explain_fflush_or_die - flush a stream and report errors

       libexplain version 1.4
       Copyright (C) 2009 Peter Miller

                                                                                        explain_fflush_or_die(3)

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

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

       fp      The fp, exactly as to be passed to the fflush(3) system call.

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

       explain_fflush_or_die - flush a stream and report errors

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

       The explain_fflush_on_error function always returns the value return  by  the  wrapped  fflush(3)  system
       call.

fflush(3)
               flush a stream

       explain_fflush(3)
               explain fflush(3) errors

       exit(2) terminate the calling process

       #include <libexplain/fflush.h>
       void explain_fflush_or_die(FILE *fp);
       int explain_fflush_on_error(FILE *fp);