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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2014 Garrett D'Amore <garrett@damore.org>
*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_INT_LIMITS_H
#define _SYS_INT_LIMITS_H
/*
* This file, <sys/int_limits.h>, is part of the Sun Microsystems implementation
* of <inttypes.h> as defined in the ISO C standard, ISO/IEC 9899:1999
* Programming language - C.
*
* Programs/Modules should not directly include this file. Access to the
* types defined in this file should be through the inclusion of one of the
* following files:
*
* <limits.h> This nested inclusion is disabled for strictly
* ANSI-C conforming compilations. The *_MIN
* definitions are not visible to POSIX or XPG
* conforming applications (due to what may be
* a bug in the specification - this is under
* investigation)
*
* <sys/inttypes.h> Provides the Kernel and Driver appropriate
* components of <inttypes.h>.
*
* <inttypes.h> For use by applications.
*
* See these files for more details.
*/
#include <sys/feature_tests.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Limits
*
* The following define the limits for the types defined in <sys/int_types.h>.
*
* INTMAX_MIN (minimum value of the largest supported signed integer type),
* INTMAX_MAX (maximum value of the largest supported signed integer type),
* and UINTMAX_MAX (maximum value of the largest supported unsigned integer
* type) can be set to implementation defined limits.
*
* NOTE : A programmer can test to see whether an implementation supports
* a particular size of integer by testing if the macro that gives the
* maximum for that datatype is defined. For example, if #ifdef UINT64_MAX
* tests false, the implementation does not support unsigned 64 bit integers.
*
* The type of these macros is intentionally unspecified.
*
* The types int8_t, int_least8_t, and int_fast8_t are not defined for ISAs
* where the ABI specifies "char" as unsigned when the translation mode is
* not ANSI-C.
*/
#define INT8_MAX (127)
#define INT16_MAX (32767)
#define INT32_MAX (2147483647)
#if defined(_LP64)
#define INT64_MAX (9223372036854775807L)
#elif defined(_LONGLONG_TYPE)
#define INT64_MAX (9223372036854775807LL)
#endif
#define UINT8_MAX (255U)
#define UINT16_MAX (65535U)
#define UINT32_MAX (4294967295U)
#if defined(_LP64)
#define UINT64_MAX (18446744073709551615UL)
#elif defined(_LONGLONG_TYPE)
#define UINT64_MAX (18446744073709551615ULL)
#endif
#ifdef INT64_MAX
#define INTMAX_MAX INT64_MAX
#else
#define INTMAX_MAX INT32_MAX
#endif
#ifdef UINT64_MAX
#define UINTMAX_MAX UINT64_MAX
#else
#define UINTMAX_MAX UINT32_MAX
#endif
#define INT_LEAST8_MAX INT8_MAX
#define INT_LEAST16_MAX INT16_MAX
#define INT_LEAST32_MAX INT32_MAX
#ifdef INT64_MAX
#define INT_LEAST64_MAX INT64_MAX
#endif
#define UINT_LEAST8_MAX UINT8_MAX
#define UINT_LEAST16_MAX UINT16_MAX
#define UINT_LEAST32_MAX UINT32_MAX
#ifdef UINT64_MAX
#define UINT_LEAST64_MAX UINT64_MAX
#endif
#define INT_FAST8_MAX INT8_MAX
#define INT_FAST16_MAX INT16_MAX
#define INT_FAST32_MAX INT32_MAX
#ifdef INT64_MAX
#define INT_FAST64_MAX INT64_MAX
#endif
#define UINT_FAST8_MAX UINT8_MAX
#define UINT_FAST16_MAX UINT16_MAX
#define UINT_FAST32_MAX UINT32_MAX
#ifdef UINT64_MAX
#define UINT_FAST64_MAX UINT64_MAX
#endif
/*
* The following 2 macros are provided for testing whether the types
* intptr_t and uintptr_t (integers large enough to hold a void *) are
* defined in this header. They are needed in case the architecture can't
* represent a pointer in any standard integral type.
