// ------------------------------------------------------------
 //   for.cpp     for while do loops and break
 // ------------------------------------------------------------
#include <iostream.h>        // Stream library
  void nl(int k = 1)
	 { for (int j = 0; j < k; j++) cout << "\n"; }
// -------------------------------------------------
  void main ()
  {
	int i,k;

	for (i = 0; i < 10; i++) k = i;
	cout << "i = " << i << "   k = " << k; nl(2);

	i = 0;
	while (i < 5)
	 {cout << i << " "; i++; }
	nl();

	i = 0;
	while (i < 5)
	 {cout << i << " "; i++; if (i == 3) break; }
	cout << "\n";

	i = 0;
	do { cout << i << " ";
		  if (i == 3) { cout << "wow"; break; }
		  i++;  }
	while (i < 5);
	nl();

	for (int j = 1; j < 10; j *= 2) cout << j << " "; // j global
	nl();
	cout << " j = " << j;

	// int j = 3; // WRONG  j already declared in loop
 }
// ---------------------------------------------------------
/* output

i = 10   k = 9

0 1 2 3 4
0 1 2
0 1 2 3 wow
1 2 4 8
 j = 16

*/