include/crt/limits.h

   1 /**
   2  * This file has no copyright assigned and is placed in the Public Domain.
   3  * This file is part of the w64 mingw-runtime package.
   4  * No warranty is given; refer to the file DISCLAIMER within this package.
   5  */
   6 #include <crtdefs.h>
   7
   8 #ifndef _INC_LIMITS
   9 #define _INC_LIMITS
  10
  11 /*
  12 * File system limits
  13 *
  14 * TODO: NAME_MAX and OPEN_MAX are file system limits or not? Are they the
  15 *       same as FILENAME_MAX and FOPEN_MAX from stdio.h?
  16 * NOTE: Apparently the actual size of PATH_MAX is 260, but a space is
  17 *       required for the NUL. TODO: Test?
  18 */
  19 #define PATH_MAX        (259)
  20
  21 #define CHAR_BIT 8
  22 #define SCHAR_MIN (-128)
  23 #define SCHAR_MAX 127
  24 #define UCHAR_MAX 0xff
  25
  26 #define CHAR_MIN SCHAR_MIN
  27 #define CHAR_MAX SCHAR_MAX
  28
  29 #define MB_LEN_MAX 5
  30 #define SHRT_MIN (-32768)
  31 #define SHRT_MAX 32767
  32 #define USHRT_MAX 0xffff
  33 #define INT_MIN (-2147483647 - 1)
  34 #define INT_MAX 2147483647
  35 #define UINT_MAX 0xffffffff
  36 #define LONG_MIN (-2147483647L - 1)
  37 #define LONG_MAX 2147483647L
  38 #define ULONG_MAX 0xffffffffUL
  39 #define LLONG_MAX 9223372036854775807ll
  40 #define LLONG_MIN (-9223372036854775807ll - 1)
  41 #define ULLONG_MAX 0xffffffffffffffffull
  42
  43 #if _INTEGRAL_MAX_BITS >= 8
  44 #define _I8_MIN (-127 - 1)
  45 #define _I8_MAX 127i8
  46 #define _UI8_MAX 0xffu
  47 #endif
  48
  49 #if _INTEGRAL_MAX_BITS >= 16
  50 #define _I16_MIN (-32767 - 1)
  51 #define _I16_MAX 32767i16
  52 #define _UI16_MAX 0xffffu
  53 #endif
  54
  55 #if _INTEGRAL_MAX_BITS >= 32
  56 #define _I32_MIN (-2147483647 - 1)
  57 #define _I32_MAX 2147483647
  58 #define _UI32_MAX 0xffffffffu
  59 #endif
  60
  61 #if defined(__GNUC__)
  62 #undef LONG_LONG_MAX
  63 #define LONG_LONG_MAX 9223372036854775807ll
  64 #undef LONG_LONG_MIN
  65 #define LONG_LONG_MIN (-LONG_LONG_MAX-1)
  66 #undef ULONG_LONG_MAX
  67 #define ULONG_LONG_MAX (2ull * LONG_LONG_MAX + 1ull)
  68 #endif
  69
  70 #if _INTEGRAL_MAX_BITS >= 64
  71 #define _I64_MIN (-9223372036854775807ll - 1)
  72 #define _I64_MAX 9223372036854775807ll
  73 #define _UI64_MAX 0xffffffffffffffffull
  74 #endif
  75
  76 #ifndef SIZE_MAX
  77 #ifdef _WIN64
  78 #define SIZE_MAX _UI64_MAX
  79 #else
  80 #define SIZE_MAX UINT_MAX
  81 #endif
  82 #endif
  83
  84 #ifdef _POSIX_
  85 #define _POSIX_ARG_MAX 4096
  86 #define _POSIX_CHILD_MAX 6
  87 #define _POSIX_LINK_MAX 8
  88 #define _POSIX_MAX_CANON 255
  89 #define _POSIX_MAX_INPUT 255
  90 #define _POSIX_NAME_MAX 14
  91 #define _POSIX_NGROUPS_MAX 0
  92 #define _POSIX_OPEN_MAX 16
  93 #define _POSIX_PATH_MAX 255
  94 #define _POSIX_PIPE_BUF 512
  95 #define _POSIX_SSIZE_MAX 32767
  96 #define _POSIX_STREAM_MAX 8
  97 #define _POSIX_TZNAME_MAX 3
  98 #define ARG_MAX 14500
  99 #define LINK_MAX 1024
 100 #define MAX_CANON _POSIX_MAX_CANON
 101 #define MAX_INPUT _POSIX_MAX_INPUT
 102 #define NAME_MAX 255
 103 #define NGROUPS_MAX 16
 104 #define OPEN_MAX 32
 105 #define PATH_MAX 512
 106 #define PIPE_BUF _POSIX_PIPE_BUF
 107 #define SSIZE_MAX _POSIX_SSIZE_MAX
 108 #define STREAM_MAX 20
 109 #define TZNAME_MAX 10
 110 #endif
 111 #endif