explain_endgrent_or_die - finish group file accesses and report errors

       libexplain version 1.4
       Copyright (C) 2013 Peter Miller

                                                                                      explain_endgrent_or_die(3)

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

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

       The  explain_endgrent_or_die  function  is  intended  to  be  used  in a fashion similar to the following
       example:
              explain_endgrent_or_die();

       explain_endgrent_or_die - finish group file accesses and report errors

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

       The explain_endgrent_on_error function always returns the value return by the wrapped endgrent(3)  system
       call.

endgrent(3)
               finish group file accesses

       explain_endgrent(3)
               explain endgrent(3) errors

       exit(2) terminate the calling process

       #include <libexplain/endgrent.h>
       void explain_endgrent_or_die(void);
       void explain_endgrent_on_error(void);