limits.h revision 1.5
1/* 2 * Copyright (c) 1988 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * from: @(#)limits.h 7.2 (Berkeley) 6/28/90 34 * $Id: limits.h,v 1.5 1994/10/05 17:16:49 jtc Exp $ 35 */ 36 37#define CHAR_BIT 8 /* number of bits in a char */ 38#define MB_LEN_MAX 1 /* no multibyte characters */ 39 40#define SCHAR_MIN (-0x7f-1) /* max value for a signed char */ 41#define SCHAR_MAX 0x7f /* min value for a signed char */ 42 43#define UCHAR_MAX 0xff /* max value for an unsigned char */ 44#define CHAR_MAX 0x7f /* max value for a char */ 45#define CHAR_MIN (-0x7f-1) /* min value for a char */ 46 47#define USHRT_MAX 0xffff /* max value for an unsigned short */ 48#define SHRT_MAX 0x7fff /* max value for a short */ 49#define SHRT_MIN (-0x7fff-1) /* min value for a short */ 50 51#define UINT_MAX 0xffffffff /* max value for an unsigned int */ 52#define INT_MAX 0x7fffffff /* max value for an int */ 53#define INT_MIN (-0x7fffffff-1) /* min value for an int */ 54 55#define ULONG_MAX 0xffffffff /* max value for an unsigned long */ 56#define LONG_MAX 0x7fffffff /* max value for a long */ 57#define LONG_MIN (-0x7fffffff-1) /* min value for a long */ 58 59#if !defined(_ANSI_SOURCE) 60#define SSIZE_MAX INT_MAX /* max value for a ssize_t */ 61 62#if !defined(_POSIX_SOURCE) && !defined(_XOPEN_SOURCE) 63#define SIZE_T_MAX UINT_MAX /* max value for a size_t */ 64 65/* GCC requires that quad constants be written as expressions. */ 66#define UQUAD_MAX ((u_quad_t)0-1) /* max value for a uquad_t */ 67 /* max value for a quad_t */ 68#define QUAD_MAX ((quad_t)(UQUAD_MAX >> 1)) 69#define QUAD_MIN (-QUAD_MAX-1) /* min value for a quad_t */ 70 71#endif /* !_POSIX_SOURCE && !_XOPEN_SOURCE */ 72#endif /* !_ANSI_SOURCE */ 73 74#if (!defined(_ANSI_SOURCE)&&!defined(_POSIX_SOURCE)) || defined(_XOPEN_SOURCE) 75#define LONG_BIT 32 76#define WORD_BIT 32 77 78#define DBL_DIG 15 79#define DBL_MAX 1.7976931348623157E+308 80#define DBL_MIN 2.2250738585072014E-308 81 82#define FLT_DIG 6 83#define FLT_MAX 3.40282347E+38F 84#define FLT_MIN 1.17549435E-38F 85#endif 86