The C and C++ Include Header Files

/usr/include/stdint.h


$ cat -n /usr/include/stdint.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	/*
    19	 *	ISO C99: 7.18 Integer types <stdint.h>
    20	 */
    21	
    22	#ifndef _STDINT_H
    23	#define _STDINT_H	1
    24	
    25	#define __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION
    26	#include <bits/libc-header-start.h>
    27	#include <bits/types.h>
    28	#include <bits/wchar.h>
    29	#include <bits/wordsize.h>
    30	
    31	/* Exact integral types.  */
    32	
    33	/* Signed.  */
    34	#include <bits/stdint-intn.h>
    35	
    36	/* Unsigned.  */
    37	#include <bits/stdint-uintn.h>
    38	
    39	
    40	/* Small types.  */
    41	#include <bits/stdint-least.h>
    42	
    43	
    44	/* Fast types.  */
    45	
    46	/* Signed.  */
    47	typedef signed char		int_fast8_t;
    48	#if __WORDSIZE == 64
    49	typedef long int		int_fast16_t;
    50	typedef long int		int_fast32_t;
    51	typedef long int		int_fast64_t;
    52	#else
    53	typedef int			int_fast16_t;
    54	typedef int			int_fast32_t;
    55	__extension__
    56	typedef long long int		int_fast64_t;
    57	#endif
    58	
    59	/* Unsigned.  */
    60	typedef unsigned char		uint_fast8_t;
    61	#if __WORDSIZE == 64
    62	typedef unsigned long int	uint_fast16_t;
    63	typedef unsigned long int	uint_fast32_t;
    64	typedef unsigned long int	uint_fast64_t;
    65	#else
    66	typedef unsigned int		uint_fast16_t;
    67	typedef unsigned int		uint_fast32_t;
    68	__extension__
    69	typedef unsigned long long int	uint_fast64_t;
    70	#endif
    71	
    72	
    73	/* Types for `void *' pointers.  */
    74	#if __WORDSIZE == 64
    75	# ifndef __intptr_t_defined
    76	typedef long int		intptr_t;
    77	#  define __intptr_t_defined
    78	# endif
    79	typedef unsigned long int	uintptr_t;
    80	#else
    81	# ifndef __intptr_t_defined
    82	typedef int			intptr_t;
    83	#  define __intptr_t_defined
    84	# endif
    85	typedef unsigned int		uintptr_t;
    86	#endif
    87	
    88	
    89	/* Largest integral types.  */
    90	typedef __intmax_t		intmax_t;
    91	typedef __uintmax_t		uintmax_t;
    92	
    93	
    94	# if __WORDSIZE == 64
    95	#  define __INT64_C(c)	c ## L
    96	#  define __UINT64_C(c)	c ## UL
    97	# else
    98	#  define __INT64_C(c)	c ## LL
    99	#  define __UINT64_C(c)	c ## ULL
   100	# endif
   101	
   102	/* Limits of integral types.  */
   103	
   104	/* Minimum of signed integral types.  */
   105	# define INT8_MIN		(-128)
   106	# define INT16_MIN		(-32767-1)
   107	# define INT32_MIN		(-2147483647-1)
   108	# define INT64_MIN		(-__INT64_C(9223372036854775807)-1)
   109	/* Maximum of signed integral types.  */
   110	# define INT8_MAX		(127)
   111	# define INT16_MAX		(32767)
   112	# define INT32_MAX		(2147483647)
   113	# define INT64_MAX		(__INT64_C(9223372036854775807))
   114	
   115	/* Maximum of unsigned integral types.  */
   116	# define UINT8_MAX		(255)
   117	# define UINT16_MAX		(65535)
   118	# define UINT32_MAX		(4294967295U)
   119	# define UINT64_MAX		(__UINT64_C(18446744073709551615))
   120	
   121	
   122	/* Minimum of signed integral types having a minimum size.  */
