Mercurial > gnulib
view lib/cycle-check.h @ 40198:5a34193cbc07
long-options: add parse_gnu_standard_options_only
Discussed in https://bugs.gnu.org/33468 .
* lib/long-options.c (parse_long_options): Use EXIT_SUCCESS instead
of 0.
(parse_gnu_standard_options_only): Add function to
process the GNU default options --help and --version and fail for any other
unknown long or short option. See
https://gnu.org/prep/standards/html_node/Command_002dLine-Interfaces.html .
* lib/long-options.h (parse_gnu_standard_options_only): Declare it.
* modules/long-options (depends-on): Add stdbool, exitfail.
* top/maint.mk (sc_prohibit_long_options_without_use): Update
syntax-check rule, add new function name.
author | Bernhard Voelker <mail@bernhard-voelker.de> |
---|---|
date | Thu, 29 Nov 2018 09:06:26 +0100 |
parents | b06060465f09 |
children |
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/* help detect directory cycles efficiently Copyright (C) 2003-2004, 2006, 2009-2019 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>. */ /* Written by Jim Meyering */ #ifndef CYCLE_CHECK_H # define CYCLE_CHECK_H 1 # include <stdint.h> # include <stdbool.h> # include "dev-ino.h" # include "same-inode.h" struct cycle_check_state { struct dev_ino dev_ino; uintmax_t chdir_counter; int magic; }; void cycle_check_init (struct cycle_check_state *state); bool cycle_check (struct cycle_check_state *state, struct stat const *sb); # define CYCLE_CHECK_REFLECT_CHDIR_UP(State, SB_dir, SB_subdir) \ do \ { \ /* You must call cycle_check at least once before using this macro. */ \ if ((State)->chdir_counter == 0) \ abort (); \ if (SAME_INODE ((State)->dev_ino, SB_subdir)) \ { \ (State)->dev_ino.st_dev = (SB_dir).st_dev; \ (State)->dev_ino.st_ino = (SB_dir).st_ino; \ } \ } \ while (0) #endif