I have probably a very easy question, which is if it is necessary any header in oder to be able to use a namespace created by myself. For example:
namespace test
{
int a = 2;
int b = 5;
}
Should I add any header here? The thing is that I am using Visual Studio 2010. With it I do not need add any header to use namespace, but I think Visual Studio adds automatically many headers, so maybe it adds a header which is necessary when using namespace.