explain_tcflush_or_die - discard terminal data and report errors

       libexplain version 1.4
       Copyright (C) 2009 Peter Miller

                                                                                       explain_tcflush_or_die(3)

       The explain_tcflush_or_die function is used to call the tcflush(3) system call. On failure an explanation
       will be printed to stderr, obtained from the explain_tcflush(3) function, and then the process terminates
       by calling exit(EXIT_FAILURE).

       The  explain_tcflush_on_error  function  is  used  to  call  the  tcflush(3)  system  call. On failure an
       explanation will be printed to stderr, obtained from the explain_tcflush(3) function, but  still  returns
       to the caller.

       fildes  The fildes, exactly as to be passed to the tcflush(3) system call.

       selector
               The selector, exactly as to be passed to the tcflush(3) system call.

       The explain_tcflush_or_die function is intended to be used in a fashion similar to the following example:
              explain_tcflush_or_die(fildes, selector);

       explain_tcflush_or_die - discard terminal data and report errors

       The  explain_tcflush_or_die  function  only  returns  on success, see tcflush(3) for more information. On
       failure, prints an explanation and exits, it does not return.

       The explain_tcflush_on_error function always returns the value return by the  wrapped  tcflush(3)  system
       call.

tcflush(3)
               discard terminal data

       explain_tcflush(3)
               explain tcflush(3) errors

       exit(2) terminate the calling process

       #include <libexplain/tcflush.h>
       void explain_tcflush_or_die(int fildes, int selector);
       int explain_tcflush_on_error(int fildes, int selector);