|explain_telldir_or_die(3)||Library Functions Manual||explain_telldir_or_die(3)|
NAME¶explain_telldir_or_die - current location in directory and report errors
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.
- 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);
COPYRIGHT¶libexplain version 1.4
Copyright (C) 2009 Peter Miller