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The C and C++ Include Header Files

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


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

     1	/* System-specific extensions of <dirent.h>.  Linux version.
     2	   Copyright (C) 2019-2024 Free Software Foundation, Inc.
     3	   This file is part of the GNU C Library.
     4	
     5	   The GNU C Library is free software; you can redistribute it and/or
     6	   modify it under the terms of the GNU Lesser General Public
     7	   License as published by the Free Software Foundation; either
     8	   version 2.1 of the License, or (at your option) any later version.
     9	
    10	   The GNU C Library is distributed in the hope that it will be useful,
    11	   but WITHOUT ANY WARRANTY; without even the implied warranty of
    12	   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    13	   Lesser General Public License for more details.
    14	
    15	   You should have received a copy of the GNU Lesser General Public
    16	   License along with the GNU C Library; if not, see
    17	   <https://www.gnu.org/licenses/>.  */
    18	
    19	#ifndef _DIRENT_H
    20	# error "Never include <bits/dirent_ext.h> directly; use <dirent.h> instead."
    21	#endif
    22	
    23	__BEGIN_DECLS
    24	
    25	#ifdef __USE_GNU
    26	/* Read from the directory descriptor FD into LENGTH bytes at BUFFER.
    27	   Return the number of bytes read on success (0 for end of
    28	   directory), and -1 for failure.  */
    29	extern __ssize_t getdents64 (int __fd, void *__buffer, size_t __length)
    30	  __THROW __nonnull ((2));
    31	#endif
    32	
    33	__END_DECLS