$ grep -FR "using namespace std;" . ./core/primitives/impl/primitives.ipp: using namespace std; ./core/primitives/impl/primitives.ipp: using namespace std; ./core/primitives/impl/primitives.ipp: using namespace std; ./core/primitives/impl/primitives.ipp: using namespace std; ./core/primitives/impl/primitives.ipp: using namespace std; ./core/primitives/impl/primitives.ipp: using namespace std; ./core/primitives/impl/primitives.ipp: using namespace std; ./core/primitives/impl/primitives.ipp: using namespace std; ./core/primitives/impl/primitives.ipp: using namespace std; ./core/primitives/impl/primitives.ipp: using namespace std; ./core/primitives/impl/primitives.ipp: using namespace std; ./core/primitives/impl/primitives.ipp: using namespace std; ./core/primitives/impl/primitives.ipp: using namespace std; ./core/primitives/impl/primitives.ipp: using namespace std; ./core/primitives/impl/primitives.ipp: using namespace std; ./core/primitives/impl/primitives.ipp: using namespace std; ./core/primitives/impl/primitives.ipp: using namespace std; ./core/primitives/impl/primitives.ipp: using namespace std; ./core/primitives/impl/primitives.ipp: using namespace std; ./core/primitives/impl/primitives.ipp: using namespace std; ./core/primitives/impl/primitives.ipp: using namespace std; ./core/primitives/impl/primitives.ipp: using namespace std; ./core/primitives/impl/primitives.ipp: using namespace std; ./core/primitives/impl/primitives.ipp: using namespace std; ./core/primitives/impl/primitives.ipp: using namespace std; ./core/primitives/impl/primitives.ipp: using namespace std; ./fusion/sequence/detail/manip.hpp: using namespace std; ./iterator/impl/file_iterator.ipp:using namespace std; ./phoenix/closures.hpp: using namespace std;