Commit | Line | Data |
---|---|---|
48308c26 | 1 | /* |
df7778ec KB |
2 | * Copyright (c) 1988, 1993 |
3 | * The Regents of the University of California. All rights reserved. | |
48308c26 | 4 | * |
b702c21d | 5 | * %sccs.include.redist.c% |
48308c26 | 6 | * |
df7778ec | 7 | * @(#)limits.h 8.1 (Berkeley) %G% |
48308c26 KB |
8 | */ |
9 | ||
10 | #define CHAR_BIT 8 /* number of bits in a char */ | |
37bff619 KB |
11 | #define MB_LEN_MAX 6 /* Allow 31 bit UTF2 */ |
12 | ||
48308c26 | 13 | |
3f05951f KB |
14 | #define CLK_TCK 60 /* ticks per second */ |
15 | ||
16 | /* | |
17 | * According to ANSI (section 2.2.4.2), the values below must be usable by | |
18 | * #if preprocessing directives. Additionally, the expression must have the | |
19 | * same type as would an expression that is an object of the corresponding | |
20 | * type converted according to the integral promotions. The subtraction for | |
21 | * INT_MIN and LONG_MIN is so the value is not unsigned; 2147483648 is an | |
22 | * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2). | |
96157702 KB |
23 | * These numbers work for pcc as well. The UINT_MAX and ULONG_MAX values |
24 | * are written as hex so that GCC will be quiet about large integer constants. | |
3f05951f | 25 | */ |
81940c41 | 26 | #define SCHAR_MAX 127 /* min value for a signed char */ |
80d1623d | 27 | #define SCHAR_MIN (-128) /* max value for a signed char */ |
48308c26 | 28 | |
81940c41 KB |
29 | #define UCHAR_MAX 255 /* max value for an unsigned char */ |
30 | #define CHAR_MAX 127 /* max value for a char */ | |
80d1623d | 31 | #define CHAR_MIN (-128) /* min value for a char */ |
48308c26 | 32 | |
81940c41 KB |
33 | #define USHRT_MAX 65535 /* max value for an unsigned short */ |
34 | #define SHRT_MAX 32767 /* max value for a short */ | |
80d1623d | 35 | #define SHRT_MIN (-32768) /* min value for a short */ |
48308c26 | 36 | |
96157702 | 37 | #define UINT_MAX 0xffffffff /* max value for an unsigned int */ |
81940c41 KB |
38 | #define INT_MAX 2147483647 /* max value for an int */ |
39 | #define INT_MIN (-2147483647-1) /* min value for an int */ | |
48308c26 | 40 | |
96157702 | 41 | #define ULONG_MAX 0xffffffff /* max value for an unsigned long */ |
81940c41 KB |
42 | #define LONG_MAX 2147483647 /* max value for a long */ |
43 | #define LONG_MIN (-2147483647-1) /* min value for a long */ | |
ef4fd9aa KB |
44 | |
45 | /* Maximum/minimum values for types from <machine/include/ansi.h>. */ | |
46 | #ifndef _ANSI_SOURCE | |
8bf748be KB |
47 | |
48 | /* Quad constants must be written as expressions; #define GCC_ME_HARDER. */ | |
49 | #define UQUAD_MAX ((u_quad_t)0-1) /* max value for a uquad_t */ | |
50 | /* max value for a quad_t */ | |
51 | #define QUAD_MAX ((quad_t)(UQUAD_MAX >> 1)) | |
52 | #define QUAD_MIN (-QUAD_MAX-1) /* min value for a quad_t */ | |
53 | ||
ef4fd9aa KB |
54 | #define SIZE_T_MAX UINT_MAX |
55 | #endif |