216 lines
7.5 KiB
C
216 lines
7.5 KiB
C
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/*
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* Copyright (c) 1988, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)limits.h 8.3 (Berkeley) 1/4/94
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* $FreeBSD$
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*/
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#ifndef _MACHINE_LIMITS_H_
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#define _MACHINE_LIMITS_H_
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#define CHAR_BIT 8 /* number of bits in a char */
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#define MB_LEN_MAX 6 /* Allow 31 bit UTF2 */
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/*
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* According to ANSI (section 2.2.4.2), the values below must be usable by
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* #if preprocessing directives. Additionally, the expression must have the
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* same type as would an expression that is an object of the corresponding
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* type converted according to the integral promotions. The subtraction for
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* INT_MIN, etc., is so the value is not unsigned; e.g., 0x80000000 is an
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* unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2).
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* These numbers are for the default configuration of gcc. They work for
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* some other compilers as well, but this should not be depended on.
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*/
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#define SCHAR_MAX 0x7f /* max value for a signed char */
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#define SCHAR_MIN (-0x7f - 1) /* min value for a signed char */
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#define UCHAR_MAX 0xff /* max value for an unsigned char */
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#ifdef __CHAR_UNSIGNED__
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#define CHAR_MAX UCHAR_MAX /* max value for a char */
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#define CHAR_MIN 0 /* min value for a char */
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#else
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#define CHAR_MAX SCHAR_MAX /* max value for a char */
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#define CHAR_MIN SCHAR_MIN /* min value for a char */
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#endif
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#define USHRT_MAX 0xffff /* max value for an unsigned short */
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#define SHRT_MAX 0x7fff /* max value for a short */
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#define SHRT_MIN (-0x7fff - 1) /* min value for a short */
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#define UINT_MAX 0xffffffffU /* max value for an unsigned int */
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#define INT_MAX 0x7fffffff /* max value for an int */
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#define INT_MIN (-0x7fffffff - 1) /* min value for an int */
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/* Bad hack for gcc configured to give 64-bit longs. */
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#ifdef _LARGE_LONG
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#define ULONG_MAX 0xffffffffffffffffUL
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#define LONG_MAX 0x7fffffffffffffffL
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#define LONG_MIN (-0x7fffffffffffffffL - 1)
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#else
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#define ULONG_MAX 0xffffffffUL /* max value for an unsigned long */
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#define LONG_MAX 0x7fffffffL /* max value for a long */
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#define LONG_MIN (-0x7fffffffL - 1) /* min value for a long */
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#endif
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/* max value for an unsigned long long */
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#define ULLONG_MAX 0xffffffffffffffffULL
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#define LLONG_MAX 0x7fffffffffffffffLL /* max value for a long long */
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#define LLONG_MIN (-0x7fffffffffffffffLL - 1) /* min for a long long */
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#if !defined(_ANSI_SOURCE)
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#define SSIZE_MAX INT_MAX /* max value for a ssize_t */
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#if !defined(_POSIX_SOURCE)
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#define SIZE_T_MAX UINT_MAX /* max value for a size_t */
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#define OFF_MAX LLONG_MAX /* max value for a off_t */
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#define OFF_MIN LLONG_MIN /* min value for a off_t */
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/* Quads and long longs are the same size. Ensure they stay in sync. */
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#define UQUAD_MAX ULLONG_MAX /* max value for a uquad_t */
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#define QUAD_MAX LLONG_MAX /* max value for a quad_t */
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#define QUAD_MIN LLONG_MIN /* min value for a quad_t */
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#if !defined(__cplusplus) || defined(__STDC_LIMIT_MACROS)
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/*
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* ISO/IEC 9899:1999
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* 7.18.2.1 Limits of exact-width integer types
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*/
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/* Minimum values of exact-width signed integer types. */
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#define INT8_MIN (-0x7f-1)
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#define INT16_MIN (-0x7fff-1)
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#define INT32_MIN (-0x7fffffff-1)
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#define INT64_MIN (-0x7fffffffffffffffLL-1)
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/* Maximum values of exact-width signed integer types. */
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#define INT8_MAX 0x7f
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#define INT16_MAX 0x7fff
