src/common/torint.h

   1 /* Copyright 2003 Roger Dingledine */
   2 /* See LICENSE for licensing information */
   3 /* $Id$ */
   4
   5 /**
   6  * \file torint.h
   7  * \brief Header file to define uint32_t and friends
   8  **/
   9
  10 #ifndef __TORINT_H
  11 #define __TORINT_H
  12 #define TORINT_H_ID "$Id$"
  13
  14 #include "orconfig.h"
  15
  16 #ifdef HAVE_STDINT_H
  17 #include <stdint.h>
  18 #endif
  19 #ifdef HAVE_SYS_TYPES_H
  20 #include <sys/types.h>
  21 #endif
  22 #ifdef HAVE_LIMITS_H
  23 #include <limits.h>
  24 #endif
  25 #ifdef HAVE_SYS_LIMITS_H
  26 #include <sys/limits.h>
  27 #endif
  28 #ifdef HAVE_MACHINE_LIMITS_H
  29 #ifndef __FreeBSD__
  30   /* FreeBSD has a bug where it complains that this file is obsolete,
  31      and I should migrate to using sys/limits. It complains even when
  32      I include both. */
  33 #include <machine/limits.h>
  34 #endif
  35 #endif
  36
  37 #if (SIZEOF_INT8_T != 0)
  38 #define HAVE_INT8_T
  39 #endif
  40 #if (SIZEOF_INT16_T != 0)
  41 #define HAVE_INT16_T
  42 #endif
  43 #if (SIZEOF_INT32_T != 0)
  44 #define HAVE_INT32_T
  45 #endif
  46 #if (SIZEOF_INT64_T != 0)
  47 #define HAVE_INT64_T
  48 #endif
  49 #if (SIZEOF_UINT8_T != 0)
  50 #define HAVE_UINT8_T
  51 #endif
  52 #if (SIZEOF_UINT16_T != 0)
  53 #define HAVE_UINT16_T
  54 #endif
  55 #if (SIZEOF_UINT32_T != 0)
  56 #define HAVE_UINT32_T
  57 #endif
  58 #if (SIZEOF_UINT64_T != 0)
  59 #define HAVE_UINT64_T
  60 #endif
  61 #if (SIZEOF_INTPTR_T != 0)
  62 #define HAVE_INTPTR_T
  63 #endif
  64 #if (SIZEOF_UINTPTR_T != 0)
  65 #define HAVE_UINTPTR_T
  66 #endif
  67
  68 #if (SIZEOF_CHAR == 1)
  69 #ifndef HAVE_INT8_T
  70 typedef signed char int8_t;
  71 #define HAVE_INT8_T
  72 #endif
  73 #ifndef HAVE_UINT8_T
  74 typedef unsigned char uint8_t;
  75 #define HAVE_UINT8_T
  76 #endif
  77 #endif
  78
  79 #if (SIZEOF_SHORT == 2)
  80 #ifndef HAVE_INT16_T
  81 typedef signed short int16_t;
  82 #define HAVE_INT16_T
  83 #endif
  84 #ifndef HAVE_UINT16_T
  85 typedef unsigned short uint16_t;
  86 #define HAVE_UINT16_T
  87 #endif
  88 #endif
  89
  90 #if (SIZEOF_INT == 2)
  91 #ifndef HAVE_INT16_T
  92 typedef signed int int16_t;
  93 #define HAVE_INT16_T
  94 #endif
  95 #ifndef HAVE_UINT16_T
  96 typedef unsigned int uint16_t;
  97 #define HAVE_UINT16_T
  98 #endif
  99 #elif (SIZEOF_INT == 4)
 100 #ifndef HAVE_INT32_T
 101 typedef signed int int32_t;
 102 #define HAVE_INT32_T
 103 #endif
 104 #ifndef HAVE_UINT32_T
 105 typedef unsigned int uint32_t;
 106 #define HAVE_UINT32_T
 107 #endif
 108 #ifndef UINT32_MAX
 109 #define UINT32_MAX 0xffffffffu
 110 #endif
 111 #endif
 112
 113 #if (SIZEOF_LONG == 4)
 114 #ifndef HAVE_INT32_T
 115 typedef signed long int32_t;
 116 #define HAVE_INT32_T
 117 #endif
 118 #ifndef HAVE_UINT32_T
 119 typedef unsigned long uint32_t;
 120 #define HAVE_UINT32_T
 121 #ifndef UINT32_MAX
 122 #define UINT32_MAX 0xfffffffful
 123 #endif
 124 #endif
 125 #elif (SIZEOF_LONG == 8)
