_::noncopyable
') (instantiating: 'boost::detail::is_mem_fun_pointer_select<false>::result_<boost::noncopyable_::n oncopyable>') is_member_function_pointer.hpp line 70 ));