Extract and discard characters.
  Extracts characters from input stream and discards them.
  Extraction ends when n characters have been discarded or when delim is found, whichever comes first. In this last case delim is also extracted.

Parameters.

n

Maximum number of characters to be extracted and ignored.
This is an integer value of type streamsize

delim

Delimiter character.

Return Value.
  The function returns *this

Example.

// istream ignore
#include <iostream>
using namespace std;

int main () {
  char first, last;

  cout << "Enter your first and last names: ";

  first=cin.get();
  cin.ignore(256,' ');

  last=cin.get();

  cout << "Your initials are " << first << last;

  return 0;
}

Basic template member declarations ( basic_istream<charT,traits> ):

typedef traits::int_type int_type; basic_istream& ignore (streamsize n = 1, int_type delim = traits::eof() );

See also.
  peek, get, getline, read, readsome
  istream class