Macros
#define	CHAR_BIT 8

#define	CHAR_MAX 127

#define	CHAR_MIN (-128)

#define	SCHAR_MAX 127

#define	SCHAR_MIN (-128)

#define	UCHAR_MAX 255

#define	SHRT_MAX 32767

#define	SHRT_MIN (-32768)

#define	INT_MAX 2147483647

#define	INT_MIN (-2147483647-1)

#define	LONG_MAX 2147483647L

#define	LONG_MIN (-2147483647L-1L)

#define	USHRT_MAX 65535

#define	UINT_MAX 4294967295U

#define	ULONG_MAX 4294967295UL

#define	ARG_MAX 127 /* Max length of arg to exec() */

#define	CHILD_MAX 1 /* Max processes per user */

#define	CLK_TCK 100 /* Number of clock ticks per second */

#define	NGROUPS_MAX 0 /* Max group IDs per process */

#define	OPEN_MAX 50 /* Max open files per process */

#define	PASS_MAX 8 /* Max bytes in password */

#define	_POSIX_STREAM_MAX 8 /* Max open stdio FILEs */

#define	TZNAME_MAX 50 /* Max length of timezone name */

#define	BC_BASE_MAX 99 /* Largest ibase and obase for bc */

#define	BC_DIM_MAX 2048 /* Max array elements for bc */

#define	BC_SCALE_MAX 99 /* Max scale value for bc */

#define	COLL_ELEM_MAX 4 /* Max bytes in collation element */

#define	EXPR_NEST_MAX 32 /* Max nesting of (...) for expr */

#define	LINE_MAX 2048 /* Max length in bytes of input line */

#define	PASTE_FILES_MAX 12 /* Max file operands for paste */

#define	RE_DUP_MAX 255 /* Max regular expressions permitted */

#define	SED_PATTERN_MAX 20480 /* Max size in bytes of sed pattern */

#define	SENDTO_MAX 90000 /* Max bytes of message for sendto */

#define	SORT_LINE_MAX 20480 /* Max bytes of input line for sort */

#define	ATEXIT_MAX INT_MAX /* Max atexit() funcs */

#define	LINK_MAX 1 /* Max links to a single file */

#define	MAX_CANON 127 /* Max bytes in TTY canonical input */

#define	MAX_INPUT 127 /* Max bytes in TTY input queue */

#define	NAME_MAX 12 /* Max bytes in a filename */

#define	PATH_MAX 80 /* Max bytes in a pathname */

#define	PIPE_BUF 0 /* Max bytes for atomic pipe writes */

Macro Definition Documentation

◆ _POSIX_STREAM_MAX

#define _POSIX_STREAM_MAX 8 /* Max open stdio FILEs */

Definition at line 42 of file limits.h.

◆ ARG_MAX

#define ARG_MAX 127 /* Max length of arg to exec() */

Definition at line 36 of file limits.h.

◆ ATEXIT_MAX

#define ATEXIT_MAX INT_MAX /* Max atexit() funcs */

Definition at line 57 of file limits.h.

◆ BC_BASE_MAX

#define BC_BASE_MAX 99 /* Largest ibase and obase for bc */

Definition at line 45 of file limits.h.

◆ BC_DIM_MAX

#define BC_DIM_MAX 2048 /* Max array elements for bc */

Definition at line 46 of file limits.h.

◆ BC_SCALE_MAX

#define BC_SCALE_MAX 99 /* Max scale value for bc */

Definition at line 47 of file limits.h.

◆ CHAR_BIT

#define CHAR_BIT 8

Definition at line 5 of file limits.h.

◆ CHAR_MAX

#define CHAR_MAX 127

Definition at line 7 of file limits.h.

◆ CHAR_MIN

#define CHAR_MIN (-128)

Definition at line 9 of file limits.h.

◆ CHILD_MAX

#define CHILD_MAX 1 /* Max processes per user */

Definition at line 37 of file limits.h.

