Don't place "using namespace std;", "using std::vector;" or anything like this
into public library header files. Doing so would force the import of all or
parts of the "std" namespace upon all users of the library, even if they don't
Don't place "using namespace std;", "using std::vector;" or anything like this
into public library header files. Doing so would force the import of all or
parts of the "std" namespace upon all users of the library, even if they don't