stdint.h 6.3 KB

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  1. /**
  2. * This file has no copyright assigned and is placed in the Public Domain.
  3. * This file is part of the mingw-w64 runtime package.
  4. * No warranty is given; refer to the file DISCLAIMER.PD within this package.
  5. */
  6. /* ISO C9x 7.18 Integer types <stdint.h>
  7. * Based on ISO/IEC SC22/WG14 9899 Committee draft (SC22 N2794)
  8. *
  9. * THIS SOFTWARE IS NOT COPYRIGHTED
  10. *
  11. * Contributor: Danny Smith <danny_r_smith_2001@yahoo.co.nz>
  12. *
  13. * This source code is offered for use in the public domain. You may
  14. * use, modify or distribute it freely.
  15. *
  16. * This code is distributed in the hope that it will be useful but
  17. * WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
  18. * DISCLAIMED. This includes but is not limited to warranties of
  19. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  20. *
  21. * Date: 2000-12-02
  22. */
  23. #ifndef _STDINT_H
  24. #define _STDINT_H
  25. #include <crtdefs.h>
  26. #define __need_wint_t
  27. #define __need_wchar_t
  28. #include <stddef.h>
  29. /* 7.18.1.1 Exact-width integer types */
  30. typedef signed char int8_t;
  31. typedef unsigned char uint8_t;
  32. typedef short int16_t;
  33. typedef unsigned short uint16_t;
  34. typedef int int32_t;
  35. typedef unsigned uint32_t;
  36. __MINGW_EXTENSION typedef long long int64_t;
  37. __MINGW_EXTENSION typedef unsigned long long uint64_t;
  38. /* 7.18.1.2 Minimum-width integer types */
  39. typedef signed char int_least8_t;
  40. typedef unsigned char uint_least8_t;
  41. typedef short int_least16_t;
  42. typedef unsigned short uint_least16_t;
  43. typedef int int_least32_t;
  44. typedef unsigned uint_least32_t;
  45. __MINGW_EXTENSION typedef long long int_least64_t;
  46. __MINGW_EXTENSION typedef unsigned long long uint_least64_t;
  47. /* 7.18.1.3 Fastest minimum-width integer types
  48. * Not actually guaranteed to be fastest for all purposes
  49. * Here we use the exact-width types for 8 and 16-bit ints.
  50. */
  51. typedef signed char int_fast8_t;
  52. typedef unsigned char uint_fast8_t;
  53. typedef short int_fast16_t;
  54. typedef unsigned short uint_fast16_t;
  55. typedef int int_fast32_t;
  56. typedef unsigned int uint_fast32_t;
  57. __MINGW_EXTENSION typedef long long int_fast64_t;
  58. __MINGW_EXTENSION typedef unsigned long long uint_fast64_t;
  59. /* 7.18.1.5 Greatest-width integer types */
  60. __MINGW_EXTENSION typedef long long intmax_t;
  61. __MINGW_EXTENSION typedef unsigned long long uintmax_t;
  62. /* 7.18.2 Limits of specified-width integer types */
  63. #if !defined(__cplusplus) || defined(__STDC_LIMIT_MACROS) || \
  64. defined(__GXX_EXPERIMENTAL_CXX0X__) || __cplusplus >= 201103L
  65. /* 7.18.2.1 Limits of exact-width integer types */
  66. #define INT8_MIN (-128)
  67. #define INT16_MIN (-32768)
  68. #define INT32_MIN (-2147483647 - 1)
  69. #define INT64_MIN (-9223372036854775807LL - 1)
  70. #define INT8_MAX 127
  71. #define INT16_MAX 32767
  72. #define INT32_MAX 2147483647
  73. #define INT64_MAX 9223372036854775807LL
  74. #define UINT8_MAX 255
  75. #define UINT16_MAX 65535
  76. #define UINT32_MAX 0xffffffffU /* 4294967295U */
  77. #define UINT64_MAX 0xffffffffffffffffULL /* 18446744073709551615ULL */
  78. /* 7.18.2.2 Limits of minimum-width integer types */
  79. #define INT_LEAST8_MIN INT8_MIN
  80. #define INT_LEAST16_MIN INT16_MIN
  81. #define INT_LEAST32_MIN INT32_MIN
  82. #define INT_LEAST64_MIN INT64_MIN
  83. #define INT_LEAST8_MAX INT8_MAX
  84. #define INT_LEAST16_MAX INT16_MAX
  85. #define INT_LEAST32_MAX INT32_MAX
  86. #define INT_LEAST64_MAX INT64_MAX
