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stdint_.h

/* Copyright (C) 2001-2002, 2004-2007 Free Software Foundation, Inc.
   Written by Paul Eggert, Bruno Haible, Sam Steingold, Peter Burwood.
   This file is part of gnulib.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2, or (at your option)
   any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software Foundation,
   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */

#ifndef _GL_STDINT_H
#define _GL_STDINT_H

/*
 * ISO C 99 <stdint.h> for platforms that lack it.
 * <http://www.opengroup.org/susv3xbd/stdint.h.html>
 */

/* Get those types that are already defined in other system include
   files, so that we can "#define int8_t signed char" below without
   worrying about a later system include file containing a "typedef
   signed char int8_t;" that will get messed up by our macro.  Our
   macros should all be consistent with the system versions, except
   for the "fast" types and macros, which we recommend against using
   in public interfaces due to compiler differences.  */

#if @HAVE_STDINT_H@
# if defined __sgi && ! defined __c99
   /* Bypass IRIX's <stdint.h> if in C89 mode, since it merely annoys users
      with "This header file is to be used only for c99 mode compilations"
      diagnostics.  */
#  define __STDINT_H__
# endif
  /* Other systems may have an incomplete or buggy <stdint.h>.
     Include it before <inttypes.h>, since any "#include <stdint.h>"
     in <inttypes.h> would reinclude us, skipping our contents because
     _GL_STDINT_H is defined.  */
# include @ABSOLUTE_STDINT_H@
#endif

/* <sys/types.h> defines some of the stdint.h types as well, on glibc,
   IRIX 6.5, and OpenBSD 3.8 (via <machine/types.h>).
   AIX 5.2 <sys/types.h> isn't needed and causes troubles.
   MacOS X 10.4.6 <sys/types.h> includes <stdint.h> (which is us), but
   relies on the system <stdint.h> definitions, so include
   <sys/types.h> after @ABSOLUTE_STDINT_H@.  */
#if @HAVE_SYS_TYPES_H@ && ! defined _AIX
# include <sys/types.h>
#endif

/* Get LONG_MIN, LONG_MAX, ULONG_MAX.  */
#include <limits.h>

#if @HAVE_INTTYPES_H@
  /* In OpenBSD 3.8, <inttypes.h> includes <machine/types.h>, which defines
     int{8,16,32,64}_t, uint{8,16,32,64}_t and __BIT_TYPES_DEFINED__.
     <inttypes.h> also defines intptr_t and uintptr_t.  */
# define _GL_JUST_INCLUDE_ABSOLUTE_INTTYPES_H
# include <inttypes.h>
# undef _GL_JUST_INCLUDE_ABSOLUTE_INTTYPES_H
#elif @HAVE_SYS_INTTYPES_H@
  /* Solaris 7 <sys/inttypes.h> has the types except the *_fast*_t types, and
     the macros except for *_FAST*_*, INTPTR_MIN, PTRDIFF_MIN, PTRDIFF_MAX.  */
# include <sys/inttypes.h>
#endif

#if @HAVE_SYS_BITYPES_H@ && ! defined __BIT_TYPES_DEFINED__
  /* Linux libc4 >= 4.6.7 and libc5 have a <sys/bitypes.h> that defines
     int{8,16,32,64}_t and __BIT_TYPES_DEFINED__.  In libc5 >= 5.2.2 it is
     included by <sys/types.h>.  */
# include <sys/bitypes.h>
#endif

#if ! defined __cplusplus || defined __STDC_CONSTANT_MACROS

/* Get WCHAR_MIN, WCHAR_MAX.  */
# if ! (defined WCHAR_MIN && defined WCHAR_MAX)
#  include <wchar.h>
# endif

#endif

/* Minimum and maximum values for a integer type under the usual assumption.
   Return an unspecified value if BITS == 0, adding a check to pacify
   picky compilers.  */

#define _STDINT_MIN(signed, bits, zero) \
  ((signed) ? (- ((zero) + 1) << ((bits) ? (bits) - 1 : 0)) : (zero))

#define _STDINT_MAX(signed, bits, zero) \
  ((signed) \
   ? ~ _STDINT_MIN (signed, bits, zero) \
   : ((((zero) + 1) << ((bits) ? (bits) - 1 : 0)) - 1) * 2 + 1)

/* 7.18.1.1. Exact-width integer types */

/* Here we assume a standard architecture where the hardware integer
   types have 8, 16, 32, optionally 64 bits.  */

