TITLE: Discarding characters using cin


PROBLEM: rcf@tunica.eel.ufl.edu (Robert Charles Fellenz)

If the following statements are in my program, how do I flush the
the "cin" buffer if a user inputs more than ten integers (separated
by spaces) for the loop with the "cin" statement.

[ Sorry, I missed the original code. But it is not needed to 
  understand the response below. -adc ]



RESPONSE: steve@taumet.com (Steve Clamage), 25 Sep 1992

Use the function
	istream::ignore(int count, int delim=EOF)

It extracts and discards characters until
 - 'count' characters are extracted,
 - the character 'delim' is encountered,
 - the end of file is reached,
whichever occurs first.  If 'delim' is EOF (the default), exactly
'count' characters will be discarded (unless end of file is reached).

To discard the remainder of a line, use
	cin.ignore(MANY, '\n');
where 'MANY' is INT_MAX is from <limits.h>, or is some positive number
that fits in an int and is bigger than the length of any line.