  87. #define UINT_LEAST8_MAX UINT8_MAX
  88. #define UINT_LEAST16_MAX UINT16_MAX
  89. #define UINT_LEAST32_MAX UINT32_MAX
  90. #define UINT_LEAST64_MAX UINT64_MAX
  91. /* 7.18.2.3 Limits of fastest minimum-width integer types */
  92. #define INT_FAST8_MIN INT8_MIN
  93. #define INT_FAST16_MIN INT16_MIN
  94. #define INT_FAST32_MIN INT32_MIN
  95. #define INT_FAST64_MIN INT64_MIN
  96. #define INT_FAST8_MAX INT8_MAX
  97. #define INT_FAST16_MAX INT16_MAX
  98. #define INT_FAST32_MAX INT32_MAX
  99. #define INT_FAST64_MAX INT64_MAX
  100. #define UINT_FAST8_MAX UINT8_MAX
  101. #define UINT_FAST16_MAX UINT16_MAX
  102. #define UINT_FAST32_MAX UINT32_MAX
  103. #define UINT_FAST64_MAX UINT64_MAX
  104. /* 7.18.2.4 Limits of integer types capable of holding
  105. object pointers */
  106. #ifdef _WIN64
  107. #define INTPTR_MIN INT64_MIN
  108. #define INTPTR_MAX INT64_MAX
  109. #define UINTPTR_MAX UINT64_MAX
  110. #else
  111. #define INTPTR_MIN INT32_MIN
  112. #define INTPTR_MAX INT32_MAX
  113. #define UINTPTR_MAX UINT32_MAX
  114. #endif
  115. /* 7.18.2.5 Limits of greatest-width integer types */
  116. #define INTMAX_MIN INT64_MIN
  117. #define INTMAX_MAX INT64_MAX
  118. #define UINTMAX_MAX UINT64_MAX
  119. /* 7.18.3 Limits of other integer types */
  120. #ifdef _WIN64
  121. #define PTRDIFF_MIN INT64_MIN
  122. #define PTRDIFF_MAX INT64_MAX
  123. #else
  124. #define PTRDIFF_MIN INT32_MIN
  125. #define PTRDIFF_MAX INT32_MAX
  126. #endif
  127. #define SIG_ATOMIC_MIN INT32_MIN
  128. #define SIG_ATOMIC_MAX INT32_MAX
  129. #ifndef SIZE_MAX
  130. #ifdef _WIN64
  131. #define SIZE_MAX UINT64_MAX
  132. #else
  133. #define SIZE_MAX UINT32_MAX
  134. #endif
  135. #endif
  136. #ifndef WCHAR_MIN /* also in wchar.h */
  137. #define WCHAR_MIN 0U
  138. #define WCHAR_MAX 0xffffU
  139. #endif
  140. /*
  141. * wint_t is unsigned short for compatibility with MS runtime
  142. */
  143. #define WINT_MIN 0U
  144. #define WINT_MAX 0xffffU
  145. #endif /* !defined ( __cplusplus) || defined __STDC_LIMIT_MACROS */
  146. /* 7.18.4 Macros for integer constants */
  147. #if !defined(__cplusplus) || defined(__STDC_CONSTANT_MACROS) || \
  148. defined(__GXX_EXPERIMENTAL_CXX0X__) || __cplusplus >= 201103L
  149. /* 7.18.4.1 Macros for minimum-width integer constants
  150. Accoding to Douglas Gwyn <gwyn@arl.mil>:
  151. "This spec was changed in ISO/IEC 9899:1999 TC1; in ISO/IEC
  152. 9899:1999 as initially published, the expansion was required
  153. to be an integer constant of precisely matching type, which
  154. is impossible to accomplish for the shorter types on most
  155. platforms, because C99 provides no standard way to designate
  156. an integer constant with width less than that of type int.
  157. TC1 changed this to require just an integer constant
  158. *expression* with *promoted* type."
  159. The trick used here is from Clive D W Feather.
  160. */
  161. #define INT8_C(val) (INT_LEAST8_MAX-INT_LEAST8_MAX+(val))
  162. #define INT16_C(val) (INT_LEAST16_MAX-INT_LEAST16_MAX+(val))
  163. #define INT32_C(val) (INT_LEAST32_MAX-INT_LEAST32_MAX+(val))
  164. /* The 'trick' doesn't work in C89 for long long because, without
  165. suffix, (val) will be evaluated as int, not intmax_t */
  166. #define INT64_C(val) val##LL
  167. #define UINT8_C(val) (val)
  168. #define UINT16_C(val) (val)
  169. #define UINT32_C(val) (val##U)
  170. #define UINT64_C(val) val##ULL
  171. /* 7.18.4.2 Macros for greatest-width integer constants */
  172. #define INTMAX_C(val) val##LL
  173. #define UINTMAX_C(val) val##ULL
  174. #endif /* !defined ( __cplusplus) || defined __STDC_CONSTANT_MACROS */
  175. #endif /* _STDINT_H */