DataMuseum.dk

top - download

    Length: 4571 (0x11db)
    Types: TextFile
    Notes: @(#)limits.h 13.4 (RC International) 91/09/23  */
    Names: »limits.h«

└─⟦50656ff4a⟧ Bits:30010538 TX 3.1 Coldstart
    └─⟦bbf173f5c⟧ »0004« 
        └─⟦this⟧ »./usr/include/limits.h« 

TextFile

/*	@(#)limits.h	13.4 (RC International) 91/09/23 	*/

#ifndef	_LIMITS_H
#define	_LIMITS_H

/*
** Various data type constants
*/
#define	CHAR_BIT	8		/* Number of bits in a char */
#define CHAR_MAX	255		/* Max value of unsigned char */
#define CHAR_MIN	0		/* Min value of unsigned char */
#define UCHAR_MAX	255		/* Max value of an unsigned char */
#define SCHAR_MAX	127		/* Max value of a signed char */
#define SCHAR_MIN	(-128)		/* Min value of a signed char */
#define SHRT_MAX	32767		/* Max value of a short */
#define SHRT_MIN	(-32768)	/* Min value of a short */
#define USHRT_MAX	65535		/* Max value of an unsigned short */
#define INT_MAX		2147483647	/* Max value of an int */
#define INT_MIN		(-2147483648)	/* Min value of an int */
#define UINT_MAX	4294967295	/* Max value of an unsigned int */
#define LONG_MAX	2147483647	/* Max value of a long */
#define LONG_MIN	(-2147483648)	/* Min value of an long */
#define ULONG_MAX	4294967295	/* Max value of an unsigned long */

#if (!defined(__STDC__) && !defined(_POSIX_SOURCE)) || defined(_XOPEN_SOURCE)
#define WORD_BIT	32		/* Number of bits in a word or int */
#define LONG_BIT	32		/* Number of bits in a long */
#define FLT_MAX		3.40282347e+38	/* Max value of a float */
#define FLT_MIN		1.17549435e-38	/* Min value of a float */
#define FLT_DIG		6		/* Digits of precision of a float */
#define DBL_MAX		1.7976931348623138e+308	/* Max value of a double */
#define DBL_MIN		2.225073858507201e-308	/* Min value of a double */
#define DBL_DIG		15		/* Digits of precision of a double */
#endif

#define MB_LEN_MAX	5		/* Useful POSIX constant */

/*
** POSIX invariant constants
*/
#if !defined(__STDC__) || defined(_POSIX_SOURCE) || defined(_XOPEN_SOURCE)
#define _POSIX_ARG_MAX		4096	/* Max exec argument string */
#define _POSIX_CHILD_MAX	6	/* Max number of child processes */
#define _POSIX_LINK_MAX		8	/* Max number of link count */
#define _POSIX_MAX_CANON	255	/* Max chars at canonical input */
#define _POSIX_MAX_INPUT	255	/* Max buffer space at term. input */
#define _POSIX_NAME_MAX		14	/* Max bytes in a filename */
#define _POSIX_NGROUPS_MAX	0	/* Max suppl. group id's */
#define _POSIX_OPEN_MAX		16	/* Max number of open files */
#define _POSIX_PATH_MAX		255	/* Max chars in a pathname */
#define _POSIX_PIPE_BUF		512	/* Max atom. chars at pipe-write */
#endif

/*
** POSIX constants
*/
#if !defined(__STDC__) || defined(_POSIX_SOURCE) || defined(_XOPEN_SOURCE)
#define ARG_MAX			10240	/* Max exec argument string */
#define LINK_MAX		16384	/* Max number of link count */
#define MAX_CANON		1024	/* Max chars at canonical input */
#define MAX_INPUT		1024	/* Max buffer space at term. input */
#define NGROUPS_MAX		8	/* Max suppl. group id's */
#define PATH_MAX		1024	/* Max chars in a pathname */
#define PIPE_BUF	       SHRT_MAX	/* Max atom. chars at pipe-write */
#define CHILD_MAX		50	/* Max number of child processes */
#define NAME_MAX		255	/* Max bytes in a filename */
#define OPEN_MAX		256	/* Max number of open files */
#endif

/*
** Various other constants.
** The value for TMP_MAX is really a minimum value.
*/
#if (!defined(__STDC__) && !defined(_POSIX_SOURCE)) || defined(_XOPEN_SOURCE)
#define NL_ARGMAX		9	/* Max digits for printf/scanf */
#define NL_LANGMAX		14	/* Max chars in a LANG name */
#define NL_NMAX			1       /* Max chars in N-to-1 mapping */
#ifndef NL_SETMAX
#define NL_MSGMAX		32767	/* Max message number */
#define NL_SETMAX		1024	/* Max set number */
#define NL_TEXTMAX		1024	/* Max chars in a message string */
#endif /* NL_SETMAX */
#define PASS_MAX		8	/* Max chars in a password */
#ifndef NZERO
#define NZERO			20	/* Default process priority */
#endif /* NZERO */
#endif

#if !defined(__STDC__) || defined(_POSIX_SOURCE) || defined(_XOPEN_SOURCE)
#ifndef	TMP_MAX
#define TMP_MAX			17576	/* Max unique names from tmpnam() */
#endif /* TMP_MAX */			/* 17576 = 26 * 26 * 26 */
#endif

/*
** Various useful constants from XPG 2 (withdrawn in XPG 3)
*/
#if !defined(__STDC__) && !defined(_POSIX_SOURCE) && !defined(_XOPEN_SOURCE)
#ifndef CLK_TCK
#define CLK_TCK			60	/* Clock ticks per second */
#endif /* CLK_TCK */
#define FCHR_MAX	2147483647	/* Max file size in chars */
#define STD_BLK			1024	/* Number of chars in physical i/o */
#define PID_MAX			INT_MAX	/* Max value of a process id */
#define UID_MAX		SHRT_MAX	/* Max value for user/group id */
#define PROC_MAX		404	/* Max no. of processes system wide */
#define SYS_OPEN		820	/* Max no. of open files system wide */
#define	USI_MAX		4294967295	/* Max decimal value of an "unsigned" */
#endif

#endif	/* _LIMITS_H */