reactos/include/crt/stdint.h

   1 /* ISO C9x  7.18  Integer types <stdint.h>
   2  * Based on ISO/IEC SC22/WG14 9899 Committee draft (SC22 N2794)
   3  *
   4  *  THIS SOFTWARE IS NOT COPYRIGHTED
   5  *
   6  *  Contributor: Danny Smith <danny_r_smith_2001@yahoo.co.nz>
   7  *
   8  *  This source code is offered for use in the public domain. You may
   9  *  use, modify or distribute it freely.
  10  *
  11  *  This code is distributed in the hope that it will be useful but
  12  *  WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
  13  *  DISCLAIMED. This includes but is not limited to warranties of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  15  *
  16  *  Date: 2000-12-02
  17  */
  18
  19
  20 #ifndef _STDINT_H
  21 #define _STDINT_H
  22 #define __need_wint_t
  23 #define __need_wchar_t
  24 #include <stddef.h>
  25
  26 /* 7.18.1.1  Exact-width integer types */
  27 typedef signed char int8_t;
  28 typedef unsigned char   uint8_t;
  29 typedef short  int16_t;
  30 typedef unsigned short  uint16_t;
  31 typedef int  int32_t;
  32 typedef unsigned   uint32_t;
  33 typedef long long  int64_t;
  34 typedef unsigned long long   uint64_t;
  35
  36 /* 7.18.1.2  Minimum-width integer types */
  37 typedef signed char int_least8_t;
  38 typedef unsigned char   uint_least8_t;
  39 typedef short  int_least16_t;
  40 typedef unsigned short  uint_least16_t;
  41 typedef int  int_least32_t;
  42 typedef unsigned   uint_least32_t;
  43 typedef long long  int_least64_t;
  44 typedef unsigned long long   uint_least64_t;
  45
  46 /*  7.18.1.3  Fastest minimum-width integer types
  47  *  Not actually guaranteed to be fastest for all purposes
  48  *  Here we use the exact-width types for 8 and 16-bit ints.
  49  */
  50 typedef char int_fast8_t;
  51 typedef unsigned char uint_fast8_t;
  52 typedef short  int_fast16_t;
  53 typedef unsigned short  uint_fast16_t;
  54 typedef int  int_fast32_t;
  55 typedef unsigned  int  uint_fast32_t;
  56 typedef long long  int_fast64_t;
  57 typedef unsigned long long   uint_fast64_t;
  58
  59 /* 7.18.1.4  Integer types capable of holding object pointers */
  60
  61 #ifndef _INTPTR_T_DEFINED
  62 #define _INTPTR_T_DEFINED
  63 #ifdef _WIN64
  64   typedef __int64 intptr_t;
  65 #else
  66   typedef int intptr_t;
  67 #endif
  68 #endif
  69
  70 #ifndef _UINTPTR_T_DEFINED
  71 #define _UINTPTR_T_DEFINED
  72 #ifdef _WIN64
  73   typedef unsigned __int64 uintptr_t;
  74 #else
  75   typedef unsigned int uintptr_t;
  76 #endif
  77 #endif
  78
  79 /* 7.18.1.5  Greatest-width integer types */
  80 typedef long long  intmax_t;
  81 typedef unsigned long long uintmax_t;
  82
  83 /* 7.18.2  Limits of specified-width integer types */
  84 #if !defined ( __cplusplus) || defined (__STDC_LIMIT_MACROS)
  85
  86 /* 7.18.2.1  Limits of exact-width integer types */
  87 #define INT8_MIN (-128)
  88 #define INT16_MIN (-32768)
  89 #define INT32_MIN (-2147483647 - 1)
  90 #define INT64_MIN  (-9223372036854775807LL - 1)
  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 0xff /* 255U */
  98 #define UINT16_MAX 0xffff /* 65535U */
  99 #define UINT32_MAX 0xffffffff  /* 4294967295U */
 100 #define UINT64_MAX 0xffffffffffffffffULL /* 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
 135     object pointers */
 136 #ifdef _WIN64
 137 #define INTPTR_MIN INT64_MIN
 138 #define INTPTR_MAX INT64_MAX
 139 #define UINTPTR_MAX UINT64_MAX
 140 #else
 141 #define INTPTR_MIN INT32_MIN
 142 #define INTPTR_MAX INT32_MAX
 143 #define UINTPTR_MAX UINT32_MAX
 144 #endif
 145
 146 /* 7.18.2.5  Limits of greatest-width integer types */
 147 #define INTMAX_MIN INT64_MIN
 148 #define INTMAX_MAX INT64_MAX
 149 #define UINTMAX_MAX UINT64_MAX
 150
 151 /* 7.18.3  Limits of other integer types */
 152 #define PTRDIFF_MIN INTPTR_MIN
 153 #define PTRDIFF_MAX INTPTR_MAX
 154
 155 #define SIG_ATOMIC_MIN INTPTR_MIN
 156 #define SIG_ATOMIC_MAX INTPTR_MAX
 157
 158 #define SIZE_MAX UINTPTR_MAX
 159
 160 #ifndef WCHAR_MIN  /* also in wchar.h */
 161 #define WCHAR_MIN 0
 162 #define WCHAR_MAX 0xffff /* UINT16_MAX */
 163 #endif
 164
 165 /*
 166  * wint_t is unsigned short for compatibility with MS runtime
 167  */
 168 #define WINT_MIN 0
 169 #define WINT_MAX 0xffff /* UINT16_MAX */
 170
 171 #endif /* !defined ( __cplusplus) || defined __STDC_LIMIT_MACROS */
 172
 173
 174 /* 7.18.4  Macros for integer constants */
 175 #if !defined ( __cplusplus) || defined (__STDC_CONSTANT_MACROS)
 176
 177 /* 7.18.4.1  Macros for minimum-width integer constants
 178
 179     Accoding to Douglas Gwyn <gwyn@arl.mil>:
 180         "This spec was changed in ISO/IEC 9899:1999 TC1; in ISO/IEC
 181         9899:1999 as initially published, the expansion was required
 182         to be an integer constant of precisely matching type, which
 183         is impossible to accomplish for the shorter types on most
 184         platforms, because C99 provides no standard way to designate
 185         an integer constant with width less than that of type int.
 186         TC1 changed this to require just an integer constant
 187         *expression* with *promoted* type."
 188 */
 189
 190 #define INT8_C(val) ((int8_t) + (val))
 191 #define UINT8_C(val) ((uint8_t) + (val##U))
 192 #define INT16_C(val) ((int16_t) + (val))
 193 #define UINT16_C(val) ((uint16_t) + (val##U))
 194
 195 #define INT32_C(val) val##L
 196 #define UINT32_C(val) val##UL
 197 #define INT64_C(val) val##LL
 198 #define UINT64_C(val) val##ULL
 199
 200 /* 7.18.4.2  Macros for greatest-width integer constants */
 201 #define INTMAX_C(val)  INT64_C(val)
 202 #define UINTMAX_C(val) UINT64_C(val)
 203
 204 #endif  /* !defined ( __cplusplus) || defined __STDC_CONSTANT_MACROS */
 205
 206 #endif