Inclusion of the file named iomanip

Program code begins in Listing 1 with three compiler directives. 

#include <iostream>
#include <iomanip>
using namespace std;

Listing 1

Only one compiler directives is new to this lesson.  It is shown in boldface. 

This directive specifies that the contents of the file named iomanip is to be inserted into the source code prior to attempting to compile the program.