What are Other input operations ?

All of the following are illustrated using the standard input, but they work just the same on file streams.cin.get(char &ch)    Puts the next input character in the variable ch. Returns an integer value, which is zero if it encountered a problem (e.g. end of file). cin.getline(char *buffer, int length)    Reads characters into the string buffer, stopping when (a) it has read length-1 characters or (b) when it finds an end-of-line character ('\n') or the end of the file. Stores a null character ('\0') after the last character read. cin.read(char *buffer, int n)    Reads n bytes (or until the end of the file) from the stream into the buffer. cin.gcount()    Returns the number of characters read by a preceding get, getline, or read command. cin.ignore(int n)    Remove the next n characters (or until end of file) from the input stream, throwing them away into the Great Bit Bucket. cin.putback(char ch)    Puts character ch back onto the stream. Bad things will happen if this character is not the one most recently extracted from the stream. These operations all return zero if something goes wrong, e.g. they hit the end of the file. Therefore, they can be used as the condition in an if statement or while loop.In addition, there are two more input operations, get and peek. These functions return EOF (which is secretly -1) if they encounter the end of the file. The output of these functions should be put into an integer (not a char) variable.cin.get()    Returns the next character in the stream. cin.peek()    Returns the next character in the stream but does not remove it from the stream. The following functions can be used to test the status of a stream. They return an integer, which is either zero or non-zero.cin.good()    Returns 0 if the stream has encountered problems such as reading the end of file, non-existent file. cin.bad()    Returns non-zero value if the stream is totally unusable, e.g. the file cannot be opened (but not if the stream has merely hit the end of the file). cin.eof()    Returns a non-zero value if the stream has hit the end of the file. Notice that the stream's status will change to bad (not good, eof, etc) after the first read request which encounters a problem. So, to use one of these functions, you attempt to do what you wanted to do (e.g. open the file, read the next number from the file, ...). If the action can't succeed, the program won't crash, though some of your variables might not contain the values you intended. Next, use the status function to check whether the action succeeded.