mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-30 12:04:07 +00:00
49545b3891
<stdint.h>. Previously, parts were defined in <machine/ansi.h> and
<machine/limits.h>. This resulted in two problems:
(1) Defining macros in <machine/ansi.h> gets in the way of that
header only defining types.
(2) Defining C99 limits in <machine/limits.h> adds pollution to
<limits.h>.
107 lines
4.6 KiB
C
107 lines
4.6 KiB
C
/*
|
|
* 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. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. 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.
|
|
*
|
|
* @(#)limits.h 8.3 (Berkeley) 1/4/94
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _MACHINE_LIMITS_H_
|
|
#define _MACHINE_LIMITS_H_
|
|
|
|
#define CHAR_BIT 8 /* number of bits in a char */
|
|
#define MB_LEN_MAX 6 /* Allow 31 bit UTF2 */
|
|
|
|
/*
|
|
* According to ANSI (section 2.2.4.2), the values below must be usable by
|
|
* #if preprocessing directives. Additionally, the expression must have the
|
|
* same type as would an expression that is an object of the corresponding
|
|
* type converted according to the integral promotions. The subtraction for
|
|
* INT_MIN, etc., is so the value is not unsigned; e.g., 0x80000000 is an
|
|
* unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2).
|
|
* These numbers are for the default configuration of gcc. They work for
|
|
* some other compilers as well, but this should not be depended on.
|
|
*/
|
|
#define SCHAR_MAX 0x7f /* max value for a signed char */
|
|
#define SCHAR_MIN (-0x7f - 1) /* min value for a signed char */
|
|
|
|
#define UCHAR_MAX 0xff /* 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 /* max value for a char */
|
|
#define CHAR_MIN SCHAR_MIN /* min value for a char */
|
|
#endif
|
|
|
|
#define USHRT_MAX 0xffff /* 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 */
|
|
|
|
/* Bad hack for gcc configured to give 64-bit longs. */
|
|
#ifdef _LARGE_LONG
|
|
#define ULONG_MAX 0xffffffffffffffffUL
|
|
#define LONG_MAX 0x7fffffffffffffffL
|
|
#define LONG_MIN (-0x7fffffffffffffffL - 1)
|
|
#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
|
|
|
|
/* max value for an unsigned long long */
|
|
#define ULLONG_MAX 0xffffffffffffffffULL
|
|
#define LLONG_MAX 0x7fffffffffffffffLL /* max value for a long long */
|
|
#define LLONG_MIN (-0x7fffffffffffffffLL - 1) /* min for a long long */
|
|
|
|
#if !defined(_ANSI_SOURCE)
|
|
#define SSIZE_MAX INT_MAX /* max value for a ssize_t */
|
|
|
|
#if !defined(_POSIX_SOURCE)
|
|
#define SIZE_T_MAX UINT_MAX /* max value for a size_t */
|
|
|
|
#define OFF_MAX LLONG_MAX /* max value for a off_t */
|
|
#define OFF_MIN LLONG_MIN /* min value for a off_t */
|
|
|
|
/* Quads and long longs are the same size. Ensure they stay in sync. */
|
|
#define UQUAD_MAX ULLONG_MAX /* max value for a uquad_t */
|
|
#define QUAD_MAX LLONG_MAX /* max value for a quad_t */
|
|
#define QUAD_MIN LLONG_MIN /* min value for a quad_t */
|
|
#endif /* !_POSIX_SOURCE */
|
|
#endif /* !_ANSI_SOURCE */
|
|
|
|
#endif /* !_MACHINE_LIMITS_H_ */
|