/*      $NetBSD: common_limits.h,v 1.4 2024/10/30 15:56:12 riastradh Exp $      */

/*-
 * Copyright (c) 2014 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Matt Thomas of 3am Software Foundry.
 *
 * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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_COMMON_LIMITS_H_
#define _SYS_COMMON_LIMITS_H_

#include <sys/featuretest.h>

#define CHAR_BIT        __CHAR_BIT__    /* number of bits in a char */

#define SCHAR_MIN       (-__SCHAR_MAX__-1) /* min value for a signed char */
#define SCHAR_MAX       __SCHAR_MAX__   /* max value for a signed char */
#define UCHAR_MAX       (2*SCHAR_MAX+1) /* max value for an unsigned char */

#define SHRT_MIN        (-__SHRT_MAX__-1) /* min value for a short */
#define SHRT_MAX        __SHRT_MAX__    /* max value for a short */
#define USHRT_MAX       (2*SHRT_MAX+1)  /* max value for an unsigned short */

#define INT_MIN         (-__INT_MAX__-1) /* min value for an int */
#define INT_MAX         __INT_MAX__     /* max value for an int */
#define UINT_MAX        (2U*INT_MAX+1U) /* max value for an unsigned int */

#define LONG_MIN        (-__LONG_MAX__-1L)      /* min value for a long */
#define LONG_MAX        __LONG_MAX__            /* max value for a long */
#define ULONG_MAX       (2UL*LONG_MAX+1UL)      /* max unsigned long */

#if defined(_ISOC99_SOURCE) || (__STDC_VERSION__ - 0) >= 199901L || \
    defined(_NETBSD_SOURCE)
#define LLONG_MIN       (-__LONG_LONG_MAX__-1LL) /* min signed long long */
#define LLONG_MAX       __LONG_LONG_MAX__       /* max signed long long */
#define ULLONG_MAX      (2ULL*LLONG_MAX+1ULL)   /* max unsigned long long */
#endif

#if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
    defined(_NETBSD_SOURCE)
#define SSIZE_MAX       LONG_MAX        /* max value for a ssize_t */

#if defined(_NETBSD_SOURCE)
#define SSIZE_MIN       LONG_MIN        /* min value for a ssize_t */
#define SIZE_T_MAX      ULONG_MAX       /* max value for a size_t */

#define UQUAD_MAX       ULLONG_MAX      /* max unsigned quad */
#define QUAD_MAX        LLONG_MAX       /* max signed quad */
#define QUAD_MIN        LLONG_MIN       /* min signed quad */

#endif /* _NETBSD_SOURCE */
#endif /* _POSIX_C_SOURCE || _XOPEN_SOURCE || _NETBSD_SOURCE */

#if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
#define LONG_BIT        (__SIZEOF_LONG__ * 8)
#define WORD_BIT        (__SIZEOF_INT__ * 8)

#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__

#ifdef __LDBL_DIG__
#define LDBL_DIG        __LDBL_DIG__
#define LDBL_MAX        __LDBL_MAX__
#define LDBL_MIN        __LDBL_MIN__
#endif

#endif /* _XOPEN_SOURCE || _NETBSD_SOURCE */

#endif /* _SYS_COMMON_LIMITS_H_ */