2 /* From: NetBSD: limits.h,v 1.3 1997/04/06 08:47:31 cgd Exp */
5 * Copyright (c) 1988, 1993
6 * The Regents of the University of California. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * @(#)limits.h 8.3 (Berkeley) 1/4/94
39 #define CHAR_BIT 8 /* number of bits in a char */
40 #define MB_LEN_MAX 6 /* Allow 31 bit UTF2 */
43 * According to ANSI (section 2.2.4.2), the values below must be usable by
44 * #if preprocessing directives. Additionally, the expression must have the
45 * same type as would an expression that is an object of the corresponding
46 * type converted according to the integral promotions. The subtraction for
47 * INT_MIN and LONG_MIN is so the value is not unsigned; 2147483648 is an
48 * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2).
49 * These numbers work for pcc as well. The UINT_MAX and ULONG_MAX values
50 * are written as hex so that GCC will be quiet about large integer constants.
52 #define SCHAR_MAX 0x7f /* max value for a signed char */
53 #define SCHAR_MIN (-0x7f-1) /* min value for a signed char */
55 #define UCHAR_MAX 0xffU /* max value for an unsigned char */
56 #define CHAR_MAX 0x7f /* max value for a char */
57 #define CHAR_MIN (-0x7f-1) /* min value for a char */
59 #define USHRT_MAX 0xffffU /* max value for an unsigned short */
60 #define SHRT_MAX 0x7fff /* max value for a short */
61 #define SHRT_MIN (-0x7fff-1) /* min value for a short */
63 #define UINT_MAX 0xffffffffU /* max value for an unsigned int */
64 #define INT_MAX 0x7fffffff /* max value for an int */
65 #define INT_MIN (-0x7fffffff-1) /* min value for an int */
67 #define ULONG_MAX 0xffffffffffffffffUL /* max for an unsigned long */
68 #define LONG_MAX 0x7fffffffffffffffL /* max for a long */
69 #define LONG_MIN (-0x7fffffffffffffffL-1) /* min for a long */
71 #if !defined(_ANSI_SOURCE)
72 #define SSIZE_MAX LONG_MAX /* max value for a ssize_t */
74 #if !defined(_POSIX_SOURCE) && !defined(_XOPEN_SOURCE)
75 #define SIZE_T_MAX ULONG_MAX /* max value for a size_t */
77 /* Quads and longs are the same on the alpha */
78 #define UQUAD_MAX (ULONG_MAX) /* max value for a uquad_t */
79 #define QUAD_MAX (LONG_MAX) /* max value for a quad_t */
80 #define QUAD_MIN (LONG_MIN) /* min value for a quad_t */
82 #endif /* !_POSIX_SOURCE && !_XOPEN_SOURCE */
83 #endif /* !_ANSI_SOURCE */
85 #if (!defined(_ANSI_SOURCE)&&!defined(_POSIX_SOURCE)) || defined(_XOPEN_SOURCE)
90 #define DBL_MAX 1.7976931348623157E+308
91 #define DBL_MIN 2.2250738585072014E-308
94 #define FLT_MAX 3.40282347E+38F
95 #define FLT_MIN 1.17549435E-38F