stdint.h 6.1 KB

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  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. #ifndef _STDINT_H
  19. #define _STDINT_H
  20. #define __need_wint_t
  21. #define __need_wchar_t
  22. #include <stddef.h>
  23. /* 7.18.1.1 Exact-width integer types */
  24. typedef signed char int8_t;
  25. typedef unsigned char uint8_t;
  26. typedef short int16_t;
  27. typedef unsigned short uint16_t;
  28. typedef int int32_t;
  29. typedef unsigned uint32_t;
  30. typedef __int64 int64_t;
  31. typedef unsigned __int64 uint64_t;
  32. /* 7.18.1.2 Minimum-width integer types */
  33. typedef signed char int_least8_t;
  34. typedef unsigned char uint_least8_t;
  35. typedef short int_least16_t;
  36. typedef unsigned short uint_least16_t;
  37. typedef int int_least32_t;
  38. typedef unsigned uint_least32_t;
  39. typedef __int64 int_least64_t;
  40. typedef unsigned __int64 uint_least64_t;
  41. /* 7.18.1.3 Fastest minimum-width integer types
  42. * Not actually guaranteed to be fastest for all purposes
  43. * Here we use the exact-width types for 8 and 16-bit ints.
  44. */
  45. typedef char int_fast8_t;
  46. typedef unsigned char uint_fast8_t;
  47. typedef short int_fast16_t;
  48. typedef unsigned short uint_fast16_t;
  49. typedef int int_fast32_t;
  50. typedef unsigned int uint_fast32_t;
  51. typedef __int64 int_fast64_t;
  52. typedef unsigned __int64 uint_fast64_t;
  53. /* 7.18.1.4 Integer types capable of holding object pointers */
  54. /*typedef int intptr_t;
  55. typedef unsigned uintptr_t;*/
  56. /* 7.18.1.5 Greatest-width integer types */
  57. typedef __int64 intmax_t;
  58. typedef unsigned __int64 uintmax_t;
  59. /* 7.18.2 Limits of specified-width integer types */
  60. #if !defined ( __cplusplus) || defined (__STDC_LIMIT_MACROS)
  61. /* 7.18.2.1 Limits of exact-width integer types */
  62. #define INT8_MIN (-128)
  63. #define INT16_MIN (-32768)
  64. #define INT32_MIN (-2147483647 - 1)
  65. #define INT64_MIN (-9223372036854775807LL - 1)
  66. #define INT8_MAX 127
  67. #define INT16_MAX 32767
  68. #define INT32_MAX 2147483647
  69. #define INT64_MAX 9223372036854775807LL
  70. #define UINT8_MAX 0xff /* 255U */
  71. #define UINT16_MAX 0xffff /* 65535U */
  72. #define UINT32_MAX 0xffffffff /* 4294967295U */
  73. #define UINT64_MAX 0xffffffffffffffffULL /* 18446744073709551615ULL */
  74. /* 7.18.2.2 Limits of minimum-width integer types */
  75. #define INT_LEAST8_MIN INT8_MIN
  76. #define INT_LEAST16_MIN INT16_MIN
  77. #define INT_LEAST32_MIN INT32_MIN
  78. #define INT_LEAST64_MIN INT64_MIN
  79. #define INT_LEAST8_MAX INT8_MAX
  80. #define INT_LEAST16_MAX INT16_MAX
  81. #define INT_LEAST32_MAX INT32_MAX
  82. #define INT_LEAST64_MAX INT64_MAX
  83. #define UINT_LEAST8_MAX UINT8_MAX
  84. #define UINT_LEAST16_MAX UINT16_MAX
  85. #define UINT_LEAST32_MAX UINT32_MAX
  86. #define UINT_LEAST64_MAX UINT64_MAX
  87. /* 7.18.2.3 Limits of fastest minimum-width integer types */
  88. #define INT_FAST8_MIN INT8_MIN
  89. #define INT_FAST16_MIN INT16_MIN
  90. #define INT_FAST32_MIN INT32_MIN
  91. #define INT_FAST64_MIN INT64_MIN
  92. #define INT_FAST8_MAX INT8_MAX
  93. #define INT_FAST16_MAX INT16_MAX
  94. #define INT_FAST32_MAX INT32_MAX
