Multiple aliases for a namespace? [duplicate]

Question

Is it possible to have a namespace that has all the declarations of more than one other namespace? Like this:

namespace std {...}; namespace glm {...};  namespace mynamespace = std; //mynamespace is an alias for std namespace mynamespace += glm; //mynamespace will hold glm functions as well. 

Answer 1

Sure

namespace mynamespace {    using namespace std;    using namespace glm; } 

Answer 2

You can use using to achieve this:

namespace mynamespace {     using namespace std;     using namespace glm; }