*/
#if defined(_LP64) || defined(_I32LPx)
#define INTPTR_MAX INT64_MAX
#define UINTPTR_MAX UINT64_MAX
#else
#define INTPTR_MAX INT32_MAX
#define UINTPTR_MAX UINT32_MAX
#endif
/* Maximum limits of ptrdiff_t defined in <sys/types.h> */
#if defined(_LP64) || defined(_I32LPx)
#define PTRDIFF_MAX 9223372036854775807L
#else
#define PTRDIFF_MAX 2147483647
#endif
/*
* Maximum value of a "size_t". SIZE_MAX was previously defined
* in <limits.h>, however, the standards specify it be defined
* in <stdint.h>. The <stdint.h> headers includes this header as
* does <limits.h>. The value of SIZE_MAX should not deviate
* from the value of ULONG_MAX defined <sys/types.h>.
*/
#if defined(_LP64)
#define SIZE_MAX 18446744073709551615UL
#else
#define SIZE_MAX 4294967295UL
#endif
/* Maximum limit of sig_atomic_t defined in <sys/types.h> */
#ifndef SIG_ATOMIC_MAX
#define SIG_ATOMIC_MAX 2147483647
#endif
/*
* Maximum limit of wchar_t. The WCHAR_* macros are also
* defined in <iso/wchar_iso.h>, but inclusion of that header
* will break ISO/IEC C namespace.
*/
#ifndef WCHAR_MAX
#define WCHAR_MAX 2147483647
#endif
/* Maximum limit of wint_t */
#ifndef WINT_MAX
#define WINT_MAX 2147483647
#endif
/*
* It is probably a bug in the POSIX specification (IEEE-1003.1-1990) that
* when including <limits.h> that the suffix _MAX is reserved but not the
* suffix _MIN. However, until that issue is resolved....
*/
#if defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX) || defined(_XPG6)
#define INT8_MIN (-128)
#define INT16_MIN (-32767-1)
#define INT32_MIN (-2147483647-1)
#if defined(_LP64)
#define INT64_MIN (-9223372036854775807L-1)
#elif defined(_LONGLONG_TYPE)
#define INT64_MIN (-9223372036854775807LL-1)
#endif
#ifdef INT64_MIN
#define INTMAX_MIN INT64_MIN
#else
#define INTMAX_MIN INT32_MIN
#endif
#define INT_LEAST8_MIN INT8_MIN
#define INT_LEAST16_MIN INT16_MIN
#define INT_LEAST32_MIN INT32_MIN
#ifdef INT64_MIN
#define INT_LEAST64_MIN INT64_MIN
#endif
#define INT_FAST8_MIN INT8_MIN
#define INT_FAST16_MIN INT16_MIN
#define INT_FAST32_MIN INT32_MIN
#ifdef INT64_MIN
#define INT_FAST64_MIN INT64_MIN
#endif
/* Minimum value of a pointer-holding signed integer type */
#if defined(_LP64) || defined(_I32LPx)
#define INTPTR_MIN INT64_MIN
#else
#define INTPTR_MIN INT32_MIN
#endif
/* Minimum limits of ptrdiff_t defined in <sys/types.h> */
#if defined(_LP64) || defined(_I32LPx)
#define PTRDIFF_MIN (-9223372036854775807L-1L)
#else
#define PTRDIFF_MIN (-2147483647-1)
#endif
/* Minimum limit of sig_atomic_t defined in <sys/types.h> */
#ifndef SIG_ATOMIC_MIN
#define SIG_ATOMIC_MIN (-2147483647-1)
#endif
/*
* Minimum limit of wchar_t. The WCHAR_* macros are also
* defined in <iso/wchar_iso.h>, but inclusion of that header
* will break ISO/IEC C namespace.
*/
#ifndef WCHAR_MIN
#define WCHAR_MIN (-2147483647-1)
#endif
/* Minimum limit of wint_t */
#ifndef WINT_MIN
#define WINT_MIN (-2147483647-1)
#endif
#endif /* defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX) ... */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_INT_LIMITS_H */
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