stdint.h 7.5 KB

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  1. // ISO C9x compliant stdint.h for Microsoft Visual Studio
  2. // Based on ISO/IEC 9899:TC2 Committee draft (May 6, 2005) WG14/N1124
  3. //
  4. // Copyright (c) 2006-2008 Alexander Chemeris
  5. //
  6. // Redistribution and use in source and binary forms, with or without
  7. // modification, are permitted provided that the following conditions are met:
  8. //
  9. // 1. Redistributions of source code must retain the above copyright notice,
  10. // this list of conditions and the following disclaimer.
  11. //
  12. // 2. Redistributions in binary form must reproduce the above copyright
  13. // notice, this list of conditions and the following disclaimer in the
  14. // documentation and/or other materials provided with the distribution.
  15. //
  16. // 3. The name of the author may be used to endorse or promote products
  17. // derived from this software without specific prior written permission.
  18. //
  19. // THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
  20. // WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  21. // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
  22. // EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  23. // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  24. // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  25. // OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  26. // WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  27. // OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  28. // ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29. //
  30. ///////////////////////////////////////////////////////////////////////////////
  31. #ifndef _MSC_VER // [
  32. #error "Use this header only with Microsoft Visual C++ compilers!"
  33. #endif // _MSC_VER ]
  34. #ifndef _MSC_STDINT_H_ // [
  35. #define _MSC_STDINT_H_
  36. #if _MSC_VER > 1000
  37. #pragma once
  38. #endif
  39. #include <limits.h>
  40. // For Visual Studio 6 in C++ mode and for many Visual Studio versions when
  41. // compiling for ARM we should wrap <wchar.h> include with 'extern "C++" {}'
  42. // or compiler give many errors like this:
  43. // error C2733: second C linkage of overloaded function 'wmemchr' not allowed
  44. #ifdef __cplusplus
  45. extern "C" {
  46. #endif
  47. # include <wchar.h>
  48. #ifdef __cplusplus
  49. }
  50. #endif
  51. // Define _W64 macros to mark types changing their size, like intptr_t.
  52. #ifndef _W64
  53. # if !defined(__midl) && (defined(_X86_) || defined(_M_IX86)) && _MSC_VER >= 1300
  54. # define _W64 __w64
  55. # else
  56. # define _W64
  57. # endif
  58. #endif
  59. // 7.18.1 Integer types
  60. // 7.18.1.1 Exact-width integer types
  61. // Visual Studio 6 and Embedded Visual C++ 4 doesn't
  62. // realize that, e.g. char has the same size as __int8
  63. // so we give up on __intX for them.
  64. #if (_MSC_VER < 1300)
  65. typedef signed char int8_t;
  66. typedef signed short int16_t;
  67. typedef signed int int32_t;
  68. typedef unsigned char uint8_t;
  69. typedef unsigned short uint16_t;
  70. typedef unsigned int uint32_t;
  71. #else
  72. typedef signed __int8 int8_t;
  73. typedef signed __int16 int16_t;
  74. typedef signed __int32 int32_t;
  75. typedef unsigned __int8 uint8_t;
  76. typedef unsigned __int16 uint16_t;
  77. typedef unsigned __int32 uint32_t;
  78. #endif
  79. typedef signed __int64 int64_t;
  80. typedef unsigned __int64 uint64_t;
  81. // 7.18.1.2 Minimum-width integer types
  82. typedef int8_t int_least8_t;
  83. typedef int16_t int_least16_t;
  84. typedef int32_t int_least32_t;
  85. typedef int64_t int_least64_t;
  86. typedef uint8_t uint_least8_t;
  87. typedef uint16_t uint_least16_t;
  88. typedef uint32_t uint_least32_t;
  89. typedef uint64_t uint_least64_t;
  90. // 7.18.1.3 Fastest minimum-width integer types
  91. typedef int8_t int_fast8_t;
  92. typedef int16_t int_fast16_t;
  93. typedef int32_t int_fast32_t;
  94. typedef int64_t int_fast64_t;
  95. typedef uint8_t uint_fast8_t;
  96. typedef uint16_t uint_fast16_t;
  97. typedef uint32_t uint_fast32_t;
  98. typedef uint64_t uint_fast64_t;
  99. // 7.18.1.4 Integer types capable of holding object pointers
  100. #ifdef _WIN64 // [
