[apple/xnu.git] / EXTERNAL_HEADERS / stdint.h

/*
 * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
 *
 * We build on <machine/types.h> rather than <sys/types.h> in order to
 * minimize the global namespace pollution (i.e., we'd like to define
 * *only* those identifiers that the C standard mandates should be
 * defined by <stdint.h>).   Using <machine/types.h> means that (at
 * least as of January 2001) all of the extra macros that do get
 * #defined by #include'ing <stdint.h> are in the implementor's
 * namespace ("_[A-Z].*" or "__.*").
 *
 * The reason that we do #include the relevant ...types.h instead of
 * creating several "competing" typedefs is to make header collisions
 * less likely during the transition to C99.
 *
 * Caveat:  There are still five extra typedef's defined by doing it
 * this way:  "u_int{8,16,32,64}_t" and "register_t".  Might be
 * fixable via pre- and post- #defines, but probably not worth it.
 */

#ifndef _STDINT_H_
#define _STDINT_H_

#include <machine/types.h>

/* from ISO/IEC 988:1999 spec */

/* 7.18.1.1 Exact-width integer types */
                                         /* int8_t is defined in <machine/types.h> */
                                         /* int16_t is defined in <machine/types.h> */
                                         /* int32_t is defined in <machine/types.h> */
                                         /* int64_t is defined in <machine/types.h> */
typedef u_int8_t              uint8_t;   /* u_int8_t is defined in <machine/types.h> */
typedef u_int16_t            uint16_t;   /* u_int16_t is defined in <machine/types.h> */
typedef u_int32_t            uint32_t;   /* u_int32_t is defined in <machine/types.h> */
typedef u_int64_t            uint64_t;   /* u_int64_t is defined in <machine/types.h> */


/* 7.18.1.2 Minumun-width integer types */
typedef int8_t           int_least8_t;
typedef int16_t         int_least16_t;
typedef int32_t         int_least32_t;
typedef int64_t         int_least64_t;
typedef uint8_t         uint_least8_t;
typedef uint16_t       uint_least16_t;
typedef uint32_t       uint_least32_t;
typedef uint64_t       uint_least64_t;


/* 7.18.1.3 Fastest-width integer types */
typedef int8_t            int_fast8_t;
typedef int16_t          int_fast16_t;
typedef int32_t          int_fast32_t;
typedef int64_t          int_fast64_t;
typedef uint8_t          uint_fast8_t;
typedef uint16_t        uint_fast16_t;
typedef uint32_t        uint_fast32_t;
typedef uint64_t        uint_fast64_t;


/* 7.18.1.4 Integer types capable of hgolding object pointers */
                                        /* intptr_t is defined in <machine/types.h> */
                                        /* uintptr_t is defined in <machine/types.h> */


/* 7.18.1.5 Greatest-width integer types */
typedef long long                intmax_t;
typedef unsigned long long      uintmax_t;


/* "C++ implementations should define these macros only when
 *  __STDC_LIMIT_MACROS is defined before <stdint.h> is included."
 * In other words, if C++, then __STDC_LIMIT_MACROS enables the
 * macros below.  (Note that there also exists a different enabling
 * macro (__STDC_CONSTANT_MACROS) for the last few, below.)
 */
#if (! defined(__cplusplus)) || defined(__STDC_LIMIT_MACROS)


/* 7.18.2 Limits of specified-width integer types:
 *   These #defines specify the minimum and maximum limits
 *   of each of the types declared above.
 */


/* 7.18.2.1 Limits of exact-width integer types */
#define INT8_MIN         (-127-1)
#define INT16_MIN        (-32767-1)
#define INT32_MIN        (-2147483647-1)
#define INT64_MIN        (-9223372036854775807LL-1LL)

#define INT8_MAX         +127
#define INT16_MAX        +32767
#define INT32_MAX        +2147483647
#define INT64_MAX        +9223372036854775807LL

#define UINT8_MAX         255
#define UINT16_MAX        65535
#define UINT32_MAX        4294967295U
#define UINT64_MAX        18446744073709551615ULL

/* 7.18.2.2 Limits of minimum-width integer types */
#define INT_LEAST8_MIN    INT8_MIN
#define INT_LEAST16_MIN   INT16_MIN
#define INT_LEAST32_MIN   INT32_MIN
#define INT_LEAST64_MIN   INT64_MIN

