| 1 | /** @file
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| 2 | The header <limits.h> defines several macros that expand to various limits and
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| 3 | parameters of the standard integer types.
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| 4 |
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| 5 | The values given below are constant expressions suitable for
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| 6 | use in #if preprocessing directives. Except for CHAR_BIT and
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| 7 | MB_LEN_MAX, they have the same
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| 8 | type as would an expression that is an object of the corresponding type
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| 9 | converted according to the integer promotions.
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| 10 |
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| 11 | Copyright (c) 2010 - 2012, Intel Corporation. All rights reserved.<BR>
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| 12 | This program and the accompanying materials are licensed and made available under
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| 13 | the terms and conditions of the BSD License that accompanies this distribution.
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| 14 | The full text of the license may be found at
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| 15 | http://opensource.org/licenses/bsd-license.
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| 16 |
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| 17 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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| 18 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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| 19 | **/
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| 20 | #ifndef _LIMITS_H
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| 21 | #define _LIMITS_H
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| 22 | #include <sys/EfiCdefs.h>
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| 23 | #include <Library/PcdLib.h>
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| 24 |
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| 25 | /* Get the architecturally defined limits for this compilation unit. */
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| 26 | #include <machine/limits.h>
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| 27 |
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| 28 | /* Define the values required by the ISO/IEC 9899 Specification. */
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| 29 |
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| 30 | /** Maximum number of bytes in a multibyte character, for any supported locale. **/
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| 31 | #define MB_LEN_MAX 4 /* UTF-8 can require up to 4 bytes */
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| 32 |
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| 33 | /** Number of bits comprising the smallest object that is not a bit-field (byte). **/
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| 34 | #define CHAR_BIT __CHAR_BIT
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| 35 |
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| 36 | /** Minimum value for an object of type signed char. **/
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| 37 | #define SCHAR_MIN __SCHAR_MIN
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| 38 |
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| 39 | /** Maximum value for an object of type signed char. **/
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| 40 | #define SCHAR_MAX __SCHAR_MAX
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| 41 |
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| 42 | /** Maximum value for an object of type unsigned char. **/
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| 43 | #define UCHAR_MAX __UCHAR_MAX
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| 44 |
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| 45 | #ifdef __CHAR_UNSIGNED__
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| 46 | /** Maximum value for an object of type char. **/
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| 47 | #define CHAR_MAX UCHAR_MAX
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| 48 | /** Minimum value for an object of type char. **/
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| 49 | #define CHAR_MIN 0
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| 50 | #else
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| 51 | /** Maximum value for an object of type char. **/
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| 52 | #define CHAR_MAX SCHAR_MAX
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| 53 | /** Minimum value for an object of type char. **/
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| 54 | #define CHAR_MIN SCHAR_MIN
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| 55 | #endif
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| 56 |
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| 57 | /** Minimum value for an object of type short int. **/
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| 58 | #define SHRT_MIN __SHRT_MIN
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| 59 |
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| 60 | /** Maximum value for an object of type short int. **/
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| 61 | #define SHRT_MAX __SHRT_MAX
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| 62 |
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| 63 | /** Maximum value for an object of type unsigned short int. **/
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| 64 | #define USHRT_MAX __USHRT_MAX
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| 65 |
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| 66 | /** Minimum value for an object of type int. **/
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| 67 | #define INT_MIN __INT_MIN
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| 68 |
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| 69 | /** Maximum value for an object of type int. **/
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| 70 | #define INT_MAX __INT_MAX
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| 71 |
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| 72 | /** Maximum value for an object of type unsigned int. **/
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| 73 | #define UINT_MAX __UINT_MAX
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| 74 |
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| 75 | /** Minimum value for an object of type long int. **/
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| 76 | #define LONG_MIN __LONG_MIN
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| 77 |
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| 78 | /** Maximum value for an object of type long int. **/
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| 79 | #define LONG_MAX __LONG_MAX
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| 80 |
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| 81 | /** Maximum value for an object of type unsigned long int. **/
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| 82 | #define ULONG_MAX __ULONG_MAX
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| 83 |
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| 84 | /** Minimum value for an object of type long long int. **/
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| 85 | #define LLONG_MIN __LLONG_MIN
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| 86 |
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| 87 | /** Maximum value for an object of type long long int. **/
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| 88 | #define LLONG_MAX __LLONG_MAX
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| 89 |
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| 90 | /** Maximum value for an object of type unsigned long long int. **/
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| 91 | #define ULLONG_MAX __ULLONG_MAX
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| 92 |
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| 93 | /* Object limits used in the Standard Libraries */
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| 94 | #if (PcdGet32(PcdMaximumAsciiStringLength) > 0)
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| 95 | /** Maximum length of an arbitrary "narrow-character" string. **/
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| 96 | #define ASCII_STRING_MAX PcdGet32(PcdMaximumAsciiStringLength)
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| 97 | #else
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| 98 | /** Maximum length of an arbitrary "narrow-character" string. **/
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| 99 | #define ASCII_STRING_MAX 256
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| 100 | #endif
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| 101 |
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| 102 | #if (PcdGet32(PcdMaximumUnicodeStringLength) > 0)
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| 103 | /** Maximum length of an arbitrary "wide-character" string. **/
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| 104 | #define UNICODE_STRING_MAX PcdGet32(PcdMaximumUnicodeStringLength)
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| 105 | #else
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| 106 | /** Maximum length of an arbitrary "wide-character" string. **/
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| 107 | #define UNICODE_STRING_MAX 512
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| 108 | #endif
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| 109 |
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| 110 | /* Limits for BSD Compatibility */
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| 111 | #define NL_TEXTMAX 2048
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| 112 |
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| 113 | #include <sys/syslimits.h>
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| 114 |
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| 115 | #endif /* _LIMITS_H */
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