this is my own library named mylib.h
void set_col(int n);
void set_col(int n)
for(int i = 0; i < n; ++i)
in my try .cpp
cout <<"Hello ! World ! "<< endl;
OK, If I ran this program , you will see "Hello ! World !"
displayed at position 5. Like
Hello ! world !
But if I did the following , I will get compiled error
cout << set_col(5) << "Hello ! World !"<< endl;
how to change mylib.h to suit my need.
Thank you !