limits.h revision 1.9.16.1 1 1.9.16.1 mycroft /* $NetBSD: limits.h,v 1.9.16.1 1998/05/10 03:47:48 mycroft Exp $ */
2 1.6 cgd
3 1.1 deraadt /*
4 1.3 glass * Copyright (c) 1988, 1993
5 1.3 glass * The Regents of the University of California. All rights reserved.
6 1.1 deraadt *
7 1.1 deraadt * Redistribution and use in source and binary forms, with or without
8 1.1 deraadt * modification, are permitted provided that the following conditions
9 1.1 deraadt * are met:
10 1.1 deraadt * 1. Redistributions of source code must retain the above copyright
11 1.1 deraadt * notice, this list of conditions and the following disclaimer.
12 1.1 deraadt * 2. Redistributions in binary form must reproduce the above copyright
13 1.1 deraadt * notice, this list of conditions and the following disclaimer in the
14 1.1 deraadt * documentation and/or other materials provided with the distribution.
15 1.1 deraadt * 3. All advertising materials mentioning features or use of this software
16 1.1 deraadt * must display the following acknowledgement:
17 1.1 deraadt * This product includes software developed by the University of
18 1.1 deraadt * California, Berkeley and its contributors.
19 1.1 deraadt * 4. Neither the name of the University nor the names of its contributors
20 1.1 deraadt * may be used to endorse or promote products derived from this software
21 1.1 deraadt * without specific prior written permission.
22 1.1 deraadt *
23 1.1 deraadt * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 1.1 deraadt * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 1.1 deraadt * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 1.1 deraadt * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 1.1 deraadt * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 1.1 deraadt * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 1.1 deraadt * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 1.1 deraadt * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 1.1 deraadt * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 1.1 deraadt * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 1.1 deraadt * SUCH DAMAGE.
34 1.1 deraadt *
35 1.6 cgd * @(#)limits.h 8.3 (Berkeley) 1/4/94
36 1.1 deraadt */
37 1.1 deraadt
38 1.1 deraadt #define CHAR_BIT 8 /* number of bits in a char */
39 1.3 glass #define MB_LEN_MAX 6 /* Allow 31 bit UTF2 */
40 1.1 deraadt
41 1.1 deraadt /*
42 1.1 deraadt * According to ANSI (section 2.2.4.2), the values below must be usable by
43 1.1 deraadt * #if preprocessing directives. Additionally, the expression must have the
44 1.1 deraadt * same type as would an expression that is an object of the corresponding
45 1.1 deraadt * type converted according to the integral promotions. The subtraction for
46 1.1 deraadt * INT_MIN and LONG_MIN is so the value is not unsigned; 2147483648 is an
47 1.1 deraadt * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2).
48 1.3 glass * These numbers work for pcc as well. The UINT_MAX and ULONG_MAX values
49 1.3 glass * are written as hex so that GCC will be quiet about large integer constants.
50 1.1 deraadt */
51 1.1 deraadt #define SCHAR_MAX 127 /* min value for a signed char */
52 1.3 glass #define SCHAR_MIN (-128) /* max value for a signed char */
53 1.1 deraadt
54 1.1 deraadt #define UCHAR_MAX 255 /* max value for an unsigned char */
55 1.1 deraadt #define CHAR_MAX 127 /* max value for a char */
56 1.3 glass #define CHAR_MIN (-128) /* min value for a char */
57 1.1 deraadt
58 1.1 deraadt #define USHRT_MAX 65535 /* max value for an unsigned short */
59 1.1 deraadt #define SHRT_MAX 32767 /* max value for a short */
60 1.3 glass #define SHRT_MIN (-32768) /* min value for a short */
61 1.1 deraadt
62 1.3 glass #define UINT_MAX 0xffffffff /* max value for an unsigned int */
63 1.1 deraadt #define INT_MAX 2147483647 /* max value for an int */
64 1.1 deraadt #define INT_MIN (-2147483647-1) /* min value for an int */
65 1.1 deraadt
66 1.3 glass #define ULONG_MAX 0xffffffff /* max value for an unsigned long */
67 1.1 deraadt #define LONG_MAX 2147483647 /* max value for a long */
68 1.1 deraadt #define LONG_MIN (-2147483647-1) /* min value for a long */
69 1.1 deraadt
70 1.3 glass #if !defined(_ANSI_SOURCE)
71 1.3 glass #define SSIZE_MAX INT_MAX /* max value for a ssize_t */
72 1.3 glass
73 1.5 jtc #if !defined(_POSIX_SOURCE) && !defined(_XOPEN_SOURCE)
74 1.3 glass #define SIZE_T_MAX UINT_MAX /* max value for a size_t */
75 1.1 deraadt
76 1.3 glass /* GCC requires that quad constants be written as expressions. */
77 1.1 deraadt #define UQUAD_MAX ((u_quad_t)0-1) /* max value for a uquad_t */
78 1.1 deraadt /* max value for a quad_t */
79 1.1 deraadt #define QUAD_MAX ((quad_t)(UQUAD_MAX >> 1))
80 1.1 deraadt #define QUAD_MIN (-QUAD_MAX-1) /* min value for a quad_t */
81 1.1 deraadt
82 1.5 jtc #endif /* !_POSIX_SOURCE && !_XOPEN_SOURCE */
83 1.3 glass #endif /* !_ANSI_SOURCE */
84 1.5 jtc
85 1.5 jtc #if (!defined(_ANSI_SOURCE)&&!defined(_POSIX_SOURCE)) || defined(_XOPEN_SOURCE)
86 1.5 jtc #define LONG_BIT 32
87 1.5 jtc #define WORD_BIT 32
88 1.5 jtc
89 1.5 jtc #define DBL_DIG 15
90 1.9.16.1 mycroft #define DBL_MAX 1.7976931348623157E+308
91 1.9.16.1 mycroft #define DBL_MIN 2.2250738585072014E-308
92 1.5 jtc
93 1.5 jtc #define FLT_DIG 6
94 1.5 jtc #define FLT_MAX 3.40282347E+38F
95 1.5 jtc #define FLT_MIN 1.17549435E-38F
96 1.5 jtc #endif
97