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The C and C++ Include Header Files

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


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

     1	/* Copyright (C) 2001-2024 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	/* Define the machine-dependent type `jmp_buf'.  x86-64 version.  */
    19	#ifndef _BITS_SETJMP_H
    20	#define _BITS_SETJMP_H  1
    21	
    22	#if !defined _SETJMP_H && !defined _PTHREAD_H
    23	# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
    24	#endif
    25	
    26	#include <bits/wordsize.h>
    27	
    28	#ifndef _ASM
    29	
    30	# if __WORDSIZE == 64
    31	typedef long int __jmp_buf[8];
    32	# elif defined  __x86_64__
    33	__extension__ typedef long long int __jmp_buf[8];
    34	# else
    35	typedef int __jmp_buf[6];
    36	# endif
    37	
    38	#endif
    39	
    40	#endif  /* bits/setjmp.h */