2 * Copyright (c) 1988, 1993
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26 * @(#)limits.h 8.3 (Berkeley) 1/4/94
30 #ifndef _MACHINE__LIMITS_H_
31 #define _MACHINE__LIMITS_H_
34 * According to ANSI (section 2.2.4.2), the values below must be usable by
35 * #if preprocessing directives. Additionally, the expression must have the
36 * same type as would an expression that is an object of the corresponding
37 * type converted according to the integral promotions. The subtraction for
38 * INT_MIN, etc., is so the value is not unsigned; e.g., 0x80000000 is an
39 * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2).
40 * These numbers are for the default configuration of gcc. They work for
41 * some other compilers as well, but this should not be depended on.
44 #define __CHAR_BIT 8 /* number of bits in a char */
46 #define __SCHAR_MAX 0x7f /* max value for a signed char */
47 #define __SCHAR_MIN (-0x7f-1) /* min value for a signed char */
49 #define __UCHAR_MAX 0xffU /* max value for an unsigned char */
51 #define __USHRT_MAX 0xffffU /* max value for an unsigned short */
52 #define __SHRT_MAX 0x7fff /* max value for a short */
53 #define __SHRT_MIN (-0x7fff-1) /* min value for a short */
55 #define __UINT_MAX 0xffffffffU /* max value for an unsigned int */
56 #define __INT_MAX 0x7fffffff /* max value for an int */
57 #define __INT_MIN (-0x7fffffff-1) /* min value for an int */
59 #define __ULONG_MAX 0xffffffffffffffffUL /* max for an unsigned long */
60 #define __LONG_MAX 0x7fffffffffffffffL /* max for a long */
61 #define __LONG_MIN (-0x7fffffffffffffffL-1) /* min for a long */
63 /* Long longs and longs are the same size on sparc64. */
64 /* max for an unsigned long long */
65 #define __ULLONG_MAX 0xffffffffffffffffULL
66 #define __LLONG_MAX 0x7fffffffffffffffLL /* max for a long long */
67 #define __LLONG_MIN (-0x7fffffffffffffffLL-1) /* min for a long long */
69 #define __SSIZE_MAX __LONG_MAX /* max value for a ssize_t */
71 #define __SIZE_T_MAX __ULONG_MAX /* max value for a size_t */
73 #define __OFF_MAX __LONG_MAX /* max value for an off_t */
74 #define __OFF_MIN __LONG_MIN /* min value for an off_t */
76 /* Quads and longs are the same size. Ensure they stay in sync. */
77 #define __UQUAD_MAX (__ULONG_MAX) /* max value for a uquad_t */
78 #define __QUAD_MAX (__LONG_MAX) /* max value for a quad_t */
79 #define __QUAD_MIN (__LONG_MIN) /* min value for a quad_t */
84 /* Minimum signal stack size. */
85 #define __MINSIGSTKSZ (1024 * 4)
87 #endif /* !_MACHINE__LIMITS_H_ */