   123	# define INT_LEAST8_MIN		(-128)
   124	# define INT_LEAST16_MIN	(-32767-1)
   125	# define INT_LEAST32_MIN	(-2147483647-1)
   126	# define INT_LEAST64_MIN	(-__INT64_C(9223372036854775807)-1)
   127	/* Maximum of signed integral types having a minimum size.  */
   128	# define INT_LEAST8_MAX		(127)
   129	# define INT_LEAST16_MAX	(32767)
   130	# define INT_LEAST32_MAX	(2147483647)
   131	# define INT_LEAST64_MAX	(__INT64_C(9223372036854775807))
   132	
   133	/* Maximum of unsigned integral types having a minimum size.  */
   134	# define UINT_LEAST8_MAX	(255)
   135	# define UINT_LEAST16_MAX	(65535)
   136	# define UINT_LEAST32_MAX	(4294967295U)
   137	# define UINT_LEAST64_MAX	(__UINT64_C(18446744073709551615))
   138	
   139	
   140	/* Minimum of fast signed integral types having a minimum size.  */
   141	# define INT_FAST8_MIN		(-128)
   142	# if __WORDSIZE == 64
   143	#  define INT_FAST16_MIN	(-9223372036854775807L-1)
   144	#  define INT_FAST32_MIN	(-9223372036854775807L-1)
   145	# else
   146	#  define INT_FAST16_MIN	(-2147483647-1)
   147	#  define INT_FAST32_MIN	(-2147483647-1)
   148	# endif
   149	# define INT_FAST64_MIN		(-__INT64_C(9223372036854775807)-1)
   150	/* Maximum of fast signed integral types having a minimum size.  */
   151	# define INT_FAST8_MAX		(127)
   152	# if __WORDSIZE == 64
   153	#  define INT_FAST16_MAX	(9223372036854775807L)
   154	#  define INT_FAST32_MAX	(9223372036854775807L)
   155	# else
   156	#  define INT_FAST16_MAX	(2147483647)
   157	#  define INT_FAST32_MAX	(2147483647)
   158	# endif
   159	# define INT_FAST64_MAX		(__INT64_C(9223372036854775807))
   160	
   161	/* Maximum of fast unsigned integral types having a minimum size.  */
   162	# define UINT_FAST8_MAX		(255)
   163	# if __WORDSIZE == 64
   164	#  define UINT_FAST16_MAX	(18446744073709551615UL)
   165	#  define UINT_FAST32_MAX	(18446744073709551615UL)
   166	# else
   167	#  define UINT_FAST16_MAX	(4294967295U)
   168	#  define UINT_FAST32_MAX	(4294967295U)
   169	# endif
   170	# define UINT_FAST64_MAX	(__UINT64_C(18446744073709551615))
   171	
   172	
   173	/* Values to test for integral types holding `void *' pointer.  */
   174	# if __WORDSIZE == 64
   175	#  define INTPTR_MIN		(-9223372036854775807L-1)
   176	#  define INTPTR_MAX		(9223372036854775807L)
   177	#  define UINTPTR_MAX		(18446744073709551615UL)
   178	# else
   179	#  define INTPTR_MIN		(-2147483647-1)
   180	#  define INTPTR_MAX		(2147483647)
   181	#  define UINTPTR_MAX		(4294967295U)
   182	# endif
   183	
   184	
   185	/* Minimum for largest signed integral type.  */
   186	# define INTMAX_MIN		(-__INT64_C(9223372036854775807)-1)
   187	/* Maximum for largest signed integral type.  */
   188	# define INTMAX_MAX		(__INT64_C(9223372036854775807))
   189	
   190	/* Maximum for largest unsigned integral type.  */
   191	# define UINTMAX_MAX		(__UINT64_C(18446744073709551615))
   192	
   193	
   194	/* Limits of other integer types.  */
   195	
   196	/* Limits of `ptrdiff_t' type.  */
   197	# if __WORDSIZE == 64
   198	#  define PTRDIFF_MIN		(-9223372036854775807L-1)
   199	#  define PTRDIFF_MAX		(9223372036854775807L)
