#ifndef _LIMITS_H
#define _LIMITS_H
+#include <features.h>
+
/* Most limits are system-specific */
#include <bits/limits.h>
+/* Support signed or unsigned plain-char */
+
+#if '\0'-1 > 0
+#define CHAR_MIN 0
+#define CHAR_MAX 255
+#else
+#define CHAR_MIN (-128)
+#define CHAR_MAX 127
+#endif
+
/* Some universal constants... */
#define CHAR_BIT 8
#define SCHAR_MIN (-128)
#define SCHAR_MAX 127
#define UCHAR_MAX 255
-#define CHAR_MIN (-128)
-#define CHAR_MAX 127
#define SHRT_MIN (-1-0x7fff)
#define SHRT_MAX 0x7fff
#define USHRT_MAX 0xffff
#define MB_LEN_MAX 4
#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
- || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE)
+ || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
#define PIPE_BUF 4096
+#ifdef PAGE_SIZE
#define PAGESIZE PAGE_SIZE
+#endif
#define FILESIZEBITS 64
#define NAME_MAX 255
#define SYMLINK_MAX 255
#define WORD_BIT 32
#define SSIZE_MAX LONG_MAX
#define TZNAME_MAX 6
-#define TTY_NAME_MAX 20
+#define TTY_NAME_MAX 32
#define HOST_NAME_MAX 255
/* Implementation choices... */
-#define PTHREAD_KEYS_MAX 1024
-#define PTHREAD_STACK_MIN PAGE_SIZE
+#define PTHREAD_KEYS_MAX 128
+#define PTHREAD_STACK_MIN 2048
#define PTHREAD_DESTRUCTOR_ITERATIONS 4
#define SEM_VALUE_MAX 0x7fffffff
#define SEM_NSEMS_MAX 256
#define DELAYTIMER_MAX 0x7fffffff
#define MQ_PRIO_MAX 32768
+#define LOGIN_NAME_MAX 256
/* Arbitrary numbers... */
#define NL_ARGMAX 9
#define NL_LANGMAX 32
#define NL_MSGMAX 32767
-#define NL_NMAX (MB_LEN_MAX*4)
#define NL_SETMAX 255
#define NL_TEXTMAX 2048
#endif
+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) \
+ || (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE+0 < 700)
+
+#define NL_NMAX 16
+
+#endif
+
/* POSIX/SUS requirements follow. These numbers come directly
* from SUS and have nothing to do with the host system. */