| /* $OpenBSD: limits.h,v 1.6 2005/12/13 00:35:23 millert Exp $ */ |
| /* |
| * Copyright (c) 2002 Marc Espie. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE OPENBSD PROJECT AND CONTRIBUTORS |
| * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBSD |
| * PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| #ifndef _SYS_LIMITS_H_ |
| #define _SYS_LIMITS_H_ |
| |
| #include <sys/cdefs.h> |
| #include <linux/limits.h> |
| |
| /* Common definitions for limits.h. */ |
| |
| /* |
| * <machine/internal_types.h> is meant to describe a specific architecture, |
| * but to be a safe include, that doesn't ever define anything that is |
| * user-visible (only typedefs and #define names that stays in the __xxx |
| * namespace). |
| * |
| * __machine_has_unsigned_chars (default is signed chars) |
| * __FLT_xxx/__DBL_xxx non standard values for floating |
| * points limits. |
| */ |
| #include <machine/internal_types.h> |
| |
| /* Legacy */ |
| #include <machine/limits.h> |
| |
| #define CHAR_BIT 8 /* number of bits in a char */ |
| |
| #define SCHAR_MAX 0x7f /* max value for a signed char */ |
| #define SCHAR_MIN (-0x7f-1) /* min value for a signed char */ |
| |
| #define UCHAR_MAX 0xffU /* max value for an unsigned char */ |
| #ifdef __machine_has_unsigned_chars |
| # define CHAR_MIN 0 /* min value for a char */ |
| # define CHAR_MAX 0xff /* max value for a char */ |
| #else |
| # define CHAR_MAX 0x7f |
| # define CHAR_MIN (-0x7f-1) |
| #endif |
| |
| #define USHRT_MAX 0xffffU /* max value for an unsigned short */ |
| #define SHRT_MAX 0x7fff /* max value for a short */ |
| #define SHRT_MIN (-0x7fff-1) /* min value for a short */ |
| |
| #define UINT_MAX 0xffffffffU /* max value for an unsigned int */ |
| #define INT_MAX 0x7fffffff /* max value for an int */ |
| #define INT_MIN (-0x7fffffff-1) /* min value for an int */ |
| |
| #ifdef __LP64__ |
| # define ULONG_MAX 0xffffffffffffffffUL |
| /* max value for unsigned long */ |
| # define LONG_MAX 0x7fffffffffffffffL |
| /* max value for a signed long */ |
| # define LONG_MIN (-0x7fffffffffffffffL-1) |
| /* min value for a signed long */ |
| #else |
| # define ULONG_MAX 0xffffffffUL /* max value for an unsigned long */ |
| # define LONG_MAX 0x7fffffffL /* max value for a long */ |
| # define LONG_MIN (-0x7fffffffL-1)/* min value for a long */ |
| #endif |
| |
| #if __BSD_VISIBLE || __ISO_C_VISIBLE >= 1999 |
| # define ULLONG_MAX 0xffffffffffffffffULL |
| /* max value for unsigned long long */ |
| # define LLONG_MAX 0x7fffffffffffffffLL |
| /* max value for a signed long long */ |
| # define LLONG_MIN (-0x7fffffffffffffffLL-1) |
| /* min value for a signed long long */ |
| #endif |
| |
| #if __BSD_VISIBLE |
| # define UID_MAX UINT_MAX /* max value for a uid_t */ |
| # define GID_MAX UINT_MAX /* max value for a gid_t */ |
| #endif |
| |
| |
| #ifdef __LP64__ |
| # define LONG_BIT 64 |
| #else |
| # define LONG_BIT 32 |
| #endif |
| |
| /* float.h defines these as well */ |
| # if !defined(DBL_DIG) |
| # if defined(__DBL_DIG) |