#define INT_LEAST8_MAX    INT8_MAX
#define INT_LEAST16_MAX   INT16_MAX
#define INT_LEAST32_MAX   INT32_MAX
#define INT_LEAST64_MAX   INT64_MAX

#define UINT_LEAST8_MAX   UINT8_MAX
#define UINT_LEAST16_MAX  UINT16_MAX
#define UINT_LEAST32_MAX  UINT32_MAX
#define UINT_LEAST64_MAX  UINT64_MAX

/* 7.18.2.3 Limits of fastest minimum-width integer types */
#define INT_FAST8_MIN     INT8_MIN
#define INT_FAST16_MIN    INT16_MIN
#define INT_FAST32_MIN    INT32_MIN
#define INT_FAST64_MIN    INT64_MIN

#define INT_FAST8_MAX     INT8_MAX
#define INT_FAST16_MAX    INT16_MAX
#define INT_FAST32_MAX    INT32_MAX
#define INT_FAST64_MAX    INT64_MAX

#define UINT_FAST8_MAX    UINT8_MAX
#define UINT_FAST16_MAX   UINT16_MAX
#define UINT_FAST32_MAX   UINT32_MAX
#define UINT_FAST64_MAX   UINT64_MAX

/* 7.18.2.4 Limits of integer types capable of holding object pointers */
#if defined(__LP64__)
#define INTPTR_MIN        INT64_MIN
#define INTPTR_MAX        INT64_MAX
#define UINTPTR_MAX       UINT64_MAX
#else
#define INTPTR_MIN        INT32_MIN
#define INTPTR_MAX        INT32_MAX
#define UINTPTR_MAX       UINT32_MAX
#endif

/* 7.18.2.5 Limits of greatest-width integer types */
#define INTMAX_MIN        INT64_MIN
#define INTMAX_MAX        INT64_MAX

#define UINTMAX_MAX       UINT64_MAX

/* 7.18.3 "Other" */
#if defined(__LP64__)
#define PTRDIFF_MIN       INT64_MIN
#define PTRDIFF_MAX       INT64_MAX
#else
#define PTRDIFF_MIN       INT32_MIN
#define PTRDIFF_MAX       INT32_MAX
#endif
/* We have no sig_atomic_t yet, so no SIG_ATOMIC_{MIN,MAX}.
   Should end up being {-127,127} or {0,255} ... or bigger.
   My bet would be on one of {U}INT32_{MIN,MAX}. */

#define SIZE_MAX          UINT32_MAX

#ifndef WCHAR_MAX
#define WCHAR_MAX         INT32_MAX
#endif

/* We have no wint_t yet, so no WINT_{MIN,MAX}.
   Should end up being {U}INT32_{MIN,MAX}, depending.  */


#endif /* if C++, then __STDC_LIMIT_MACROS enables the above macros */

/* "C++ implementations should define these macros only when
 *  __STDC_CONSTANT_MACROS is defined before <stdint.h> is included."
 */ 
#if (! defined(__cplusplus)) || defined(__STDC_CONSTANT_MACROS)

/* 7.18.4 Macros for integer constants */
#define INT8_C(v)    ((int8_t)v)
#define INT16_C(v)   ((int16_t)v)
#define INT32_C(v)   (v ## L)
#define INT64_C(v)   (v ## LL)

#define UINT8_C(v)   ((uint8_t)v)
#define UINT16_C(v)  ((uint16_t)v)
#define UINT32_C(v)  (v ## UL)
#define UINT64_C(v)  (v ## ULL)

#define INTMAX_C(v)  (v ## LL)
#define UINTMAX_C(v) (v ## ULL)

