#include <pv/prop/enum.h>
#include <pv/prop/int.h>
-using namespace boost;
-using namespace std;
+using boost::bind;
+using boost::function;
+using boost::optional;
+using boost::shared_ptr;
+using std::make_pair;
+using std::pair;
+using std::string;
+using std::vector;
namespace pv {
namespace prop {