bionic (3) explain_fflush_or_die.3.gz

NAME

       explain_fflush_or_die - flush a stream and report errors

SYNOPSIS

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

DESCRIPTION

       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.

RETURN VALUE

       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.

EXAMPLE

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

SEE ALSO

       fflush(3)
               flush a stream

       explain_fflush(3)
               explain fflush(3) errors

       exit(2) terminate the calling process

COPYRIGHT

       libexplain version 1.4
       Copyright (C) 2009 Peter Miller

                                                                                        explain_fflush_or_die(3)