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Diffstat (limited to 'sys/sys/limits.h')
| -rw-r--r-- | sys/sys/limits.h | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/sys/sys/limits.h b/sys/sys/limits.h new file mode 100644 index 0000000..1faba69 --- /dev/null +++ b/sys/sys/limits.h @@ -0,0 +1,125 @@ +/* $OpenBSD: limits.h,v 1.10 2012/06/30 20:21:10 guenther 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> + +/* Common definitions for limits.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 0xff /* max value for an unsigned char */ +#ifdef __CHAR_UNSIGNED__ +# 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 MB_LEN_MAX 4 /* Allow UTF-8 (RFC 3629) */ + +#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 */ + +#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 + +#if __XPG_VISIBLE || __POSIX_VISIBLE >= 200809 +# ifdef __LP64__ +# define LONG_BIT 64 +# else +# define LONG_BIT 32 +# endif +# define WORD_BIT 32 +#endif + +#if __XPG_VISIBLE < 600 +# include <machine/_float.h> + +/* XSI defines marked LEGACY in XPG5 and removed in IEEE Std 1003.1-2001 */ +# ifndef FLT_DIG +# define FLT_DIG __FLT_DIG +# endif +# ifndef FLT_MAX +# define FLT_MAX __FLT_MAX +# endif +# ifndef DBL_DIG +# define DBL_DIG __DBL_DIG +# endif +# ifndef DBL_MAX +# define DBL_MAX __DBL_MAX +# endif + +/* XSI defines marked LEGACY in XPG4v2 and removed in XPG5 */ +# if __XPG_VISIBLE < 500 +# ifndef FLT_MIN +# define FLT_MIN __FLT_MIN +# endif +# ifndef DBL_MIN +# define DBL_MIN __DBL_MIN +# endif +# endif + +#endif /* __XPG_VISIBLE < 600 */ + +#endif |