NAME
explain_telldir_or_die - current location in directory and report
errors
SYNOPSIS
#include <libexplain/telldir.h>
off_t explain_telldir_or_die(DIR *dir);
off_t explain_telldir_on_error(DIR *dir);
DESCRIPTION
The explain_telldir_or_die function is used to call the telldir(3)
system call. On failure an explanation will be printed to stderr,
obtained from the explain_telldir(3) function, and then the process
terminates by calling exit(EXIT_FAILURE).
The explain_telldir_on_error function is used to call the telldir(3)
system call. On failure an explanation will be printed to stderr,
obtained from the explain_telldir(3) function, but still returns to the
caller.
dir The dir, exactly as to be passed to the telldir(3) system call.
RETURN VALUE
The explain_telldir_or_die function only returns on success, see
telldir(3) for more information. On failure, prints an explanation and
exits, it does not return.
The explain_telldir_on_error function always returns the value return
by the wrapped telldir(3) system call.
EXAMPLE
The explain_telldir_or_die function is intended to be used in a fashion
similar to the following example:
off_t result = explain_telldir_or_die(dir);
SEE ALSO
telldir(3)
return current location in directory stream
explain_telldir(3)
explain telldir(3) errors
exit(2) terminate the calling process
COPYRIGHT
libexplain version 0.19
Copyright (C) 2009 Peter Miller
explain_telldir_or_die(3)