//------------------------------------------------
// File: width.cpp
// Author: D. Frey
//
// Section: 1234
// Project: none
// Description
//   This program shows the effect of the setw( )
// manipulator
//------------------------------------------------

#include <iostream>
#include <iomanip>
#include <string>

using namespace std;
int main ( )
{
   string name = "John Q. Public";
   int nameSize = name.size();
   int width;

   cout << "String Width Tests" << endl;
   cout << "------------------" << endl << endl;

   cout << "Using manipulator setw( )" << endl;
   cout << "-------------------------" << endl;

   // smaller than length of "name" << endl;   
   width = nameSize - 5;
   cout << "width = " << width << "  
   cout << "Name:" << setw( width ) << name << endl << endl;

   // exactly the same as length of "name" << endl;
   width = nameSize;
   cout << "width = " << width << "  
   cout << "Name:" << setw( width ) << name << endl << endl;

   // bigger than the length of the name" << endl;
   width = nameSize + 5;
   cout << "width = " << width << " 
   cout << "Name:" << setw( width ) << name << endl;

   // same test using cout.width()
   cout << endl;
   cout << "Using cout.width( )" << endl;
   cout << "-----------------------" << endl;

   // width too small??
   width = nameSize - 5;
   cout << "width = " << width << endl;
   cout << "Name:";
   cout.width( width );
   cout << name << endl;

   // width just right
   width = nameSize;
   cout << "width = " << width << endl;
   cout << "Name:";
   cout.width( width );
   cout << name << endl;

   // width too big
   width = nameSize + 5;
   cout << "width = " << width << endl;
   cout << "Name:";
   cout.width( width );
   cout << name << endl;

   cout << endl;

   // numeric width test
   cout << "Numeric width test" << endl;
   cout << "------------------" << endl;

   double PI = 3.141596;
   int age = 42;

   cout << "width not set (default = 6)" << endl;
   cout << "Age = " << age << endl;
   cout << "Pi  = " << PI << endl;

   cout << "width = 1" << endl;
   cout << "Age = " << setw( 1 ) << age << endl;
   cout << "Pi  = " << setw( 1 ) << PI << endl;

   cout << "width = 10" << endl;
   cout << "Age = " << setw( 10 ) << age << endl;
   cout << "Pi  = " << setw( 10 ) << PI << endl;

   return 0;
}