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#define INT32_MAX 0x7fffffff
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#define INT64_MAX 0x7fffffffffffffffLL
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/* Maximum values of exact-width unsigned integer types. */
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#define UINT8_MAX 0xff
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#define UINT16_MAX 0xffff
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#define UINT32_MAX 0xffffffffU
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#define UINT64_MAX 0xffffffffffffffffULL
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/*
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* ISO/IEC 9899:1999
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* 7.18.2.2 Limits of minimum-width integer types
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*/
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/* Minimum values of minimum-width signed integer types. */
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#define INT_LEAST8_MIN SCHAR_MIN
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#define INT_LEAST16_MIN SHRT_MIN
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#define INT_LEAST32_MIN INT_MIN
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#define INT_LEAST64_MIN LLONG_MIN
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/* Maximum values of minimum-width signed integer types. */
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#define INT_LEAST8_MAX SCHAR_MAX
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#define INT_LEAST16_MAX SHRT_MAX
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#define INT_LEAST32_MAX INT_MAX
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#define INT_LEAST64_MAX LLONG_MAX
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/* Maximum values of minimum-width unsigned integer types. */
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#define UINT_LEAST8_MAX UCHAR_MAX
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#define UINT_LEAST16_MAX USHRT_MAX
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#define UINT_LEAST32_MAX UINT_MAX
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#define UINT_LEAST64_MAX ULLONG_MAX
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/*
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* ISO/IEC 9899:1999
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* 7.18.2.3 Limits of fastest minimum-width integer types
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*/
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/* Minimum values of fastest minimum-width signed integer types. */
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#define INT_FAST8_MIN INT_MIN
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#define INT_FAST16_MIN INT_MIN
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#define INT_FAST32_MIN INT_MIN
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#define INT_FAST64_MIN LLONG_MIN
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/* Maximum values of fastest minimum-width signed integer types. */
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#define INT_FAST8_MAX INT_MAX
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#define INT_FAST16_MAX INT_MAX
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#define INT_FAST32_MAX INT_MAX
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#define INT_FAST64_MAX LLONG_MAX
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/* Maximum values of fastest minimum-width unsigned integer types. */
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#define UINT_FAST8_MAX UINT_MAX
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#define UINT_FAST16_MAX UINT_MAX
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#define UINT_FAST32_MAX UINT_MAX
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#define UINT_FAST64_MAX ULLONG_MAX
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/*
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* ISO/IEC 9899:1999
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* 7.18.2.4 Limits of integer types capable of holding object pointers
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*/
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#define INTPTR_MIN INT_MIN
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#define INTPTR_MAX INT_MAX
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#define UINTPTR_MAX UINT_MAX
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/*
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* ISO/IEC 9899:1999
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* 7.18.2.5 Limits of greatest-width integer types
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*/
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#define INTMAX_MIN LLONG_MIN
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#define INTMAX_MAX LLONG_MAX
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#define UINTMAX_MAX ULLONG_MAX
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/*
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* ISO/IEC 9899:1999
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* 7.18.3 Limits of other integer types
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*/
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/* Limits of ptrdiff_t. */
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#define PTRDIFF_MIN INT_MIN
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#define PTRDIFF_MAX INT_MAX
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/* Limits of sig_atomic_t. */
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#define SIG_ATOMIC_MIN INT_MIN
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#define SIG_ATOMIC_MAX INT_MAX
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/* Limit of size_t. */
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#define SIZE_MAX UINT_MAX
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#ifndef WCHAR_MIN /* Also possibly defined in <wchar.h> */
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/* Limits of wchar_t. */
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#define WCHAR_MIN INT_MIN
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#define WCHAR_MAX INT_MAX
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/* Limits of wint_t. */
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#define WINT_MIN INT_MIN
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#define WINT_MAX INT_MAX
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#endif
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#endif /* !defined(__cplusplus) || defined(__STDC_LIMIT_MACROS) */
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#endif /* !_POSIX_SOURCE */
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#endif /* !_ANSI_SOURCE */
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#endif /* !_MACHINE_LIMITS_H_ */
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