/attic/p42/SysCore/Include/limits.h

/************************************************************************

*                                                                       *

*	limits.h - type limits												*

*                                                                       *

*   Copyright (c) BrokenThorn Entertainment Co. All Rights Reserved.	*

*                                                                       *

************************************************************************/



#ifndef LIMITS_H

#define LIMITS_H



#include <float.h>



/*

 * Sizes of integral types

 */

#define	CHAR_BIT	8		/* max # of bits in a "char" */

#define	SCHAR_MIN	(-128)		/* min value of a "signed char" */

#define	SCHAR_MAX	127		/* max value of a "signed char" */

#define	UCHAR_MAX	255		/* max value of an "unsigned char" */



#define	MB_LEN_MAX	5



#define	CHAR_MIN	SCHAR_MIN	/* min value of a "char" */

#define	CHAR_MAX	SCHAR_MAX	/* max value of a "char" */



#define	SHRT_MIN	(-32768)	/* min value of a "short int" */

#define	SHRT_MAX	32767		/* max value of a "short int" */

#define	USHRT_MAX	65535		/* max value of "unsigned short int" */

#define	INT_MIN		(-2147483647-1)	/* min value of an "int" */

#define	INT_MAX		2147483647	/* max value of an "int" */

#define	UINT_MAX	4294967295U	/* max value of an "unsigned int" */

#define	LONG_MIN	(-2147483647L-1L)	/* min value of a "long int" */

#define	LONG_MAX	2147483647L	/* max value of a "long int" */

#define	ULONG_MAX	4294967295UL 	/* max value of "unsigned long int" */



#if defined(__EXTENSIONS__) || __STDC__ - 0 == 0 || \

	defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE)



#define	SSIZE_MAX	INT_MAX		/* max value of an "ssize_t" */



/*

 * ARG_MAX is calculated as follows:

 * NCARGS - ((sizeof(struct arg_hunk *))*(0x10000/(sizeof)(struct arg_hunk)))

 */

#define	ARG_MAX		1048320	/* max length of arguments to exec */



#define	LINK_MAX	32767	/* max # of links to a single file */



#ifndef MAX_CANON

#define	MAX_CANON	256	/* max bytes in line for canonical processing */

#endif



#ifndef MAX_INPUT

#define	MAX_INPUT	512	/* max size of a char input buffer */

#endif



#define	NGROUPS_MAX	16	/* max number of groups for a user */



#ifndef PATH_MAX

#define	PATH_MAX	1024	/* max # of characters in a path name */

#endif



#define	PIPE_BUF	5120	/* max # bytes atomic in write to a pipe */



#ifndef TMP_MAX

#define	TMP_MAX		17576	/* 26 * 26 * 26 */

#endif



/*

 * POSIX conformant definitions - An implementation may define

 * other symbols which reflect the actual implementation. Alternate

 * definitions may not be as restrictive as the POSIX definitions.

