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The C and C++ Include Header Files

/usr/include/x86_64-linux-gnu/sys/ipc.h


$ cat -n /usr/include/x86_64-linux-gnu/sys/ipc.h

     1	/* Copyright (C) 1995-2024 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 _SYS_IPC_H
    19	#define _SYS_IPC_H	1
    20	
    21	#include <features.h>
    22	
    23	/* Get system dependent definition of `struct ipc_perm' and more.  */
    24	#include <bits/ipctypes.h>
    25	#include <bits/ipc.h>
    26	
    27	#ifndef __uid_t_defined
    28	typedef __uid_t uid_t;
    29	# define __uid_t_defined
    30	#endif
    31	
    32	#ifndef __gid_t_defined
    33	typedef __gid_t gid_t;
    34	# define __gid_t_defined
    35	#endif
    36	
    37	#ifndef __mode_t_defined
    38	typedef __mode_t mode_t;
    39	# define __mode_t_defined
    40	#endif
    41	
    42	#ifndef __key_t_defined
    43	typedef __key_t key_t;
    44	# define __key_t_defined
    45	#endif
    46	
    47	__BEGIN_DECLS
    48	
    49	/* Generates key for System V style IPC.  */
    50	extern key_t ftok (const char *__pathname, int __proj_id) __THROW;
    51	
    52	__END_DECLS
    53	
    54	#endif /* sys/ipc.h */