The C and C++ Include Header Files

/usr/include/x86_64-linux-gnu/bits/statfs.h


$ cat -n /usr/include/x86_64-linux-gnu/bits/statfs.h

     1	/* Copyright (C) 1997-2024 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_STATFS_H
    19	# error "Never include <bits/statfs.h> directly; use <sys/statfs.h> instead."
    20	#endif
    21	
    22	#include <bits/types.h>
    23	
    24	struct statfs
    25	  {
    26	    __fsword_t f_type;
    27	    __fsword_t f_bsize;
    28	#ifndef __USE_FILE_OFFSET64
    29	    __fsblkcnt_t f_blocks;
    30	    __fsblkcnt_t f_bfree;
    31	    __fsblkcnt_t f_bavail;
    32	    __fsfilcnt_t f_files;
    33	    __fsfilcnt_t f_ffree;
    34	#else
    35	    __fsblkcnt64_t f_blocks;
    36	    __fsblkcnt64_t f_bfree;
    37	    __fsblkcnt64_t f_bavail;
    38	    __fsfilcnt64_t f_files;
    39	    __fsfilcnt64_t f_ffree;
    40	#endif
    41	    __fsid_t f_fsid;
    42	    __fsword_t f_namelen;
    43	    __fsword_t f_frsize;
    44	    __fsword_t f_flags;
    45	    __fsword_t f_spare[4];
    46	  };
    47	
    48	#ifdef __USE_LARGEFILE64
    49	struct statfs64
    50	  {
    51	    __fsword_t f_type;
    52	    __fsword_t f_bsize;
    53	    __fsblkcnt64_t f_blocks;
    54	    __fsblkcnt64_t f_bfree;
    55	    __fsblkcnt64_t f_bavail;
    56	    __fsfilcnt64_t f_files;
    57	    __fsfilcnt64_t f_ffree;
    58	    __fsid_t f_fsid;
    59	    __fsword_t f_namelen;
    60	    __fsword_t f_frsize;
    61	    __fsword_t f_flags;
    62	    __fsword_t f_spare[4];
    63	  };
    64	#endif
    65	
    66	/* Tell code we have these members.  */
    67	#define _STATFS_F_NAMELEN
    68	#define _STATFS_F_FRSIZE
    69	#define _STATFS_F_FLAGS