1/* Copyright (C) 2002-2026 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library. If not, see
16 <https://www.gnu.org/licenses/>. */
17
18#ifndef _SEMAPHORE_H
19# error "Never use <bits/semaphore.h> directly; include <semaphore.h> instead."
20#endif
21
22#if _MIPS_SIM == _ABI64
23# define __SIZEOF_SEM_T 32
24#else
25# define __SIZEOF_SEM_T 16
26#endif
27
28/* Value returned if `sem_open' failed. */
29#define SEM_FAILED ((sem_t *) 0)
30
31
32typedef union
33{
34 char __size[__SIZEOF_SEM_T];
35 long int __align;
36} sem_t;