  95. #define INT_FAST64_MAX INT64_MAX
  96. #define UINT_FAST8_MAX UINT8_MAX
  97. #define UINT_FAST16_MAX UINT16_MAX
  98. #define UINT_FAST32_MAX UINT32_MAX
  99. #define UINT_FAST64_MAX UINT64_MAX
  100. /* 7.18.2.4 Limits of integer types capable of holding
  101. object pointers */
  102. #if defined(_WIN64) || defined(__LP64__)
  103. #define INTPTR_MIN INT64_MIN
  104. #define INTPTR_MAX INT64_MAX
  105. #define UINTPTR_MAX UINT64_MAX
  106. #else
  107. #define INTPTR_MIN INT32_MIN
  108. #define INTPTR_MAX INT32_MAX
  109. #define UINTPTR_MAX UINT32_MAX
  110. #endif
  111. /* 7.18.2.5 Limits of greatest-width integer types */
  112. #define INTMAX_MIN INT64_MIN
  113. #define INTMAX_MAX INT64_MAX
  114. #define UINTMAX_MAX UINT64_MAX
  115. /* 7.18.3 Limits of other integer types */
  116. #if defined(_WIN64) || defined(__LP64__)
  117. #define PTRDIFF_MIN INT64_MIN
  118. #define PTRDIFF_MAX INT64_MAX
  119. #else
  120. #define PTRDIFF_MIN INT32_MIN
  121. #define PTRDIFF_MAX INT32_MAX
  122. #endif
  123. #define SIG_ATOMIC_MIN INT32_MIN
  124. #define SIG_ATOMIC_MAX INT32_MAX
  125. #ifndef SIZE_MAX
  126. #if defined(_WIN64) || defined(__LP64__)
  127. #define SIZE_MAX UINT64_MAX
  128. #else
  129. #define SIZE_MAX UINT32_MAX
  130. #endif
  131. #endif
  132. #ifndef WCHAR_MIN /* also in wchar.h */
  133. #define WCHAR_MIN 0
  134. #define WCHAR_MAX ((wchar_t)-1) /* UINT16_MAX */
  135. #endif
  136. /*
  137. * wint_t is unsigned short for compatibility with MS runtime
  138. */
  139. #define WINT_MIN 0
  140. #define WINT_MAX ((wint_t)-1) /* UINT16_MAX */
  141. #endif /* !defined ( __cplusplus) || defined __STDC_LIMIT_MACROS */
  142. /* 7.18.4 Macros for integer constants */
  143. #if !defined ( __cplusplus) || defined (__STDC_CONSTANT_MACROS)
  144. /* 7.18.4.1 Macros for minimum-width integer constants
  145. Accoding to Douglas Gwyn <gwyn@arl.mil>:
  146. "This spec was changed in ISO/IEC 9899:1999 TC1; in ISO/IEC
  147. 9899:1999 as initially published, the expansion was required
  148. to be an integer constant of precisely matching type, which
  149. is impossible to accomplish for the shorter types on most
  150. platforms, because C99 provides no standard way to designate
  151. an integer constant with width less than that of type int.
  152. TC1 changed this to require just an integer constant
  153. *expression* with *promoted* type."
  154. The trick used here is from Clive D W Feather.
  155. */
  156. #define INT8_C(val) (INT_LEAST8_MAX-INT_LEAST8_MAX+(val))
  157. #define INT16_C(val) (INT_LEAST16_MAX-INT_LEAST16_MAX+(val))
  158. #define INT32_C(val) (INT_LEAST32_MAX-INT_LEAST32_MAX+(val))
  159. #define INT64_C(val) (INT_LEAST64_MAX-INT_LEAST64_MAX+(val))
  160. #define UINT8_C(val) (UINT_LEAST8_MAX-UINT_LEAST8_MAX+(val))
  161. #define UINT16_C(val) (UINT_LEAST16_MAX-UINT_LEAST16_MAX+(val))
  162. #define UINT32_C(val) (UINT_LEAST32_MAX-UINT_LEAST32_MAX+(val))
  163. #define UINT64_C(val) (UINT_LEAST64_MAX-UINT_LEAST64_MAX+(val))
  164. /* 7.18.4.2 Macros for greatest-width integer constants */
  165. #define INTMAX_C(val) (INTMAX_MAX-INTMAX_MAX+(val))
  166. #define UINTMAX_C(val) (UINTMAX_MAX-UINTMAX_MAX+(val))
  167. #endif /* !defined ( __cplusplus) || defined __STDC_CONSTANT_MACROS */
  168. #endif