Annotation of sys/sys/stdint.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: stdint.h,v 1.4 2006/12/10 22:17:55 deraadt Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 1997, 2005 Todd C. Miller <Todd.Miller@courtesan.com>
! 5: *
! 6: * Permission to use, copy, modify, and distribute this software for any
! 7: * purpose with or without fee is hereby granted, provided that the above
! 8: * copyright notice and this permission notice appear in all copies.
! 9: *
! 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
! 11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
! 12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
! 13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
! 14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
! 15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
! 16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
! 17: */
! 18:
! 19: #ifndef _SYS_STDINT_H_
! 20: #define _SYS_STDINT_H_
! 21:
! 22: #include <sys/cdefs.h>
! 23: #include <machine/_types.h>
! 24:
! 25: #ifndef __BIT_TYPES_DEFINED__
! 26: #define __BIT_TYPES_DEFINED__
! 27: #endif
! 28:
! 29: /* 7.18.1.1 Exact-width integer types (also in sys/types.h) */
! 30: #ifndef _INT8_T_DEFINED_
! 31: #define _INT8_T_DEFINED_
! 32: typedef __int8_t int8_t;
! 33: #endif
! 34:
! 35: #ifndef _UINT8_T_DEFINED_
! 36: #define _UINT8_T_DEFINED_
! 37: typedef __uint8_t uint8_t;
! 38: #endif
! 39:
! 40: #ifndef _INT16_T_DEFINED_
! 41: #define _INT16_T_DEFINED_
! 42: typedef __int16_t int16_t;
! 43: #endif
! 44:
! 45: #ifndef _UINT16_T_DEFINED_
! 46: #define _UINT16_T_DEFINED_
! 47: typedef __uint16_t uint16_t;
! 48: #endif
! 49:
! 50: #ifndef _INT32_T_DEFINED_
! 51: #define _INT32_T_DEFINED_
! 52: typedef __int32_t int32_t;
! 53: #endif
! 54:
! 55: #ifndef _UINT32_T_DEFINED_
! 56: #define _UINT32_T_DEFINED_
! 57: typedef __uint32_t uint32_t;
! 58: #endif
! 59:
! 60: #ifndef _INT64_T_DEFINED_
! 61: #define _INT64_T_DEFINED_
! 62: typedef __int64_t int64_t;
! 63: #endif
! 64:
! 65: #ifndef _UINT64_T_DEFINED_
! 66: #define _UINT64_T_DEFINED_
! 67: typedef __uint64_t uint64_t;
! 68: #endif
! 69:
! 70: /* 7.18.1.2 Minimum-width integer types */
! 71: typedef __int_least8_t int_least8_t;
! 72: typedef __uint_least8_t uint_least8_t;
! 73: typedef __int_least16_t int_least16_t;
! 74: typedef __uint_least16_t uint_least16_t;
! 75: typedef __int_least32_t int_least32_t;
! 76: typedef __uint_least32_t uint_least32_t;
! 77: typedef __int_least64_t int_least64_t;
! 78: typedef __uint_least64_t uint_least64_t;
! 79:
! 80: /* 7.18.1.3 Fastest minimum-width integer types */
! 81: typedef __int_fast8_t int_fast8_t;
! 82: typedef __uint_fast8_t uint_fast8_t;
! 83: typedef __int_fast16_t int_fast16_t;
! 84: typedef __uint_fast16_t uint_fast16_t;
! 85: typedef __int_fast32_t int_fast32_t;
! 86: typedef __uint_fast32_t uint_fast32_t;
! 87: typedef __int_fast64_t int_fast64_t;
! 88: typedef __uint_fast64_t uint_fast64_t;
! 89:
! 90: /* 7.18.1.4 Integer types capable of holding object pointers */
! 91: typedef __intptr_t intptr_t;
! 92: typedef __uintptr_t uintptr_t;
! 93:
! 94: /* 7.18.1.5 Greatest-width integer types */
! 95: typedef __intmax_t intmax_t;
! 96: typedef __uintmax_t uintmax_t;
! 97:
! 98: #if !defined(__cplusplus) || defined(__STDC_LIMIT_MACROS)
! 99: /*
! 100: * 7.18.2 Limits of specified-width integer types.
! 101: *
! 102: * The following object-like macros specify the minimum and maximum limits
! 103: * of integer types corresponding to the typedef names defined above.