◆ CLK_TCK

#define CLK_TCK 100 /* Number of clock ticks per second */

Definition at line 38 of file limits.h.

◆ COLL_ELEM_MAX

#define COLL_ELEM_MAX 4 /* Max bytes in collation element */

Definition at line 48 of file limits.h.

◆ EXPR_NEST_MAX

#define EXPR_NEST_MAX 32 /* Max nesting of (...) for expr */

Definition at line 49 of file limits.h.

◆ INT_MAX

#define INT_MAX 2147483647

Definition at line 21 of file limits.h.

◆ INT_MIN

#define INT_MIN (-2147483647-1)

Definition at line 23 of file limits.h.

◆ LINE_MAX

#define LINE_MAX 2048 /* Max length in bytes of input line */

Definition at line 50 of file limits.h.

◆ LINK_MAX

#define LINK_MAX 1 /* Max links to a single file */

Definition at line 60 of file limits.h.

◆ LONG_MAX

#define LONG_MAX 2147483647L

Definition at line 25 of file limits.h.

◆ LONG_MIN

#define LONG_MIN (-2147483647L-1L)

Definition at line 27 of file limits.h.

◆ MAX_CANON

#define MAX_CANON 127 /* Max bytes in TTY canonical input */

Definition at line 61 of file limits.h.

◆ MAX_INPUT

#define MAX_INPUT 127 /* Max bytes in TTY input queue */

Definition at line 62 of file limits.h.

◆ NAME_MAX

#define NAME_MAX 12 /* Max bytes in a filename */

Definition at line 63 of file limits.h.

◆ NGROUPS_MAX

#define NGROUPS_MAX 0 /* Max group IDs per process */

Definition at line 39 of file limits.h.

◆ OPEN_MAX

#define OPEN_MAX 50 /* Max open files per process */

Definition at line 40 of file limits.h.

◆ PASS_MAX

#define PASS_MAX 8 /* Max bytes in password */

Definition at line 41 of file limits.h.

◆ PASTE_FILES_MAX

#define PASTE_FILES_MAX 12 /* Max file operands for paste */

Definition at line 51 of file limits.h.

◆ PATH_MAX

#define PATH_MAX 80 /* Max bytes in a pathname */

Definition at line 64 of file limits.h.

◆ PIPE_BUF

#define PIPE_BUF 0 /* Max bytes for atomic pipe writes */

Definition at line 65 of file limits.h.

◆ RE_DUP_MAX

#define RE_DUP_MAX 255 /* Max regular expressions permitted */

Definition at line 52 of file limits.h.

◆ SCHAR_MAX

#define SCHAR_MAX 127

Definition at line 11 of file limits.h.

◆ SCHAR_MIN

#define SCHAR_MIN (-128)

Definition at line 13 of file limits.h.

◆ SED_PATTERN_MAX

#define SED_PATTERN_MAX 20480 /* Max size in bytes of sed pattern */

Definition at line 53 of file limits.h.

◆ SENDTO_MAX

#define SENDTO_MAX 90000 /* Max bytes of message for sendto */

Definition at line 54 of file limits.h.

◆ SHRT_MAX

#define SHRT_MAX 32767

Definition at line 17 of file limits.h.

◆ SHRT_MIN

#define SHRT_MIN (-32768)

Definition at line 19 of file limits.h.

◆ SORT_LINE_MAX

#define SORT_LINE_MAX 20480 /* Max bytes of input line for sort */

Definition at line 55 of file limits.h.

◆ TZNAME_MAX

#define TZNAME_MAX 50 /* Max length of timezone name */

Definition at line 43 of file limits.h.

◆ UCHAR_MAX

#define UCHAR_MAX 255

Definition at line 15 of file limits.h.

◆ UINT_MAX

#define UINT_MAX 4294967295U

Definition at line 31 of file limits.h.

◆ ULONG_MAX

#define ULONG_MAX 4294967295UL

Definition at line 33 of file limits.h.

◆ USHRT_MAX

#define USHRT_MAX 65535

Definition at line 29 of file limits.h.

Macros