/* PROGRAM output formatting samples 
AUTHOR: Nan Zhao
FSU ID: nz08
COURSE INFORMATION: COP 3014
Recitation Number: 2 
 
SUMMARY 
Samples showing outpput formats. 

INPUT 
N/A

OUTPUT 
Sample outputs with different outpput formats. 

DATA STRUCTURES 
N/A

ASSUMPTIONS 
N/A

*/ 

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

using namespace std; 

int main()
{
	/************* variable declaration *************/
	int int_num_1 = 36123, 
		int_num_2 = -36123; 
	double num_1 = 100000000, 
		num_2 = 44.00, 
		num_3 = 3.141592653; 
	char ch = 'Q'; 
	const char BLANK = ' '; 
	const string FSU_NAME = "Florida State University"; 

	/************* executable codes *************/
	// Formatting output of integers
	cout << "====================================" << endl; 
	cout << "=== Formatting output of integer ===" << endl; 
	cout << "====================================" << endl << endl; 

	// the case without any output formatting
	cout << "===== No output formatting =====" << endl; 
	cout << "int_num_1 =" << int_num_1 << "and int_num_2 =" << int_num_2 << endl << endl; 

	// turn on setw (right-justified in default) 
	cout << "===== turn on setw: setw(10) =====" << endl; 
	cout << "int_num_1 =" << setw(10) << int_num_1 << "and int_num_2 =" << int_num_2 << endl << endl; 

	// flip to left-justified
	cout << "===== flip to left-justified =====" << endl; 
	cout << left; 
	cout << "int_num_1 =" << setw(10) << int_num_1 << "and int_num_2 =" << int_num_2 << endl << endl; 

	// switch back to right-justified
	cout << "===== switch back to right-justified =====" << endl; 
	cout << right; 
	cout << "int_num_1 =" << setw(10) << int_num_1 << "and int_num_2 =" << int_num_2 << endl << endl; 

	// setw is too small
	cout << "===== setw is too small: setw(3) =====" << endl; 
	cout << "int_num_1 =" << setw(1) << int_num_1 << "and int_num_2 =" << int_num_2 << endl << endl << endl; 

	// Formatting output of reals
	cout << "====================================" << endl; 
	cout << "=== Formatting output of double ===" << endl; 
	cout << "====================================" << endl << endl; 

	cout << setprecision(10) << "num_1 = " << num_1 << endl; 
	cout << fixed << setprecision(2); 
	cout << "num_2 = " << num_2 << endl; 
	cout.unsetf(ios::fixed); 
	cout << setprecision(10) << "num_3 = " << num_3 << endl; 
	cout << endl; 
	cout << setprecision(6); 

	// the case without any output formatting
	cout << "===== No output formatting =====" << endl; 
	cout << "num_1 = " << num_1 << endl; // scientific notation 
	cout << "num_2 = " << num_2 << endl; 
	cout << "num_3 = " << num_3 << endl; 
	cout << endl; 

	// precision setting
	cout << "===== setting precision (9) =====" << endl; 
	cout << setprecision(9); // precision setting (need: # include <iomanip>)
	cout << "num_1 = " << num_1 << endl; 
	cout << "num_2 = " << num_2 << endl; 
	cout << "num_3 = " << num_3 << endl; 
	cout << endl; 

	// turn off precision setting
	cout << "===== turn off precision setting (6) =====" << endl; 
	cout << setprecision(6); // turn off precision setting
	cout << "num_1 = " << num_1 << endl; 
	cout << "num_2 = " << num_2 << endl; 
	cout << "num_3 = " << num_3 << endl; 
	cout << endl; 

	// turn on showpoint
	cout << "===== turn on showpoint =====" << endl; 
	cout << showpoint; // turn on showpoint
	cout << "num_1 = " << num_1 << endl; 
	cout << "num_2 = " << num_2 << endl; 
	cout << "num_3 = " << num_3 << endl; 
	cout << endl; 

	// turn off showpoint
	cout << "===== turn off showpoint =====" << endl; 
	cout.unsetf(ios::showpoint); // turn off showpoint
	cout << "num_1 = " << num_1 << endl; 
	cout << "num_2 = " << num_2 << endl; 
	cout << "num_3 = " << num_3 << endl; 
	cout << endl; 

	// turn on fixed
	cout << "===== turn on fixed =====" << endl; 
	cout << fixed; // turn on fixed
	cout << "num_1 = " << num_1 << endl; 
	cout << "num_2 = " << num_2 << endl; 
	cout << "num_3 = " << num_3 << endl; 
	cout << endl; 

	// turn off fixed
	cout << "===== turn off fixed =====" << endl; 
	cout.unsetf(ios::fixed); // turn off fixed
	cout << "num_1 = " << num_1 << endl; 
	cout << "num_2 = " << num_2 << endl; 
	cout << "num_3 = " << num_3 << endl; 
	cout << endl << endl << endl; 

	// Formatting output of char
	cout << "====================================" << endl; 
	cout << "=== Formatting output of char ===" << endl; 
	cout << "====================================" << endl << endl; 

	// the case without any output formatting
	cout << "===== No output formatting =====" << endl; 
	cout << '*' << ch << '*' << endl << endl; 

	// turn on setw (right-justified in default) 
	cout << "===== turn on setw: setw(10) =====" << endl; 
	cout << setw(10) << BLANK << "(EOL)" << endl << endl << endl; 

	// Formatting output of strings
	cout << "====================================" << endl; 
	cout << "=== Formatting output of strings ===" << endl; 
	cout << "====================================" << endl << endl; 

	// the case without any output formatting
	cout << "===== No output formatting =====" << endl; 
	cout << FSU_NAME << " (" << "FSU" << ")" << endl << endl; 

	// turn on setw (right-justified in default) 
	cout << "===== turn on setw: setw(6) =====" << endl; 
	cout << FSU_NAME << " (" << setw(6) << "FSU" << ")" << endl << endl; 

	// flip to left-justified
	cout << "===== flip to left-justified =====" << endl; 
	cout << left; 
	cout << FSU_NAME << " (" << setw(6) << "FSU" << ")" << endl << endl; 

	// setw is too small
	cout << "===== setw is too small: setw(6) =====" << endl; 
	cout << setw(6) << FSU_NAME << " (" << "FSU" << ")" << endl << endl; 
	cout << endl << endl; 


	return(0); 
}