/*
        Copyright 07/20/98 Sun Microsystems, Inc. All Rights Reserved
*/


#if !defined(__STD_CLIMITS) && !defined(__STD_LIMITS_H)
#define __STD_CLIMITS

// C++ Standard functions and types

#include <sys/feature_tests.h>
#include <sys/isa_defs.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

#if defined(_CHAR_IS_SIGNED)
#define	CHAR_MIN	SCHAR_MIN	/* min value of a "char" */
#define	CHAR_MAX	SCHAR_MAX	/* max value of a "char" */
#elif defined(_CHAR_IS_UNSIGNED)
#define	CHAR_MIN	0		/* min value of a "char" */
#define	CHAR_MAX	UCHAR_MAX	/* max value of a "char" */
#else
#error "chars are signed or unsigned"
#endif

#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" */
#if defined(_LP64)
#define	LONG_MIN	(-9223372036854775807L-1L)
					/* min value of a "long int" */
#define	LONG_MAX	9223372036854775807L
					/* max value of a "long int" */
#define	ULONG_MAX	18446744073709551615UL
					/* max value of "unsigned long int" */
#else	/* _ILP32 */
#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" */
#endif

#define	ATEXIT_MAX	32	/* max # funcs may register with atexit() */
#define	_XOPEN_IOV_MAX	16	/* max # iovec/process with readv()/writev() */
#define	IOV_MAX		_XOPEN_IOV_MAX

#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		99999		/* 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		2147483647	/* 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

typedef long	clock_t;        /* duplicate typedefs allowed in C++ */

extern "C" long _sysconf(int);	/* System Private interface to sysconf() */
#define	CLK_TCK	((clock_t)_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 && ... */

#ifdef	__cplusplus
}
#endif

#endif /* __STD_limits */