#undef int8_t
#undef uint8_t
#define int8_t signed char
#define uint8_t unsigned char

#undef int16_t
#undef uint16_t
#define int16_t short int
#define uint16_t unsigned short int

#undef int32_t
#undef uint32_t
#define int32_t int
#define uint32_t unsigned int

#undef int64_t
#if LONG_MAX >> 31 >> 31 == 1
# define int64_t long int
#elif defined _MSC_VER
# define int64_t __int64
#elif @HAVE_LONG_LONG_INT@
# define int64_t long long int
#endif

#undef uint64_t
#if ULONG_MAX >> 31 >> 31 >> 1 == 1
# define uint64_t unsigned long int
#elif defined _MSC_VER
# define uint64_t unsigned __int64
#elif @HAVE_UNSIGNED_LONG_LONG_INT@
# define uint64_t unsigned long long int
#endif

/* Avoid collision with Solaris 2.5.1 <pthread.h> etc.  */
#define _UINT8_T
#define _UINT32_T
#define _UINT64_T


/* 7.18.1.2. Minimum-width integer types */

/* Here we assume a standard architecture where the hardware integer
   types have 8, 16, 32, optionally 64 bits. Therefore the leastN_t types
   are the same as the corresponding N_t types.  */

#undef int_least8_t
#undef uint_least8_t
#undef int_least16_t
#undef uint_least16_t
#undef int_least32_t
#undef uint_least32_t
#undef int_least64_t
#undef uint_least64_t
#define int_least8_t int8_t
#define uint_least8_t uint8_t
#define int_least16_t int16_t
#define uint_least16_t uint16_t
#define int_least32_t int32_t
#define uint_least32_t uint32_t
#ifdef int64_t
# define int_least64_t int64_t
#endif
#ifdef uint64_t
# define uint_least64_t uint64_t
#endif

/* 7.18.1.3. Fastest minimum-width integer types */

/* Note: Other <stdint.h> substitutes may define these types differently.
   It is not recommended to use these types in public header files. */

/* Here we assume a standard architecture where the hardware integer
   types have 8, 16, 32, optionally 64 bits. Therefore the fastN_t types
   are taken from the same list of types.  Assume that 'long int'
   is fast enough for all narrower integers.  */

#undef int_fast8_t
#undef uint_fast8_t
#undef int_fast16_t
#undef uint_fast16_t
#undef int_fast32_t
#undef uint_fast32_t
#undef int_fast64_t
#undef uint_fast64_t
#define int_fast8_t long int
#define uint_fast8_t unsigned int_fast8_t
#define int_fast16_t long int
#define uint_fast16_t unsigned int_fast16_t
#define int_fast32_t long int
#define uint_fast32_t unsigned int_fast32_t
#ifdef int64_t
# define int_fast64_t int64_t
#endif
#ifdef uint64_t
# define uint_fast64_t uint64_t
#endif

/* 7.18.1.4. Integer types capable of holding object pointers */

#undef intptr_t
#undef uintptr_t
#define intptr_t long int
#define uintptr_t unsigned long int

/* 7.18.1.5. Greatest-width integer types */

/* Note: These types are compiler dependent. It may be unwise to use them in
   public header files. */

#undef intmax_t
#if @HAVE_LONG_LONG_INT@ && LONG_MAX >> 30 == 1
# define intmax_t long long int
#elif defined int64_t
# define intmax_t int64_t
#else
# define intmax_t long int
#endif

#undef uintmax_t
#if @HAVE_UNSIGNED_LONG_LONG_INT@ && ULONG_MAX >> 31 == 1
# define uintmax_t unsigned long long int
#elif defined uint64_t
# define uintmax_t uint64_t
#else
# define uintmax_t unsigned long int
#endif

/* 7.18.2. Limits of specified-width integer types */

#if ! defined __cplusplus || defined __STDC_LIMIT_MACROS

/* 7.18.2.1. Limits of exact-width integer types */

/* Here we assume a standard architecture where the hardware integer
   types have 8, 16, 32, optionally 64 bits.  */

#undef INT8_MIN
#undef INT8_MAX
#undef UINT8_MAX
#define INT8_MIN  (~ INT8_MAX)
#define INT8_MAX  127
#define UINT8_MAX  255

#undef INT16_MIN
#undef INT16_MAX
#undef UINT16_MAX
#define INT16_MIN  (~ INT16_MAX)
#define INT16_MAX  32767
#define UINT16_MAX  65535

