openSUSE/libzypp — comment on commit 717abca3d2d6eb6f573140f1d3790bb9a3aab71a
File: zypp/base/WatchPath.cc line 22
By mlandres:

Try to avoid using whole namespaces.
There are zypp::function and std::function, zypp::bind and std::bind, zypp:ref and std::ref, .. and the boost ones as well. Being more explicit about the types uses is not thet bad. If writing std::string actually kills you, say 'using std::string;'