The C and C++ Include Header Files
/usr/include/x86_64-linux-gnu/bits/typesizes.h
$ cat -n /usr/include/x86_64-linux-gnu/bits/typesizes.h 1 /* bits/typesizes.h -- underlying types for *_t. Linux/x86-64 version. 2 Copyright (C) 2012-2022 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
. */ 18 19 #ifndef _BITS_TYPES_H 20 # error "Never include
directly; use
instead." 21 #endif 22 23 #ifndef _BITS_TYPESIZES_H 24 #define _BITS_TYPESIZES_H 1 25 26 /* See
for the meaning of these macros. This file exists so 27 that
need not vary across different GNU platforms. */ 28 29 /* X32 kernel interface is 64-bit. */ 30 #if defined __x86_64__ && defined __ILP32__ 31 # define __SYSCALL_SLONG_TYPE __SQUAD_TYPE 32 # define __SYSCALL_ULONG_TYPE __UQUAD_TYPE 33 #else 34 # define __SYSCALL_SLONG_TYPE __SLONGWORD_TYPE 35 # define __SYSCALL_ULONG_TYPE __ULONGWORD_TYPE 36 #endif 37 38 #define __DEV_T_TYPE __UQUAD_TYPE 39 #define __UID_T_TYPE __U32_TYPE 40 #define __GID_T_TYPE __U32_TYPE 41 #define __INO_T_TYPE __SYSCALL_ULONG_TYPE 42 #define __INO64_T_TYPE __UQUAD_TYPE 43 #define __MODE_T_TYPE __U32_TYPE 44 #ifdef __x86_64__ 45 # define __NLINK_T_TYPE __SYSCALL_ULONG_TYPE 46 # define __FSWORD_T_TYPE __SYSCALL_SLONG_TYPE 47 #else 48 # define __NLINK_T_TYPE __UWORD_TYPE 49 # define __FSWORD_T_TYPE __SWORD_TYPE 50 #endif 51 #define __OFF_T_TYPE __SYSCALL_SLONG_TYPE 52 #define __OFF64_T_TYPE __SQUAD_TYPE 53 #define __PID_T_TYPE __S32_TYPE 54 #define __RLIM_T_TYPE __SYSCALL_ULONG_TYPE 55 #define __RLIM64_T_TYPE __UQUAD_TYPE 56 #define __BLKCNT_T_TYPE __SYSCALL_SLONG_TYPE 57 #define __BLKCNT64_T_TYPE __SQUAD_TYPE 58 #define __FSBLKCNT_T_TYPE __SYSCALL_ULONG_TYPE 59 #define __FSBLKCNT64_T_TYPE __UQUAD_TYPE 60 #define __FSFILCNT_T_TYPE __SYSCALL_ULONG_TYPE 61 #define __FSFILCNT64_T_TYPE __UQUAD_TYPE 62 #define __ID_T_TYPE __U32_TYPE 63 #define __CLOCK_T_TYPE __SYSCALL_SLONG_TYPE 64 #define __TIME_T_TYPE __SYSCALL_SLONG_TYPE 65 #define __USECONDS_T_TYPE __U32_TYPE 66 #define __SUSECONDS_T_TYPE __SYSCALL_SLONG_TYPE 67 #define __SUSECONDS64_T_TYPE __SQUAD_TYPE 68 #define __DADDR_T_TYPE __S32_TYPE 69 #define __KEY_T_TYPE __S32_TYPE 70 #define __CLOCKID_T_TYPE __S32_TYPE 71 #define __TIMER_T_TYPE void * 72 #define __BLKSIZE_T_TYPE __SYSCALL_SLONG_TYPE 73 #define __FSID_T_TYPE struct { int __val[2]; } 74 #define __SSIZE_T_TYPE __SWORD_TYPE 75 #define __CPU_MASK_TYPE __SYSCALL_ULONG_TYPE 76 77 #ifdef __x86_64__ 78 /* Tell the libc code that off_t and off64_t are actually the same type 79 for all ABI purposes, even if possibly expressed as different base types 80 for C type-checking purposes. */ 81 # define __OFF_T_MATCHES_OFF64_T 1 82 83 /* Same for ino_t and ino64_t. */ 84 # define __INO_T_MATCHES_INO64_T 1 85 86 /* And for __rlim_t and __rlim64_t. */ 87 # define __RLIM_T_MATCHES_RLIM64_T 1 88 89 /* And for fsblkcnt_t, fsblkcnt64_t, fsfilcnt_t and fsfilcnt64_t. */ 90 # define __STATFS_MATCHES_STATFS64 1 91 92 /* And for getitimer, setitimer and rusage */ 93 # define __KERNEL_OLD_TIMEVAL_MATCHES_TIMEVAL64 1 94 #else 95 # define __RLIM_T_MATCHES_RLIM64_T 0 96 97 # define __STATFS_MATCHES_STATFS64 0 98 99 # define __KERNEL_OLD_TIMEVAL_MATCHES_TIMEVAL64 0 100 #endif 101 102 /* Number of descriptors that can fit in an `fd_set'. */ 103 #define __FD_SETSIZE 1024 104 105 106 #endif /* bits/typesizes.h */
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