You have to #include as well as #include when you use a line of code such as cout

Question

You have to #include as well as #include when you use a line of code such as cout << setw(8)<< 123456 << endl; but not have to #include when you do the exact equivalent thing in cout.width(8); cout << 123456 << endl; Why is this?

Quizplus · Accepted Answer

The Answer of You have to #include as well as #include when you use a line of code such as cout << setw(8)<< 123456 << endl; but not have to #include when you do the exact equivalent thing in cout.width(8); cout << 123456 << endl; Why is this?

You Have to #Include ≪iomanip> as Well as #Include ≪iostream>