In the code snipped below ns2::my_class::foo member function has to explicitly take ns1::my_object, which is fine however, it is somewhat cumbersome when there are a lot of such places. The need to use the namespace arises from the use of the same name for the classes in different namespaces. I know that that’s basically what the namespaces are for but I’m wondering if there is a way to improve the design other than using prefixes?

#include <iostream>
using namespace std;

namespace ns1 {
    struct my_object {};

    struct my_class {
        virtual void foo(my_object *object) {}
    };
}

namespace ns2 {
    struct my_object {};

    struct my_class : public ns1::my_class {
        void foo(my_object *object) override {} // compile error
        void foo(ns1::my_object *object) override {} // OK
    };
}

int main() {
    return 0;
}