| # define DBL_DIG __DBL_DIG |
| # define DBL_MAX __DBL_MAX |
| # define DBL_MIN __DBL_MIN |
| |
| # define FLT_DIG __FLT_DIG |
| # define FLT_MAX __FLT_MAX |
| # define FLT_MIN __FLT_MIN |
| # else |
| # define DBL_DIG 15 |
| # define DBL_MAX 1.7976931348623157E+308 |
| # define DBL_MIN 2.2250738585072014E-308 |
| |
| # define FLT_DIG 6 |
| # define FLT_MAX 3.40282347E+38F |
| # define FLT_MIN 1.17549435E-38F |
| # endif |
| # endif |
| |
| /* Bionic: the following has been optimized out from our processed kernel headers */ |
| |
| #define CHILD_MAX 999 |
| #define OPEN_MAX 256 |
| |
| /* Bionic-specific definitions */ |
| |
| #define _POSIX_VERSION 200112L /* Posix C language bindings version */ |
| #define _POSIX2_VERSION -1 /* we don't support Posix command-line tools */ |
| #define _POSIX2_C_VERSION _POSIX_VERSION |
| #define _XOPEN_VERSION 500 /* by Posix definition */ |
| #define _XOPEN_XCU_VERSION -1 /* we don't support command-line utilities */ |
| |
| /* tell what we implement legacy stuff when appropriate */ |
| #if _POSIX_VERSION > 0 |
| #define _XOPEN_XPG2 1 |
| #define _XOPEN_XPG3 1 |
| #define _XOPEN_XPG4 1 |
| #define _XOPEN_UNIX 1 |
| #endif |
| |
| #define _XOPEN_ENH_I18N -1 /* we don't support internationalization in the C library */ |
| #define _XOPEN_CRYPT -1 /* don't support X/Open Encryption */ |
| #define _XOPEN_LEGACY -1 /* don't claim we support these, we have some of them but not all */ |
| #define _XOPEN_REALTIME -1 /* we don't support all these functions */ |
| #define _XOPEN_REALTIME_THREADS -1 /* same here */ |
| |
| #define _POSIX_REALTIME_SIGNALS -1 /* for now, this is not supported */ |
| #define _POSIX_PRIORITY_SCHEDULING 1 /* priority scheduling is a Linux feature */ |
| #define _POSIX_TIMERS 1 /* Posix timers are supported */ |
| #undef _POSIX_ASYNCHRONOUS_IO /* aio_ functions are not supported */ |
| #define _POSIX_SYNCHRONIZED_IO 1 /* synchronized i/o supported */ |
| #define _POSIX_FSYNC 1 /* fdatasync() supported */ |
| #define _POSIX_MAPPED_FILES 1 /* mmap-ed files supported */ |
| |
| /* XXX: TODO: complete and check list here */ |
| |
| |
| #define _POSIX_THREADS 1 /* we support threads */ |
| #define _POSIX_THREAD_STACKADDR 1 /* we support thread stack address */ |
| #define _POSIX_THREAD_STACKSIZE 1 /* we support thread stack size */ |
| #define _POSIX_THREAD_PRIO_INHERIT 200112L /* linux feature */ |
| #define _POSIX_THREAD_PRIO_PROTECT 200112L /* linux feature */ |
| |
| #undef _POSIX_PROCESS_SHARED /* we don't support process-shared synchronization */ |
| #undef _POSIX_THREAD_SAFE_FUNCTIONS /* most functions are, but not everything yet */ |
| #define _POSIX_CHOWN_RESTRICTED 1 /* yes, chown requires appropriate privileges */ |
| #define _POSIX_MONOTONIC_CLOCK 0 /* the monotonic clock may be available; ask sysconf */ |
| #define _POSIX_NO_TRUNC 1 /* very long pathnames generate an error */ |
| #define _POSIX_SAVED_IDS 1 /* saved user ids is a Linux feature */ |
| #define _POSIX_JOB_CONTROL 1 /* job control is a Linux feature */ |
| |
| |
| |
| #endif |
