// File: Buffer.cpp
// Demonstrate full vs. line buffering.
// Write a string to cout. 
// If run with output redirected, should appear twice!
// Try it any way without \n
// Try changing cout to cerr – Surprise! Need to use >&
//	to redirect. But, it still isn’t buffered
#include <sys/types.h>
#include <unistd.h>
#include <iostream>

using namespace std;

int main()
{cout << "ABCD\n" ;
 fork();
 cout.flush();
}