#endif /* if C++, then __STDC_CONSTANT_MACROS enables the above macros */

#endif /* _STDINT_H_ */
Commit	Line	Data
1c79356b	1	/*
2d21ac55	2	* Copyright (c) 2000-2007 Apple Inc. All rights reserved.
1c79356b A	3	*
	4	* We build on <machine/types.h> rather than <sys/types.h> in order to
	5	* minimize the global namespace pollution (i.e., we'd like to define
	6	* only those identifiers that the C standard mandates should be
	7	* defined by <stdint.h>). Using <machine/types.h> means that (at
	8	* least as of January 2001) all of the extra macros that do get
	9	* #defined by #include'ing <stdint.h> are in the implementor's
	10	* namespace ("_[A-Z]." or "__.").
	11	*
	12	* The reason that we do #include the relevant ...types.h instead of
	13	* creating several "competing" typedefs is to make header collisions
	14	* less likely during the transition to C99.
	15	*
	16	* Caveat: There are still five extra typedef's defined by doing it
	17	* this way: "u_int{8,16,32,64}_t" and "register_t". Might be
	18	* fixable via pre- and post- #defines, but probably not worth it.
	19	*/
	20
	21	#ifndef _STDINT_H_
	22	#define _STDINT_H_
	23
	24	#include <machine/types.h>
	25
	26	/* from ISO/IEC 988:1999 spec */
	27
	28	/* 7.18.1.1 Exact-width integer types */
	29	/* int8_t is defined in <machine/types.h> */
	30	/* int16_t is defined in <machine/types.h> */
	31	/* int32_t is defined in <machine/types.h> */
	32	/* int64_t is defined in <machine/types.h> */
	33	typedef u_int8_t uint8_t; /* u_int8_t is defined in <machine/types.h> */
	34	typedef u_int16_t uint16_t; /* u_int16_t is defined in <machine/types.h> */
	35	typedef u_int32_t uint32_t; /* u_int32_t is defined in <machine/types.h> */
	36	typedef u_int64_t uint64_t; /* u_int64_t is defined in <machine/types.h> */
	37
	38
	39	/* 7.18.1.2 Minumun-width integer types */
	40	typedef int8_t int_least8_t;
	41	typedef int16_t int_least16_t;
	42	typedef int32_t int_least32_t;
	43	typedef int64_t int_least64_t;
	44	typedef uint8_t uint_least8_t;
	45	typedef uint16_t uint_least16_t;
	46	typedef uint32_t uint_least32_t;
	47	typedef uint64_t uint_least64_t;
	48
	49
	50	/* 7.18.1.3 Fastest-width integer types */
	51	typedef int8_t int_fast8_t;
	52	typedef int16_t int_fast16_t;
	53	typedef int32_t int_fast32_t;
	54	typedef int64_t int_fast64_t;
	55	typedef uint8_t uint_fast8_t;
	56	typedef uint16_t uint_fast16_t;
	57	typedef uint32_t uint_fast32_t;
	58	typedef uint64_t uint_fast64_t;
	59
	60
	61	/* 7.18.1.4 Integer types capable of hgolding object pointers */
	62	/* intptr_t is defined in <machine/types.h> */
	63	/* uintptr_t is defined in <machine/types.h> */
	64
	65
	66	/* 7.18.1.5 Greatest-width integer types */
67	typedef long long intmax_t;
68	typedef unsigned long long uintmax_t;
69
70
71	/* "C++ implementations should define these macros only when
72	* __STDC_LIMIT_MACROS is defined before <stdint.h> is included."
73	* In other words, if C++, then __STDC_LIMIT_MACROS enables the
74	* macros below. (Note that there also exists a different enabling
75	* macro (__STDC_CONSTANT_MACROS) for the last few, below.)
76	*/
77	#if (! defined(__cplusplus)) \|\| defined(__STDC_LIMIT_MACROS)
78
79
80	/* 7.18.2 Limits of specified-width integer types:
81	* These #defines specify the minimum and maximum limits
82	* of each of the types declared above.
83	*/
84
85
86	/* 7.18.2.1 Limits of exact-width integer types */
2d21ac55 A	87	#define INT8_MIN (-127-1)
	88	#define INT16_MIN (-32767-1)
	89	#define INT32_MIN (-2147483647-1)
	90	#define INT64_MIN (-9223372036854775807LL-1LL)