#undef INT32_MIN
#undef INT32_MAX
#undef UINT32_MAX
#define INT32_MIN  (~ INT32_MAX)
#define INT32_MAX  2147483647
#define UINT32_MAX  4294967295U

#undef INT64_MIN
#undef INT64_MAX
#ifdef int64_t
# define INT64_MIN  (~ INT64_MAX)
# define INT64_MAX  INTMAX_C (9223372036854775807)
#endif

#undef UINT64_MAX
#ifdef uint64_t
# define UINT64_MAX  UINTMAX_C (18446744073709551615)
#endif

/* 7.18.2.2. Limits of minimum-width integer types */

/* Here we assume a standard architecture where the hardware integer
   types have 8, 16, 32, optionally 64 bits. Therefore the leastN_t types
   are the same as the corresponding N_t types.  */

#undef INT_LEAST8_MIN
#undef INT_LEAST8_MAX
#undef UINT_LEAST8_MAX
#define INT_LEAST8_MIN  INT8_MIN
#define INT_LEAST8_MAX  INT8_MAX
#define UINT_LEAST8_MAX  UINT8_MAX

#undef INT_LEAST16_MIN
#undef INT_LEAST16_MAX
#undef UINT_LEAST16_MAX
#define INT_LEAST16_MIN  INT16_MIN
#define INT_LEAST16_MAX  INT16_MAX
#define UINT_LEAST16_MAX  UINT16_MAX

#undef INT_LEAST32_MIN
#undef INT_LEAST32_MAX
#undef UINT_LEAST32_MAX
#define INT_LEAST32_MIN  INT32_MIN
#define INT_LEAST32_MAX  INT32_MAX
#define UINT_LEAST32_MAX  UINT32_MAX

#undef INT_LEAST64_MIN
#undef INT_LEAST64_MAX
#ifdef int64_t
# define INT_LEAST64_MIN  INT64_MIN
# define INT_LEAST64_MAX  INT64_MAX
#endif

#undef UINT_LEAST64_MAX
#ifdef uint64_t
# define UINT_LEAST64_MAX  UINT64_MAX
#endif

/* 7.18.2.3. Limits of fastest minimum-width integer types */

/* Here we assume a standard architecture where the hardware integer
   types have 8, 16, 32, optionally 64 bits. Therefore the fastN_t types
   are taken from the same list of types.  */

#undef INT_FAST8_MIN
#undef INT_FAST8_MAX
#undef UINT_FAST8_MAX
#define INT_FAST8_MIN  LONG_MIN
#define INT_FAST8_MAX  LONG_MAX
#define UINT_FAST8_MAX  ULONG_MAX

#undef INT_FAST16_MIN
#undef INT_FAST16_MAX
#undef UINT_FAST16_MAX
#define INT_FAST16_MIN  LONG_MIN
#define INT_FAST16_MAX  LONG_MAX
#define UINT_FAST16_MAX  ULONG_MAX

#undef INT_FAST32_MIN
#undef INT_FAST32_MAX
#undef UINT_FAST32_MAX
#define INT_FAST32_MIN  LONG_MIN
#define INT_FAST32_MAX  LONG_MAX
#define UINT_FAST32_MAX  ULONG_MAX

#undef INT_FAST64_MIN
#undef INT_FAST64_MAX
#ifdef int64_t
# define INT_FAST64_MIN  INT64_MIN
# define INT_FAST64_MAX  INT64_MAX
#endif

#undef UINT_FAST64_MAX
#ifdef uint64_t
# define UINT_FAST64_MAX  UINT64_MAX
#endif

/* 7.18.2.4. Limits of integer types capable of holding object pointers */

#undef INTPTR_MIN
#undef INTPTR_MAX
#undef UINTPTR_MAX
#define INTPTR_MIN  LONG_MIN
#define INTPTR_MAX  LONG_MAX
#define UINTPTR_MAX  ULONG_MAX

/* 7.18.2.5. Limits of greatest-width integer types */

#undef INTMAX_MIN
#undef INTMAX_MAX
#define INTMAX_MIN  (~ INTMAX_MAX)
#ifdef INT64_MAX
# define INTMAX_MAX  INT64_MAX
#else
# define INTMAX_MAX  INT32_MAX
#endif

#undef UINTMAX_MAX
#ifdef UINT64_MAX
# define UINTMAX_MAX  UINT64_MAX
#else
# define UINTMAX_MAX  UINT32_MAX
#endif

