NAME

       explain_getw_or_die - input a word (int) and report errors

SYNOPSIS

       #include <libexplain/getw.h>
       int explain_getw_or_die(FILE *fp);
       int explain_getw_on_error(FILE *fp);

DESCRIPTION

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

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

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

RETURN VALUE

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

       The explain_getw_on_error function always returns the value return by the wrapped  getw(3)
       system call.

EXAMPLE

       The  explain_getw_or_die  function  is  intended  to  be  used in a fashion similar to the
       following example:
              int result = explain_getw_or_die(fp);

SEE ALSO

       getw(3) input a word (int)

       explain_getw(3)
               explain getw(3) errors

       exit(2) terminate the calling process

COPYRIGHT

       libexplain version 1.4
       Copyright (C) 2010 Peter Miller

                                                                           explain_getw_or_die(3)