If you introduce a friend within a class in the global namespace, the friend is injected globally

Question

You can inject a friend declaration into a namespace by declaring it within an enclosed class:

namespace Me {
class Us {
friend void you();
};
}

Now the function you( ) is a member of the namespace Me. If you introduce a friend within a class in the global namespace, the friend is injected globally.

Can someone explain with an example what is meaning of above lines.

You should explain what it is you don't understand. – D Drmmr Oct 31 '14 at 12:40 — D Drmmr, Oct 31 '14 at 12:40

score 1 · Answer 1 · answered Oct 31 '14 at 11:10

You can inject a friend declaration into a namespace by declaring it within an enclosed class:

namespace Me {
class Us {
friend void you();
};
}

Now the function you( ) is a member of the namespace Me. If you introduce a friend within a class in the global namespace, the friend is injected globally.

If you introduce a friend within a class in the global namespace, the friend is injected globally

1 Answers1