Leaked source code of windows server 2003
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  1. /***
  2. *limits.h - implementation dependent values
  3. *
  4. * Copyright (c) 1985-2001, Microsoft Corporation. All rights reserved.
  5. *
  6. *Purpose:
  7. * Contains defines for a number of implementation dependent values
  8. * which are commonly used in C programs.
  9. * [ANSI]
  10. *
  11. * [Public]
  12. *
  13. *Revision History:
  14. * 06-03-87 JMB Added support for unsigned char max values
  15. * 08-19-88 GJF Revised to also support the 386
  16. * 04-28-89 SKS Put parentheses around negative constants
  17. * 08-17-89 GJF Cleanup, now specific to 386
  18. * 10-30-89 GJF Fixed copyright
  19. * 11-15-89 KRS Add MB_LEN_MAX, fix CHAR_MIN/MAX, order like ANSI spec.
  20. * 03-01-90 GJF Added #ifndef _INC_LIMITS stuff
  21. * 02-21-91 KRS Change MB_LEN_MAX to 2 for C 7.00.
  22. * 03-30-92 DJM POSIX support.
  23. * 08-22-92 SRW Fix value of _POSIX_ARG_MAX
  24. * 12-14-92 SRW Fix value of _POSIX_ARG_MAX again
  25. * 12-14-92 SRW Back merge MattBr's changes from 10/29/92
  26. * 01-15-93 CFW Added __c_lconvinit dummy variable.
  27. * 01-28-93 SRW MAke PATH_MAX for Posix right for Posix
  28. * 02-01-93 CFW Removed __c_lconvinit vars to locale.h.
  29. * 03-10-93 MJB More fixes for Posix.
  30. * 04-07-93 SKS Fix copyright
  31. * 04-20-93 GJF Changed SCHAR_MIN, SHRT_MIN, INT_MIN, LONG_MIN
  32. * 04-21-93 GJF By directive of JonM, backed out prior change.
  33. * 04-26-93 GJF By directive of JonM, restored change.
  34. * 02-01-94 GJF Added type suffixes to LONG_MAX, LONG_MIN and
  35. * ULONG_MAX. Added constants for sized integer types.
  36. * 02-23-94 CFW Add u suffixes.
  37. * 02-11-95 CFW Add _CRTBLD to avoid users getting wrong headers.
  38. * 02-14-95 CFW Clean up Mac merge.
  39. * 12-14-95 JWM Add "#pragma once".
  40. * 01-01-96 BWT Define LINK_MAX for POSIX.
  41. * 02-24-97 GJF Detab-ed.
  42. * 05-17-99 PML Remove all Macintosh support.
  43. * 12-16-99 GB Updated MB_LEN_MAX
  44. *
  45. ****/
  46. #if _MSC_VER > 1000 /*IFSTRIP=IGN*/
  47. #pragma once
  48. #endif
  49. #ifndef _INC_LIMITS
  50. #define _INC_LIMITS
  51. #if !defined(_WIN32)
  52. #error ERROR: Only Win32 target supported!
  53. #endif
  54. #ifndef _CRTBLD
  55. /* This version of the header files is NOT for user programs.
  56. * It is intended for use when building the C runtimes ONLY.
  57. * The version intended for public use will not have this message.
  58. */
  59. #error ERROR: Use of C runtime library internal header file.
