FreeBSD/Linux Kernel Cross Reference
sys/sys/limits.h

     /*-
      * SPDX-License-Identifier: BSD-3-Clause
      *
      * Copyright (c) 1988, 1993
      *      The Regents of the University of California.  All rights reserved.
      *
      * 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.
     * 3. Neither the name of the University nor the names of its contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
     *
     * $FreeBSD$
     */
    
    #ifndef _SYS_LIMITS_H_
    #define _SYS_LIMITS_H_
    
    #include <sys/cdefs.h>
    #include <machine/_limits.h>
    
    #define CHAR_BIT        __CHAR_BIT      /* number of bits in a char */
    
    #define SCHAR_MAX       __SCHAR_MAX     /* max value for a signed char */
    #define SCHAR_MIN       __SCHAR_MIN     /* min value for a signed char */
    
    #define UCHAR_MAX       __UCHAR_MAX     /* max value for an unsigned char */
    
    #ifdef __CHAR_UNSIGNED__
    #define CHAR_MAX        UCHAR_MAX       /* max value for a char */
    #define CHAR_MIN        0               /* min value for a char */
    #else
    #define CHAR_MAX        SCHAR_MAX
    #define CHAR_MIN        SCHAR_MIN
    #endif
    
    #define USHRT_MAX       __USHRT_MAX     /* max value for an unsigned short */
    #define SHRT_MAX        __SHRT_MAX      /* max value for a short */
    #define SHRT_MIN        __SHRT_MIN      /* min value for a short */
    
    #define UINT_MAX        __UINT_MAX      /* max value for an unsigned int */
    #define INT_MAX         __INT_MAX       /* max value for an int */
    #define INT_MIN         __INT_MIN       /* min value for an int */
    
    #define ULONG_MAX       __ULONG_MAX     /* max for an unsigned long */
    #define LONG_MAX        __LONG_MAX      /* max for a long */
    #define LONG_MIN        __LONG_MIN      /* min for a long */
    
    #ifdef __LONG_LONG_SUPPORTED
    #define ULLONG_MAX      __ULLONG_MAX    /* max for an unsigned long long */
    #define LLONG_MAX       __LLONG_MAX     /* max for a long long */
    #define LLONG_MIN       __LLONG_MIN     /* min for a long long */
    #endif
    
    #if __POSIX_VISIBLE || __XSI_VISIBLE
    #define SSIZE_MAX       __SSIZE_MAX     /* max value for an ssize_t */
    #endif
    
    #if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE
    #define SIZE_T_MAX      __SIZE_T_MAX    /* max value for a size_t */
    
    #define OFF_MAX         __OFF_MAX       /* max value for an off_t */
    #define OFF_MIN         __OFF_MIN       /* min value for an off_t */
    #endif
    
    #if __BSD_VISIBLE
    #define GID_MAX         UINT_MAX        /* max value for a gid_t */
    #define UID_MAX         UINT_MAX        /* max value for a uid_t */
    
    #define UQUAD_MAX       (__UQUAD_MAX)   /* max value for a uquad_t */
    #define QUAD_MAX        (__QUAD_MAX)    /* max value for a quad_t */
    #define QUAD_MIN        (__QUAD_MIN)    /* min value for a quad_t */
    #endif
    
    #if __XSI_VISIBLE || __POSIX_VISIBLE >= 200809
    #define LONG_BIT        __LONG_BIT
    #define WORD_BIT        __WORD_BIT
    #endif
    
    #if __POSIX_VISIBLE
    #define MQ_PRIO_MAX     64
   #endif
   
   #endif /* !_SYS_LIMITS_H_ */

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