// John Bent's CS 110 Hand-out 14
// Spinning line
//
// This program for a do-nothing for loop to output a 
// spinning line to the screen.
// The loop consists of consecutive characters written on
// top of each other:  -, then \, then |, then /, back to -

#include<iostream.h>

int main()
{
	unsigned int LargeNumber = 555555;

	cout << endl << "  - "; // start the loop spinning

	for (int j = 0; j < 200; j ++) {
		for (unsigned int i = 0; i < LargeNumber; i++) ; // busy wait
		if (j%4==0) { 
			cout << "\b\b\\ "; 
			cout.flush(); 
		} // if1
		else if (j%4==1) { 
			cout << "\b\b| "; 
			cout.flush(); 
		} // if2
		else if (j%4==2) { 
			cout << "\b\b/ "; 
			cout.flush(); 
		} // if3
		else { 
			cout << "\b\b- "; 
			cout.flush(); 
		} // if4

	} // for

	cout << "\b\b* done." << endl; // put a '*' over the spinning loop

	return 1;
}