  101. typedef signed __int64 intptr_t;
  102. typedef unsigned __int64 uintptr_t;
  103. #else // _WIN64 ][
  104. typedef _W64 signed int intptr_t;
  105. typedef _W64 unsigned int uintptr_t;
  106. #endif // _WIN64 ]
  107. // 7.18.1.5 Greatest-width integer types
  108. typedef int64_t intmax_t;
  109. typedef uint64_t uintmax_t;
  110. // 7.18.2 Limits of specified-width integer types
  111. #if !defined(__cplusplus) || defined(__STDC_LIMIT_MACROS) // [ See footnote 220 at page 257 and footnote 221 at page 259
  112. // 7.18.2.1 Limits of exact-width integer types
  113. #define INT8_MIN ((int8_t)_I8_MIN)
  114. #define INT8_MAX _I8_MAX
  115. #define INT16_MIN ((int16_t)_I16_MIN)
  116. #define INT16_MAX _I16_MAX
  117. #define INT32_MIN ((int32_t)_I32_MIN)
  118. #define INT32_MAX _I32_MAX
  119. #define INT64_MIN ((int64_t)_I64_MIN)
  120. #define INT64_MAX _I64_MAX
  121. #define UINT8_MAX _UI8_MAX
  122. #define UINT16_MAX _UI16_MAX
  123. #define UINT32_MAX _UI32_MAX
  124. #define UINT64_MAX _UI64_MAX
  125. // 7.18.2.2 Limits of minimum-width integer types
  126. #define INT_LEAST8_MIN INT8_MIN
  127. #define INT_LEAST8_MAX INT8_MAX
  128. #define INT_LEAST16_MIN INT16_MIN
  129. #define INT_LEAST16_MAX INT16_MAX
  130. #define INT_LEAST32_MIN INT32_MIN
  131. #define INT_LEAST32_MAX INT32_MAX
  132. #define INT_LEAST64_MIN INT64_MIN
  133. #define INT_LEAST64_MAX INT64_MAX
  134. #define UINT_LEAST8_MAX UINT8_MAX
  135. #define UINT_LEAST16_MAX UINT16_MAX
  136. #define UINT_LEAST32_MAX UINT32_MAX
  137. #define UINT_LEAST64_MAX UINT64_MAX
  138. // 7.18.2.3 Limits of fastest minimum-width integer types
  139. #define INT_FAST8_MIN INT8_MIN
  140. #define INT_FAST8_MAX INT8_MAX
  141. #define INT_FAST16_MIN INT16_MIN
  142. #define INT_FAST16_MAX INT16_MAX
  143. #define INT_FAST32_MIN INT32_MIN
  144. #define INT_FAST32_MAX INT32_MAX
  145. #define INT_FAST64_MIN INT64_MIN
  146. #define INT_FAST64_MAX INT64_MAX
  147. #define UINT_FAST8_MAX UINT8_MAX
  148. #define UINT_FAST16_MAX UINT16_MAX
  149. #define UINT_FAST32_MAX UINT32_MAX
  150. #define UINT_FAST64_MAX UINT64_MAX
  151. // 7.18.2.4 Limits of integer types capable of holding object pointers
  152. #ifdef _WIN64 // [
  153. # define INTPTR_MIN INT64_MIN
  154. # define INTPTR_MAX INT64_MAX
  155. # define UINTPTR_MAX UINT64_MAX
  156. #else // _WIN64 ][
  157. # define INTPTR_MIN INT32_MIN
  158. # define INTPTR_MAX INT32_MAX
  159. # define UINTPTR_MAX UINT32_MAX
  160. #endif // _WIN64 ]
  161. // 7.18.2.5 Limits of greatest-width integer types
  162. #define INTMAX_MIN INT64_MIN
  163. #define INTMAX_MAX INT64_MAX
  164. #define UINTMAX_MAX UINT64_MAX
  165. // 7.18.3 Limits of other integer types
  166. #ifdef _WIN64 // [
  167. # define PTRDIFF_MIN _I64_MIN
  168. # define PTRDIFF_MAX _I64_MAX
  169. #else // _WIN64 ][
  170. # define PTRDIFF_MIN _I32_MIN
  171. # define PTRDIFF_MAX _I32_MAX
  172. #endif // _WIN64 ]
  173. #define SIG_ATOMIC_MIN INT_MIN
  174. #define SIG_ATOMIC_MAX INT_MAX
  175. #ifndef SIZE_MAX // [
  176. # ifdef _WIN64 // [
  177. # define SIZE_MAX _UI64_MAX
  178. # else // _WIN64 ][
  179. # define SIZE_MAX _UI32_MAX
  180. # endif // _WIN64 ]
  181. #endif // SIZE_MAX ]
  182. // WCHAR_MIN and WCHAR_MAX are also defined in <wchar.h>
  183. #ifndef WCHAR_MIN // [
  184. # define WCHAR_MIN 0
  185. #endif // WCHAR_MIN ]
  186. #ifndef WCHAR_MAX // [
  187. # define WCHAR_MAX _UI16_MAX
  188. #endif // WCHAR_MAX ]
  189. #define WINT_MIN 0
  190. #define WINT_MAX _UI16_MAX
  191. #endif // __STDC_LIMIT_MACROS ]
  192. // 7.18.4 Limits of other integer types
  193. #if !defined(__cplusplus) || defined(__STDC_CONSTANT_MACROS) // [ See footnote 224 at page 260
  194. // 7.18.4.1 Macros for minimum-width integer constants
  195. #define INT8_C(val) val##i8
  196. #define INT16_C(val) val##i16
  197. #define INT32_C(val) val##i32
  198. #define INT64_C(val) val##i64
  199. #define UINT8_C(val) val##ui8
  200. #define UINT16_C(val) val##ui16
  201. #define UINT32_C(val) val##ui32
  202. #define UINT64_C(val) val##ui64
  203. // 7.18.4.2 Macros for greatest-width integer constants
  204. #define INTMAX_C INT64_C
  205. #define UINTMAX_C UINT64_C
  206. #endif // __STDC_CONSTANT_MACROS ]
  207. #endif // _MSC_STDINT_H_ ]