! 104: */
! 105:
! 106: /* 7.18.2.1 Limits of exact-width integer types */
! 107: #define INT8_MIN (-0x7f - 1)
! 108: #define INT16_MIN (-0x7fff - 1)
! 109: #define INT32_MIN (-0x7fffffff - 1)
! 110: #define INT64_MIN (-0x7fffffffffffffffLL - 1)
! 111:
! 112: #define INT8_MAX 0x7f
! 113: #define INT16_MAX 0x7fff
! 114: #define INT32_MAX 0x7fffffff
! 115: #define INT64_MAX 0x7fffffffffffffffLL
! 116:
! 117: #define UINT8_MAX 0xff
! 118: #define UINT16_MAX 0xffff
! 119: #define UINT32_MAX 0xffffffffU
! 120: #define UINT64_MAX 0xffffffffffffffffULL
! 121:
! 122: /* 7.18.2.2 Limits of minimum-width integer types */
! 123: #define INT_LEAST8_MIN INT8_MIN
! 124: #define INT_LEAST16_MIN INT16_MIN
! 125: #define INT_LEAST32_MIN INT32_MIN
! 126: #define INT_LEAST64_MIN INT64_MIN
! 127:
! 128: #define INT_LEAST8_MAX INT8_MAX
! 129: #define INT_LEAST16_MAX INT16_MAX
! 130: #define INT_LEAST32_MAX INT32_MAX
! 131: #define INT_LEAST64_MAX INT64_MAX
! 132:
! 133: #define UINT_LEAST8_MAX UINT8_MAX
! 134: #define UINT_LEAST16_MAX UINT16_MAX
! 135: #define UINT_LEAST32_MAX UINT32_MAX
! 136: #define UINT_LEAST64_MAX UINT64_MAX
! 137:
! 138: /* 7.18.2.3 Limits of fastest minimum-width integer types */
! 139: #define INT_FAST8_MIN INT8_MIN
! 140: #define INT_FAST16_MIN INT16_MIN
! 141: #define INT_FAST32_MIN INT32_MIN
! 142: #define INT_FAST64_MIN INT64_MIN
! 143:
! 144: #define INT_FAST8_MAX INT8_MAX
! 145: #define INT_FAST16_MAX INT16_MAX
! 146: #define INT_FAST32_MAX INT32_MAX
! 147: #define INT_FAST64_MAX INT64_MAX
! 148:
! 149: #define UINT_FAST8_MAX UINT8_MAX
! 150: #define UINT_FAST16_MAX UINT16_MAX
! 151: #define UINT_FAST32_MAX UINT32_MAX
! 152: #define UINT_FAST64_MAX UINT64_MAX
! 153:
! 154: /* 7.18.2.4 Limits of integer types capable of holding object pointers */
! 155: #ifdef __LP64__
! 156: #define INTPTR_MIN INT64_MIN
! 157: #define INTPTR_MAX INT64_MAX
! 158: #define UINTPTR_MAX UINT64_MAX
! 159: #else
! 160: #define INTPTR_MIN INT32_MIN
! 161: #define INTPTR_MAX INT32_MAX
! 162: #define UINTPTR_MAX UINT32_MAX
! 163: #endif
! 164:
! 165: /* 7.18.2.5 Limits of greatest-width integer types */
! 166: #define INTMAX_MIN INT64_MIN
! 167: #define INTMAX_MAX INT64_MAX
! 168: #define UINTMAX_MAX UINT64_MAX
! 169:
! 170: /*
! 171: * 7.18.3 Limits of other integer types.
! 172: *
! 173: * The following object-like macros specify the minimum and maximum limits
! 174: * of integer types corresponding to types specified in other standard
! 175: * header files.
! 176: */
! 177:
! 178: /* Limits of ptrdiff_t */
! 179: #define PTRDIFF_MIN INTPTR_MIN
! 180: #define PTRDIFF_MAX INTPTR_MAX
! 181:
! 182: /* Limits of sig_atomic_t */
! 183: #define SIG_ATOMIC_MIN INT32_MIN
! 184: #define SIG_ATOMIC_MAX INT32_MAX
! 185:
! 186: /* Limits of size_t (also in limits.h) */
! 187: #ifndef SIZE_MAX
! 188: #define SIZE_MAX UINTPTR_MAX
! 189: #endif
! 190:
! 191: /* Limits of wchar_t */
! 192: #define WCHAR_MIN INT32_MIN
! 193: #define WCHAR_MAX INT32_MAX
! 194:
! 195: /* Limits of wint_t */
! 196: #define WINT_MIN INT32_MIN
! 197: #define WINT_MAX INT32_MAX
! 198:
! 199: #endif /* __cplusplus || __STDC_LIMIT_MACROS */
! 200:
! 201: #if !defined(__cplusplus) || defined(__STDC_CONSTANT_MACROS)
! 202: /*
! 203: * 7.18.4 Macros for integer constants.
! 204: *
! 205: * The following function-like macros expand to integer constants
! 206: * suitable for initializing objects that have integer types corresponding
! 207: * to types defined in <stdint.h>. The argument in any instance of
! 208: * these macros shall be a decimal, octal, or hexadecimal constant with
! 209: * a value that does not exceed the limits for the corresponding type.
! 210: */
! 211:
! 212: /* 7.18.4.1 Macros for minimum-width integer constants. */
! 213: #define INT8_C(_c) (_c)
! 214: #define INT16_C(_c) (_c)
! 215: #define INT32_C(_c) (_c)
! 216: #define INT64_C(_c) __CONCAT(_c, LL)
! 217:
! 218: #define UINT8_C(_c) (_c)
! 219: #define UINT16_C(_c) (_c)
! 220: #define UINT32_C(_c) __CONCAT(_c, U)
! 221: #define UINT64_C(_c) __CONCAT(_c, ULL)
! 222:
! 223: /* 7.18.4.2 Macros for greatest-width integer constants. */
! 224: #define INTMAX_C(_c) __CONCAT(_c, LL)
! 225: #define UINTMAX_C(_c) __CONCAT(_c, ULL)
! 226:
! 227: #endif /* __cplusplus || __STDC_CONSTANT_MACROS */
! 228:
! 229: #endif /* _SYS_STDINT_H_ */
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