   200	# else
   201	#  if __WORDSIZE32_PTRDIFF_LONG
   202	#   define PTRDIFF_MIN		(-2147483647L-1)
   203	#   define PTRDIFF_MAX		(2147483647L)
   204	#  else
   205	#   define PTRDIFF_MIN		(-2147483647-1)
   206	#   define PTRDIFF_MAX		(2147483647)
   207	#  endif
   208	# endif
   209	
   210	/* Limits of `sig_atomic_t'.  */
   211	# define SIG_ATOMIC_MIN		(-2147483647-1)
   212	# define SIG_ATOMIC_MAX		(2147483647)
   213	
   214	/* Limit of `size_t' type.  */
   215	# if __WORDSIZE == 64
   216	#  define SIZE_MAX		(18446744073709551615UL)
   217	# else
   218	#  if __WORDSIZE32_SIZE_ULONG
   219	#   define SIZE_MAX		(4294967295UL)
   220	#  else
   221	#   define SIZE_MAX		(4294967295U)
   222	#  endif
   223	# endif
   224	
   225	/* Limits of `wchar_t'.  */
   226	# ifndef WCHAR_MIN
   227	/* These constants might also be defined in <wchar.h>.  */
   228	#  define WCHAR_MIN		__WCHAR_MIN
   229	#  define WCHAR_MAX		__WCHAR_MAX
   230	# endif
   231	
   232	/* Limits of `wint_t'.  */
   233	# define WINT_MIN		(0u)
   234	# define WINT_MAX		(4294967295u)
   235	
   236	/* Signed.  */
   237	# define INT8_C(c)	c
   238	# define INT16_C(c)	c
   239	# define INT32_C(c)	c
   240	# if __WORDSIZE == 64
   241	#  define INT64_C(c)	c ## L
   242	# else
   243	#  define INT64_C(c)	c ## LL
   244	# endif
   245	
   246	/* Unsigned.  */
   247	# define UINT8_C(c)	c
   248	# define UINT16_C(c)	c
   249	# define UINT32_C(c)	c ## U
   250	# if __WORDSIZE == 64
   251	#  define UINT64_C(c)	c ## UL
   252	# else
   253	#  define UINT64_C(c)	c ## ULL
   254	# endif
   255	
   256	/* Maximal type.  */
   257	# if __WORDSIZE == 64
   258	#  define INTMAX_C(c)	c ## L
   259	#  define UINTMAX_C(c)	c ## UL
   260	# else
   261	#  define INTMAX_C(c)	c ## LL
   262	#  define UINTMAX_C(c)	c ## ULL
   263	# endif
   264	
   265	#if __GLIBC_USE (IEC_60559_BFP_EXT_C2X)
   266	
   267	# define INT8_WIDTH 8
   268	# define UINT8_WIDTH 8
   269	# define INT16_WIDTH 16
   270	# define UINT16_WIDTH 16
   271	# define INT32_WIDTH 32
   272	# define UINT32_WIDTH 32
   273	# define INT64_WIDTH 64
   274	# define UINT64_WIDTH 64
   275	
   276	# define INT_LEAST8_WIDTH 8
   277	# define UINT_LEAST8_WIDTH 8
   278	# define INT_LEAST16_WIDTH 16
   279	# define UINT_LEAST16_WIDTH 16
   280	# define INT_LEAST32_WIDTH 32
   281	# define UINT_LEAST32_WIDTH 32
   282	# define INT_LEAST64_WIDTH 64
   283	# define UINT_LEAST64_WIDTH 64
   284	
   285	# define INT_FAST8_WIDTH 8
   286	# define UINT_FAST8_WIDTH 8
   287	# define INT_FAST16_WIDTH __WORDSIZE
   288	# define UINT_FAST16_WIDTH __WORDSIZE
   289	# define INT_FAST32_WIDTH __WORDSIZE
   290	# define UINT_FAST32_WIDTH __WORDSIZE
   291	# define INT_FAST64_WIDTH 64
   292	# define UINT_FAST64_WIDTH 64
   293	
   294	# define INTPTR_WIDTH __WORDSIZE
   295	# define UINTPTR_WIDTH __WORDSIZE
   296	
   297	# define INTMAX_WIDTH 64
   298	# define UINTMAX_WIDTH 64
   299	
   300	# define PTRDIFF_WIDTH __WORDSIZE
   301	# define SIG_ATOMIC_WIDTH 32
   302	# define SIZE_WIDTH __WORDSIZE
   303	# define WCHAR_WIDTH 32
   304	# define WINT_WIDTH 32
   305	
   306	#endif
   307	
   308	#endif /* stdint.h */