 */

#define	_POSIX_AIO_LISTIO_MAX	    2

#define	_POSIX_AIO_MAX		    1

#define	_POSIX_ARG_MAX		 4096

#define	_POSIX_CHILD_MAX	    6

#define	_POSIX_DELAYTIMER_MAX	   32

#define	_POSIX_LINK_MAX		    8

#define	_POSIX_MAX_CANON	  255

#define	_POSIX_MAX_INPUT	  255

#define	_POSIX_MQ_OPEN_MAX	    8

#define	_POSIX_MQ_PRIO_MAX	   32

#define	_POSIX_NAME_MAX		   14

#define	_POSIX_NGROUPS_MAX	    0

#define	_POSIX_OPEN_MAX		   16

#define	_POSIX_PATH_MAX		  255

#define	_POSIX_PIPE_BUF		  512

#define	_POSIX_RTSIG_MAX	    8

#define	_POSIX_SEM_NSEMS_MAX	  256

#define	_POSIX_SEM_VALUE_MAX	32767

#define	_POSIX_SIGQUEUE_MAX	   32

#define	_POSIX_SSIZE_MAX	32767

#define	_POSIX_STREAM_MAX	    8

#define	_POSIX_TIMER_MAX	   32

#define	_POSIX_TZNAME_MAX	    3

/* POSIX.1c conformant */

#define	_POSIX_LOGIN_NAME_MAX			9

#define	_POSIX_THREAD_DESTRUCTOR_INTERATION	4

#define	_POSIX_THREAD_KEYS_MAX			128

#define	_POSIX_THREAD_THREADS_MAX		64

#define	_POSIX_TTY_NAME_MAX			9



/*

 * POSIX.2 and XPG4-XSH4 conformant definitions

 */



#define	_POSIX2_BC_BASE_MAX		  99

#define	_POSIX2_BC_DIM_MAX		2048

#define	_POSIX2_BC_SCALE_MAX		  99

#define	_POSIX2_BC_STRING_MAX		1000

#define	_POSIX2_COLL_WEIGHTS_MAX	   2

#define	_POSIX2_EXPR_NEST_MAX		  32

#define	_POSIX2_LINE_MAX		2048

#define	_POSIX2_RE_DUP_MAX		 255



#define	BC_BASE_MAX		_POSIX2_BC_BASE_MAX

#define	BC_DIM_MAX		_POSIX2_BC_DIM_MAX

#define	BC_SCALE_MAX		_POSIX2_BC_SCALE_MAX

#define	BC_STRING_MAX		_POSIX2_BC_STRING_MAX

#define	COLL_WEIGHTS_MAX	_POSIX2_COLL_WEIGHTS_MAX

#define	EXPR_NEST_MAX		_POSIX2_EXPR_NEST_MAX

#define	LINE_MAX		_POSIX2_LINE_MAX

#define	RE_DUP_MAX		_POSIX2_RE_DUP_MAX



#endif /* defined(__EXTENSIONS__) ||  __STDC__ - 0 == 0 || ... */



#if defined(__EXTENSIONS__) || \

	(__STDC__ - 0 == 0 && !defined(_POSIX_C_SOURCE)) || \

	defined(_XOPEN_SOURCE)



#define	PASS_MAX	8	/* max # of characters in a password */



#define	CHARCLASS_NAME_MAX	14	/* max # bytes in a char class name */

#define	NL_ARGMAX	9	/* max value of "digit" in calls to the	*/

				/* NLS printf() and scanf() */

#define	NL_LANGMAX	14	/* max # of bytes in a LANG name */

#define	NL_MSGMAX	32767	/* max message number */

#define	NL_NMAX		1	/* max # bytes in N-to-1 mapping characters */

#define	NL_SETMAX	255	/* max set number */

#define	NL_TEXTMAX	2048	/* max set number */

#define	NZERO		20	/* default process priority */



#define	WORD_BIT	32	/* # of bits in a "word" or "int" */

#define	LONG_BIT	32	/* # of bits in a "long" */



#define	DBL_DIG		15	/* digits of precision of a "double" */

//#define	DBL_MAX		1.7976931348623157E+308	/* max decimal value of a */

						/* "double" */

//#define	DBL_MIN		2.2250738585072014E-308	/* min decimal value of a */

						/* "double" */

#define	FLT_DIG		6		/* digits of precision of a "float" */

//#define	FLT_MAX		3.402823466E+38F  /* max decimal value of a "float" */

//#define	FLT_MIN		1.175494351E-38F  /* min decimal value of a "float" */



#endif	/* defined(__EXTENSIONS__) || (__STDC__ - 0 == 0 && ... */



#if defined(__EXTENSIONS__) || (__STDC__ - 0 == 0 && \

	!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE))



#define	FCHR_MAX	1048576		/* max size of a file in bytes */

#define	PID_MAX		30000		/* max value for a process ID */



/*

 * POSIX 1003.1a, section 2.9.5, table 2-5 contains [NAME_MAX] and the

 * related text states:

 *

 * A definition of one of the values from Table 2-5 shall be omitted from the

 * <limits.h> on specific implementations where the corresponding value is

 * equal to or greater than the stated minimum, but where the value can vary

 * depending on the file to which it is applied. The actual value supported for

 * a specific pathname shall be provided by the pathconf() (5.7.1) function.

 *

 * This is clear that any machine supporting multiple file system types

 * and/or a network can not include this define, regardless of protection

 * by the _POSIX_SOURCE and _POSIX_C_SOURCE flags.

 *

 * #define	NAME_MAX	14

 */



#define	CHILD_MAX	25	/* max # of processes per user id */

#ifndef OPEN_MAX

#define	OPEN_MAX	64	/* max # of files a process can have open */

#endif



#define	PIPE_MAX	5120	/* max # bytes written to a pipe in a write */



#define	STD_BLK		1024	/* # bytes in a physical I/O block */

#define	UID_MAX		60002	/* max value for a user or group ID */

#define	USI_MAX		4294967295	/* max decimal value of an "unsigned" */

#define	SYSPID_MAX	1	/* max pid of system processes */



#ifndef SYS_NMLN		/* also defined in sys/utsname.h */

#define	SYS_NMLN	257	/* 4.0 size of utsname elements */

#endif



#ifndef CLK_TCK

extern long _sysconf(int);	/* System Private interface to sysconf() */

#define	CLK_TCK	_sysconf(3)	/* 3 is _SC_CLK_TCK */

#endif



#define	LOGNAME_MAX	8	/* max # of characters in a login name */

#define	TTYNAME_MAX	128	/* max # of characters in a tty name */



/*

 * Size constants for long long

 */

#define	LLONG_MIN	(-9223372036854775807LL-1LL)

#define	LLONG_MAX	9223372036854775807LL

#define	ULLONG_MAX	18446744073709551615ULL



#endif	/* defined(__EXTENSIONS__) || (__STDC__ - 0 == 0 && ... */



/*

 * POSIX.1c Note:

 * PTHREAD_STACK_MIN is also defined in <pthread.h>.

 */

#if	defined(__EXTENSIONS__) || (_POSIX_C_SOURCE >= 199506L)

#include <sys/unistd.h>

extern long _sysconf(int);	/* System Private interface to sysconf() */

#define	PTHREAD_STACK_MIN	_sysconf(_SC_THREAD_STACK_MIN)

#endif	/* defined(__EXTENSIONS__) || (_POSIX_C_SOURCE >= 199506L) */



#endif