Using std Namespace

Question

There seem to be different views on using \'using\' with respect to the std namespace.

Some say use \' using namespace std\', other say don\'t but rathe

Answer 1

What are the pros and cons of each

The only reason to leave off the std:: is that you could, in theory, reimplement all the STL functions yourself. Then your functions could be switched from using std::vector to my::vector without changing the code.