 126 #ifndef HAVE_INT64_T
 127 typedef signed long int64_t;
 128 #define HAVE_INT64_T
 129 #endif
 130 #ifndef HAVE_UINT32_T
 131 typedef unsigned long uint64_t;
 132 #define HAVE_UINT32_T
 133 #endif
 134 #ifndef UINT64_MAX
 135 #define UINT64_MAX 0xfffffffffffffffful
 136 #endif
 137 #endif
 138
 139 #if (SIZEOF_LONG_LONG == 8)
 140 #ifndef HAVE_INT64_T
 141 typedef signed long long int64_t;
 142 #define HAVE_INT64_T
 143 #endif
 144 #ifndef HAVE_UINT64_T
 145 typedef unsigned long long uint64_t;
 146 #define HAVE_UINT64_T
 147 #endif
 148 #ifndef UINT64_MAX
 149 #define UINT64_MAX 0xffffffffffffffffull
 150 #endif
 151 #endif
 152
 153 #if (SIZEOF___INT64 == 8)
 154 #ifndef HAVE_INT64_T
 155 typedef signed __int64 int64_t;
 156 #define HAVE_INT64_T
 157 #endif
 158 #ifndef HAVE_UINT64_T
 159 typedef unsigned __int64 uint64_t;
 160 #define HAVE_UINT64_T
 161 #endif
 162 #ifndef UINT64_MAX
 163 #define UINT64_MAX 0xffffffffffffffffui64
 164 #endif
 165 #endif
 166
 167 #if (SIZEOF_VOID_P > 4 && SIZEOF_VOID_P <= 8)
 168 #ifndef HAVE_INTPTR_T
 169 typedef int64_t intptr_t;
 170 #endif
 171 #ifndef HAVE_UINTPTR_T
 172 typedef uint64_t uintptr_t;
 173 #endif
 174 #elif (SIZEOF_VOID_P > 2 && SIZEOF_VOID_P <= 4)
 175 #ifndef HAVE_INTPTR_T
 176 typedef int32_t intptr_t;
 177 #endif
 178 #ifndef HAVE_UINTPTR_T
 179 typedef uint32_t uintptr_t;
 180 #endif
 181 #else
 182 #error "void * is either >8 bytes or <= 2.  In either case, I am confused."
 183 #endif
 184
 185 #ifndef HAVE_INT8_T
 186 #error "Missing type int8_t"
 187 #endif
 188 #ifndef HAVE_UINT8_T
 189 #error "Missing type uint8_t"
 190 #endif
 191 #ifndef HAVE_INT16_T
 192 #error "Missing type int16_t"
 193 #endif
 194 #ifndef HAVE_UINT16_T
 195 #error "Missing type uint16_t"
 196 #endif
 197 #ifndef HAVE_INT32_T
 198 #error "Missing type int32_t"
 199 #endif
 200 #ifndef HAVE_UINT32_T
 201 #error "Missing type uint32_t"
 202 #endif
 203 #ifndef HAVE_INT64_T
 204 #error "Missing type int64_t"
 205 #endif
 206 #ifndef HAVE_UINT64_T
 207 #error "Missing type uint64_t"
 208 #endif
 209
 210 /* XXXX This assumes a sane (2's-complement) representation.  But if you
 211  *  aren't 2's complement, and you don't define LONG_MAX, then you're so
 212  *  bizarre that I want nothing to do with you. */
 213 #ifndef LONG_MAX
 214 #if (SIZEOF_LONG == 4)
 215 #define LONG_MAX 0x7fffffffL
 216 #elif (SIZEOF_LONG == 8)
 217 #define LONG_MAX 0x7fffffffffffffffL
 218 #else
 219 #error "Can't define LONG_MAX"
 220 #endif
 221 #endif
 222
 223 #ifndef UINT_MAX
 224 #if (SIZEOF_INT == 2)
 225 #define UINT_MAX 0xffffu
 226 #elif (SIZEOF_INT == 4)
 227 #define UINT_MAX 0xffffffffu
 228 #elif (SIZEOF_INT == 8)
 229 #define UINT_MAX 0xffffffffffffffffu
 230 #else
 231 #error "Can't define UINT_MAX"
 232 #endif
 233 #endif
 234
 235 /* Any size_t larger than this amount is likely to be an underflow. */
 236 #define SIZE_T_CEILING (sizeof(char)<<(sizeof(size_t)*8 - 1))
 237
 238 #endif /* __TORINT_H */
 239