/* 7.18.3. Limits of other integer types */

/* ptrdiff_t limits */
#undef PTRDIFF_MIN
#undef PTRDIFF_MAX
#define PTRDIFF_MIN  \
   _STDINT_MIN (1, @BITSIZEOF_PTRDIFF_T@, 0@PTRDIFF_T_SUFFIX@)
#define PTRDIFF_MAX  \
   _STDINT_MAX (1, @BITSIZEOF_PTRDIFF_T@, 0@PTRDIFF_T_SUFFIX@)

/* sig_atomic_t limits */
#undef SIG_ATOMIC_MIN
#undef SIG_ATOMIC_MAX
#define SIG_ATOMIC_MIN  \
   _STDINT_MIN (@HAVE_SIGNED_SIG_ATOMIC_T@, @BITSIZEOF_SIG_ATOMIC_T@, \
            0@SIG_ATOMIC_T_SUFFIX@)
#define SIG_ATOMIC_MAX  \
   _STDINT_MAX (@HAVE_SIGNED_SIG_ATOMIC_T@, @BITSIZEOF_SIG_ATOMIC_T@, \
            0@SIG_ATOMIC_T_SUFFIX@)


/* size_t limit */
#undef SIZE_MAX
#define SIZE_MAX  _STDINT_MAX (0, @BITSIZEOF_SIZE_T@, 0@SIZE_T_SUFFIX@)

/* wchar_t limits */
#undef WCHAR_MIN
#undef WCHAR_MAX
#define WCHAR_MIN  \
   _STDINT_MIN (@HAVE_SIGNED_WCHAR_T@, @BITSIZEOF_WCHAR_T@, 0@WCHAR_T_SUFFIX@)
#define WCHAR_MAX  \
   _STDINT_MAX (@HAVE_SIGNED_WCHAR_T@, @BITSIZEOF_WCHAR_T@, 0@WCHAR_T_SUFFIX@)

/* wint_t limits */
#undef WINT_MIN
#undef WINT_MAX
#define WINT_MIN  \
   _STDINT_MIN (@HAVE_SIGNED_WINT_T@, @BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
#define WINT_MAX  \
   _STDINT_MAX (@HAVE_SIGNED_WINT_T@, @BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)

#endif /* !defined __cplusplus || defined __STDC_LIMIT_MACROS */

/* 7.18.4. Macros for integer constants */

#if ! defined __cplusplus || defined __STDC_CONSTANT_MACROS

/* 7.18.4.1. Macros for minimum-width integer constants */
/* According to ISO C 99 Technical Corrigendum 1 */

/* Here we assume a standard architecture where the hardware integer
   types have 8, 16, 32, optionally 64 bits, and int is 32 bits.  */

#undef INT8_C
#undef UINT8_C
#define INT8_C(x) x
#define UINT8_C(x) x

#undef INT16_C
#undef UINT16_C
#define INT16_C(x) x
#define UINT16_C(x) x

#undef INT32_C
#undef UINT32_C
#define INT32_C(x) x
#define UINT32_C(x) x ## U

#undef INT64_C
#undef UINT64_C
#if LONG_MAX >> 31 >> 31 == 1
# define INT64_C(x) x##L
#elif defined _MSC_VER
# define INT64_C(x) x##i64
#elif @HAVE_LONG_LONG_INT@
# define INT64_C(x) x##LL
#endif
#if ULONG_MAX >> 31 >> 31 >> 1 == 1
# define UINT64_C(x) x##UL
#elif defined _MSC_VER
# define UINT64_C(x) x##ui64
#elif @HAVE_UNSIGNED_LONG_LONG_INT@
# define UINT64_C(x) x##ULL
#endif

/* 7.18.4.2. Macros for greatest-width integer constants */

#undef INTMAX_C
#if @HAVE_LONG_LONG_INT@ && LONG_MAX >> 30 == 1
# define INTMAX_C(x)   x##LL
#elif defined int64_t
# define INTMAX_C(x)   INT64_C(x)
#else
# define INTMAX_C(x)   x##L
#endif

#undef UINTMAX_C
#if @HAVE_UNSIGNED_LONG_LONG_INT@ && ULONG_MAX >> 31 == 1
# define UINTMAX_C(x)  x##ULL
#elif defined uint64_t
# define UINTMAX_C(x)  UINT64_C(x)
#else
# define UINTMAX_C(x)  x##UL
#endif

#endif /* !defined __cplusplus || defined __STDC_CONSTANT_MACROS */

#endif /* _GL_STDINT_H */

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