Program Of Putback Manipulator In C++

#include<iostream.h>

#include<conio.h>

#include<ctype.h>

main()

{

clrscr();

char ch;

cout<<"press f6 or ^z to exit=";

while(cin.get(ch))

{

cin.putback(toupper(ch));

cin.get(ch);

cout.put(ch);

}

getch();

}