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47 lines
1.5 KiB
C
47 lines
1.5 KiB
C
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/*
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* $Id: limits.h,v 1.1 1997/02/28 04:42:07 gdr Exp $
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*/
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#ifndef _MACHINE_LIMITS_H_
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#define _MACHINE_LIMITS_H_
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#define CHAR_BIT 8 /* number of bits in a char */
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#define MB_LEN_MAX 1 /* Allow 31 bit UTF2 */
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/*
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* According to ANSI (section 2.2.4.2), the values below must be usable by
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* #if preprocessing directives. Additionally, the expression must have the
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* same type as would an expression that is an object of the corresponding
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* type converted according to the integral promotions.
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*/
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#define SCHAR_MAX 127 /* min value for a signed char */
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#define SCHAR_MIN (-128) /* max value for a signed char */
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#define CHAR_MAX 255u /* max value for a char */
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#define CHAR_MIN 0 /* min value for a char */
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#define UCHAR_MAX 255u /* max value for an unsigned char */
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#define USHRT_MAX 65535u /* max value for an unsigned short */
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#define SHRT_MAX 32767 /* max value for a short */
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#define SHRT_MIN (-32767-1) /* min value for a short */
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#define UINT_MAX 65535u /* max value for an unsigned int */
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#define INT_MAX 32767 /* max value for an int */
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#define INT_MIN (-32767-1) /* min value for an int */
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#define ULONG_MAX 4294967295u /* max value for an unsigned long */
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#define LONG_MAX 2147483647 /* max value for a long */
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#define LONG_MIN (-2147483647-1) /* min value for a long */
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#if !defined(_ANSI_SOURCE)
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#define SSIZE_MAX LONG_MAX /* max value for a ssize_t */
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#if !defined(_POSIX_SOURCE)
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#define SIZE_T_MAX ULONG_MAX /* max value for a size_t */
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#endif /* !_POSIX_SOURCE */
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#endif /* !_ANSI_SOURCE */
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#endif /* !_MACHINE_LIMITS_H_ */
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