1c79356b A	91
	92	#define INT8_MAX +127
	93	#define INT16_MAX +32767
	94	#define INT32_MAX +2147483647
	95	#define INT64_MAX +9223372036854775807LL
	96
	97	#define UINT8_MAX 255
	98	#define UINT16_MAX 65535
	99	#define UINT32_MAX 4294967295U
	100	#define UINT64_MAX 18446744073709551615ULL
	101
	102	/* 7.18.2.2 Limits of minimum-width integer types */
	103	#define INT_LEAST8_MIN INT8_MIN
	104	#define INT_LEAST16_MIN INT16_MIN
	105	#define INT_LEAST32_MIN INT32_MIN
	106	#define INT_LEAST64_MIN INT64_MIN
	107
	108	#define INT_LEAST8_MAX INT8_MAX
	109	#define INT_LEAST16_MAX INT16_MAX
	110	#define INT_LEAST32_MAX INT32_MAX
	111	#define INT_LEAST64_MAX INT64_MAX
	112
	113	#define UINT_LEAST8_MAX UINT8_MAX
	114	#define UINT_LEAST16_MAX UINT16_MAX
	115	#define UINT_LEAST32_MAX UINT32_MAX
	116	#define UINT_LEAST64_MAX UINT64_MAX
	117
	118	/* 7.18.2.3 Limits of fastest minimum-width integer types */
	119	#define INT_FAST8_MIN INT8_MIN
	120	#define INT_FAST16_MIN INT16_MIN
	121	#define INT_FAST32_MIN INT32_MIN
	122	#define INT_FAST64_MIN INT64_MIN
	123
	124	#define INT_FAST8_MAX INT8_MAX
	125	#define INT_FAST16_MAX INT16_MAX
	126	#define INT_FAST32_MAX INT32_MAX
	127	#define INT_FAST64_MAX INT64_MAX
	128
	129	#define UINT_FAST8_MAX UINT8_MAX
	130	#define UINT_FAST16_MAX UINT16_MAX
	131	#define UINT_FAST32_MAX UINT32_MAX
	132	#define UINT_FAST64_MAX UINT64_MAX
	133
	134	/* 7.18.2.4 Limits of integer types capable of holding object pointers */
2d21ac55 A	135	#if defined(__LP64__)
	136	#define INTPTR_MIN INT64_MIN
	137	#define INTPTR_MAX INT64_MAX
	138	#define UINTPTR_MAX UINT64_MAX
	139	#else
1c79356b A	140	#define INTPTR_MIN INT32_MIN
1c79356b A	141	#define INTPTR_MAX INT32_MAX
1c79356b	142	#define UINTPTR_MAX UINT32_MAX
2d21ac55	143	#endif
1c79356b A	144
	145	/* 7.18.2.5 Limits of greatest-width integer types */
	146	#define INTMAX_MIN INT64_MIN
	147	#define INTMAX_MAX INT64_MAX
	148
	149	#define UINTMAX_MAX UINT64_MAX
	150
	151	/* 7.18.3 "Other" */
2d21ac55 A	152	#if defined(__LP64__)
	153	#define PTRDIFF_MIN INT64_MIN
	154	#define PTRDIFF_MAX INT64_MAX
	155	#else
1c79356b A	156	#define PTRDIFF_MIN INT32_MIN
1c79356b A	157	#define PTRDIFF_MAX INT32_MAX
2d21ac55	158	#endif
1c79356b A	159	/* We have no sig_atomic_t yet, so no SIG_ATOMIC_{MIN,MAX}.
	160	Should end up being {-127,127} or {0,255} ... or bigger.
	161	My bet would be on one of {U}INT32_{MIN,MAX}. */
	162
	163	#define SIZE_MAX UINT32_MAX
	164
316670eb	165	#ifndef WCHAR_MAX
1c79356b	166	#define WCHAR_MAX INT32_MAX
316670eb	167	#endif
1c79356b A	168
	169	/* We have no wint_t yet, so no WINT_{MIN,MAX}.
	170	Should end up being {U}INT32_{MIN,MAX}, depending. */
	171
	172
	173	#endif /* if C++, then __STDC_LIMIT_MACROS enables the above macros */
	174
	175	/* "C++ implementations should define these macros only when
	176	* __STDC_CONSTANT_MACROS is defined before <stdint.h> is included."
	177	*/
	178	#if (! defined(__cplusplus)) \|\| defined(__STDC_CONSTANT_MACROS)
	179
	180	/* 7.18.4 Macros for integer constants */
	181	#define INT8_C(v) ((int8_t)v)
	182	#define INT16_C(v) ((int16_t)v)
	183	#define INT32_C(v) (v ## L)
	184	#define INT64_C(v) (v ## LL)
	185
	186	#define UINT8_C(v) ((uint8_t)v)
	187	#define UINT16_C(v) ((uint16_t)v)
	188	#define UINT32_C(v) (v ## UL)
	189	#define UINT64_C(v) (v ## ULL)
	190
	191	#define INTMAX_C(v) (v ## LL)
	192	#define UINTMAX_C(v) (v ## ULL)
	193
	194	#endif /* if C++, then __STDC_CONSTANT_MACROS enables the above macros */
	195
	196	#endif /* _STDINT_H_ */