  60. #endif /* _CRTBLD */
  61. #define CHAR_BIT 8 /* number of bits in a char */
  62. #define SCHAR_MIN (-128) /* minimum signed char value */
  63. #define SCHAR_MAX 127 /* maximum signed char value */
  64. #define UCHAR_MAX 0xff /* maximum unsigned char value */
  65. #ifndef _CHAR_UNSIGNED
  66. #define CHAR_MIN SCHAR_MIN /* mimimum char value */
  67. #define CHAR_MAX SCHAR_MAX /* maximum char value */
  68. #else
  69. #define CHAR_MIN 0
  70. #define CHAR_MAX UCHAR_MAX
  71. #endif /* _CHAR_UNSIGNED */
  72. #define MB_LEN_MAX 5 /* max. # bytes in multibyte char */
  73. #define SHRT_MIN (-32768) /* minimum (signed) short value */
  74. #define SHRT_MAX 32767 /* maximum (signed) short value */
  75. #define USHRT_MAX 0xffff /* maximum unsigned short value */
  76. #define INT_MIN (-2147483647 - 1) /* minimum (signed) int value */
  77. #define INT_MAX 2147483647 /* maximum (signed) int value */
  78. #define UINT_MAX 0xffffffff /* maximum unsigned int value */
  79. #define LONG_MIN (-2147483647L - 1) /* minimum (signed) long value */
  80. #define LONG_MAX 2147483647L /* maximum (signed) long value */
  81. #define ULONG_MAX 0xffffffffUL /* maximum unsigned long value */
  82. #if _INTEGRAL_MAX_BITS >= 8 /*IFSTRIP=IGN*/
  83. #define _I8_MIN (-127i8 - 1) /* minimum signed 8 bit value */
  84. #define _I8_MAX 127i8 /* maximum signed 8 bit value */
  85. #define _UI8_MAX 0xffui8 /* maximum unsigned 8 bit value */
  86. #endif
  87. #if _INTEGRAL_MAX_BITS >= 16 /*IFSTRIP=IGN*/
  88. #define _I16_MIN (-32767i16 - 1) /* minimum signed 16 bit value */
  89. #define _I16_MAX 32767i16 /* maximum signed 16 bit value */
  90. #define _UI16_MAX 0xffffui16 /* maximum unsigned 16 bit value */
  91. #endif
  92. #if _INTEGRAL_MAX_BITS >= 32 /*IFSTRIP=IGN*/
  93. #define _I32_MIN (-2147483647i32 - 1) /* minimum signed 32 bit value */
  94. #define _I32_MAX 2147483647i32 /* maximum signed 32 bit value */
  95. #define _UI32_MAX 0xffffffffui32 /* maximum unsigned 32 bit value */
  96. #endif
  97. #if _INTEGRAL_MAX_BITS >= 64 /*IFSTRIP=IGN*/
  98. /* minimum signed 64 bit value */
  99. #define _I64_MIN (-9223372036854775807i64 - 1)
  100. /* maximum signed 64 bit value */
  101. #define _I64_MAX 9223372036854775807i64
  102. /* maximum unsigned 64 bit value */
  103. #define _UI64_MAX 0xffffffffffffffffui64
  104. #endif
  105. #if _INTEGRAL_MAX_BITS >= 128 /*IFSTRIP=IGN*/
  106. /* minimum signed 128 bit value */
  107. #define _I128_MIN (-170141183460469231731687303715884105727i128 - 1)
  108. /* maximum signed 128 bit value */
  109. #define _I128_MAX 170141183460469231731687303715884105727i128
  110. /* maximum unsigned 128 bit value */
  111. #define _UI128_MAX 0xffffffffffffffffffffffffffffffffui128
  112. #endif
  113. #ifdef _POSIX_
  114. #define _POSIX_ARG_MAX 4096
  115. #define _POSIX_CHILD_MAX 6
  116. #define _POSIX_LINK_MAX 8
  117. #define _POSIX_MAX_CANON 255
  118. #define _POSIX_MAX_INPUT 255
  119. #define _POSIX_NAME_MAX 14
  120. #define _POSIX_NGROUPS_MAX 0
  121. #define _POSIX_OPEN_MAX 16
  122. #define _POSIX_PATH_MAX 255
  123. #define _POSIX_PIPE_BUF 512
  124. #define _POSIX_SSIZE_MAX 32767
  125. #define _POSIX_STREAM_MAX 8
  126. #define _POSIX_TZNAME_MAX 3
  127. #define ARG_MAX 14500 /* 16k heap, minus overhead */
  128. #define LINK_MAX 1024
  129. #define MAX_CANON _POSIX_MAX_CANON
  130. #define MAX_INPUT _POSIX_MAX_INPUT
  131. #define NAME_MAX 255
  132. #define NGROUPS_MAX 16
  133. #define OPEN_MAX 32
  134. #define PATH_MAX 512
  135. #define PIPE_BUF _POSIX_PIPE_BUF
  136. #define SSIZE_MAX _POSIX_SSIZE_MAX
  137. #define STREAM_MAX 20
  138. #define TZNAME_MAX 10
  139. #endif /* POSIX */
  140. #endif /* _INC_LIMITS */