/* $FreeBSD$ */ /* From: NetBSD: limits.h,v 1.3 1997/04/06 08:47:31 cgd Exp */ /* * 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 */ #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 0xffU /* max value for an unsigned char */ #define CHAR_MAX 0x7f /* max value for a char */ #define CHAR_MIN (-0x7f-1) /* min value for a char */ #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 */ #define ULONG_MAX 0xffffffffffffffffUL /* max for an unsigned long */ #define LONG_MAX 0x7fffffffffffffffL /* max for a long */ #define LONG_MIN (-0x7fffffffffffffffL-1) /* min for a long */ /* Long longs and longs are the same size on the IA-64. */ /* max for an unsigned long long */ #define ULLONG_MAX 0xffffffffffffffffULL #define LLONG_MAX 0x7fffffffffffffffLL /* max for a long long */ #define LLONG_MIN (-0x7fffffffffffffffLL-1) /* min for a long long */ #if !defined(_ANSI_SOURCE) #define SSIZE_MAX LONG_MAX /* max value for a ssize_t */ #if !defined(_POSIX_SOURCE) && !defined(_XOPEN_SOURCE) #define SIZE_T_MAX ULONG_MAX /* max value for a size_t */ #define OFF_MAX LONG_MAX /* max value for a off_t */ #define OFF_MIN LONG_MIN /* min value for a off_t */ /* Quads and longs are the same. Ensure they stay in sync. */ #define UQUAD_MAX (ULONG_MAX) /* max value for a uquad_t */ #define QUAD_MAX (LONG_MAX) /* max value for a quad_t */ #define QUAD_MIN (LONG_MIN) /* min value for a quad_t */ #if !defined(__cplusplus) || defined(__STDC_LIMIT_MACROS) /* * ISO/IEC 9899:1999 * 7.18.2.1 Limits of exact-width integer types */ /* Minimum values of exact-width signed integer types. */ #define INT8_MIN (-0x7f-1) #define INT16_MIN (-0x7fff-1) #define INT32_MIN (-0x7fffffff-1) #define INT64_MIN (-0x7fffffffffffffffL-1) /* Maximum values of exact-width signed integer types. */ #define INT8_MAX 0x7f #define INT16_MAX 0x7fff #define INT32_MAX 0x7fffffff #define INT64_MAX 0x7fffffffffffffffL /* Maximum values of exact-width unsigned integer types. */ #define UINT8_MAX 0xff #define UINT16_MAX 0xffff #define UINT32_MAX 0xffffffffU #define UINT64_MAX 0xffffffffffffffffUL /* * ISO/IEC 9899:1999 * 7.18.2.2 Limits of minimum-width integer types */ /* Minimum values of minimum-width signed integer types. */ #define INT_LEAST8_MIN SCHAR_MIN #define INT_LEAST16_MIN SHRT_MIN #define INT_LEAST32_MIN INT_MIN #define INT_LEAST64_MIN LONG_MIN /* Maximum values of minimum-width signed integer types. */ #define INT_LEAST8_MAX SCHAR_MAX #define INT_LEAST16_MAX SHRT_MAX #define INT_LEAST32_MAX INT_MAX #define INT_LEAST64_MAX LONG_MAX /* Maximum values of minimum-width unsigned integer types. */ #define UINT_LEAST8_MAX UCHAR_MAX #define UINT_LEAST16_MAX USHRT_MAX #define UINT_LEAST32_MAX UINT_MAX #define UINT_LEAST64_MAX ULONG_MAX /* * ISO/IEC 9899:1999 * 7.18.2.3 Limits of fastest minimum-width integer types */ /* Minimum values of fastest minimum-width signed integer types. */ #define INT_FAST8_MIN INT_MIN #define INT_FAST16_MIN INT_MIN #define INT_FAST32_MIN INT_MIN #define INT_FAST64_MIN LONG_MIN /* Maximum values of fastest minimum-width signed integer types. */ #define INT_FAST8_MAX INT_MAX #define INT_FAST16_MAX INT_MAX #define INT_FAST32_MAX INT_MAX #define INT_FAST64_MAX LONG_MAX /* Maximum values of fastest minimum-width unsigned integer types. */ #define UINT_FAST8_MAX UINT_MAX #define UINT_FAST16_MAX UINT_MAX #define UINT_FAST32_MAX UINT_MAX #define UINT_FAST64_MAX ULONG_MAX /* * ISO/IEC 9899:1999 * 7.18.2.4 Limits of integer types capable of holding object pointers */ #define INTPTR_MIN LONG_MIN #define INTPTR_MAX LONG_MAX #define UINTPTR_MAX ULONG_MAX /* * ISO/IEC 9899:1999 * 7.18.2.5 Limits of greatest-width integer types */ #define INTMAX_MIN LONG_MIN #define INTMAX_MAX LONG_MAX #define UINTMAX_MAX ULONG_MAX /* * ISO/IEC 9899:1999 * 7.18.3 Limits of other integer types */ /* Limits of ptrdiff_t. */ #define PTRDIFF_MIN LONG_MIN #define PTRDIFF_MAX LONG_MAX /* Limits of sig_atomic_t. */ #define SIG_ATOMIC_MIN INT_MIN #define SIG_ATOMIC_MAX INT_MAX /* Limit of size_t. */ #define SIZE_MAX ULONG_MAX #ifndef WCHAR_MIN /* Also possibly defined in */ /* Limits of wchar_t. */ #define WCHAR_MIN INT_MIN #define WCHAR_MAX INT_MAX /* Limits of wint_t. */ #define WINT_MIN INT_MIN #define WINT_MAX INT_MAX #endif #endif /* !defined(__cplusplus) || defined(__STDC_LIMIT_MACROS) */ #endif /* !_POSIX_SOURCE && !_XOPEN_SOURCE */ #endif /* !_ANSI_SOURCE */ #if (!defined(_ANSI_SOURCE)&&!defined(_POSIX_SOURCE)) || defined(_XOPEN_SOURCE) #define LONG_BIT 64 #define WORD_BIT 32 #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