import winsup-2000-02-17 snapshot

winsup/cygwin/include/limits.h

@@ -0,0 +1,144 @@
+/* limits.h
+
+   Copyright 1999, 2000 Cygnus Solutions.
+
+This file is part of Cygwin.
+
+This software is a copyrighted work licensed under the terms of the
+Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
+details. */
+
+#ifndef _LIMITS_H___
+#ifndef _MACH_MACHLIMITS_H_
+
+/* _MACH_MACHLIMITS_H_ is used on OSF/1.  */
+#define _LIMITS_H___
+#define _MACH_MACHLIMITS_H_
+
+/* Number of bits in a `char'.  */
+#undef CHAR_BIT
+#define CHAR_BIT 8
+
+/* Maximum length of a multibyte character.  */
+#ifndef MB_LEN_MAX
+#define MB_LEN_MAX 1
+#endif
+
+/* Minimum and maximum values a `signed char' can hold.  */
+#undef SCHAR_MIN
+#define SCHAR_MIN (-128)
+#undef SCHAR_MAX
+#define SCHAR_MAX 127
+
+/* Maximum value an `unsigned char' can hold.  (Minimum is 0).  */
+#undef UCHAR_MAX
+#define UCHAR_MAX 255
+
+/* Minimum and maximum values a `char' can hold.  */
+#ifdef __CHAR_UNSIGNED__
+#undef CHAR_MIN
+#define CHAR_MIN 0
+#undef CHAR_MAX
+#define CHAR_MAX 255
+#else
+#undef CHAR_MIN
+#define CHAR_MIN (-128)
+#undef CHAR_MAX
+#define CHAR_MAX 127
+#endif
+
+/* Minimum and maximum values a `signed short int' can hold.  */
+#undef SHRT_MIN
+#define SHRT_MIN (-32768)
+#undef SHRT_MAX
+#define SHRT_MAX 32767
+
+/* Maximum value an `unsigned short int' can hold.  (Minimum is 0).  */
+#undef USHRT_MAX
+#define USHRT_MAX 65535
+
+/* Minimum and maximum values a `signed int' can hold.  */
+#ifndef __INT_MAX__
+#define __INT_MAX__ 2147483647
+#endif
+#undef INT_MIN
+#define INT_MIN (-INT_MAX-1)
+#undef INT_MAX
+#define INT_MAX __INT_MAX__
+
+/* Maximum value an `unsigned int' can hold.  (Minimum is 0).  */
+#undef UINT_MAX
+#define UINT_MAX (INT_MAX * 2U + 1)
+
+/* Minimum and maximum values a `signed long int' can hold.
+   (Same as `int').  */
+#ifndef __LONG_MAX__
+#ifndef __alpha__
+#define __LONG_MAX__ 2147483647L
+#else
+#define __LONG_MAX__ 9223372036854775807L
+# endif /* __alpha__ */
+#endif
+#undef LONG_MIN
+#define LONG_MIN (-LONG_MAX-1)
+#undef LONG_MAX
+#define LONG_MAX __LONG_MAX__
+
+/* Maximum value an `unsigned long int' can hold.  (Minimum is 0).  */
+#undef ULONG_MAX
+#define ULONG_MAX (LONG_MAX * 2UL + 1)
+
+#if defined (__GNU_LIBRARY__) ? defined (__USE_GNU) : !defined (__STRICT_ANSI__)
+/* Minimum and maximum values a `signed long long int' can hold.  */
+#ifndef __LONG_LONG_MAX__
+#define __LONG_LONG_MAX__ 9223372036854775807LL
+#endif
+#undef LONG_LONG_MIN
+#define LONG_LONG_MIN (-LONG_LONG_MAX-1)
+#undef LONG_LONG_MAX
+#define LONG_LONG_MAX __LONG_LONG_MAX__
+
+/* Maximum value an `unsigned long long int' can hold.  (Minimum is 0).  */
+#undef ULONG_LONG_MAX
+#define ULONG_LONG_MAX (LONG_LONG_MAX * 2ULL + 1)
+#endif
+
+/* Maximum number of iovcnt in a writev */
+#undef IOV_MAX
+#define IOV_MAX (__INT_MAX__-1)
+
+/* Maximum size of ssize_t */
+#undef SSIZE_MAX
+#define SSIZE_MAX (__LONG_MAX__)
+
+/* Maximum length of a path */
+#define PATH_MAX (260 - 1 /*NUL*/)
+
+/* Max num groups for a user, value taken from NT documentation */
+/* Must match <sys/param.h> NGROUPS */
+#define NGROUPS_MAX 16
+
+/* WaitForMultipleObjects can't handle waiting for more than 64 objects.
+   This limits how many children we can fork/spawn off. */
+#define CHILD_MAX 63
+
+/* POSIX values */
+/* These should never vary from one system type to another */
+/* They represent the minimum values that POSIX systems must support.
+   POSIX-conforming apps must not require larger values. */
+#define	_POSIX_ARG_MAX		4096
+#define _POSIX_CHILD_MAX	6
+#define _POSIX_LINK_MAX		8
+#define _POSIX_MAX_CANON	255
+#define _POSIX_MAX_INPUT	255
+#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_SSIZE_MAX	32767
+#define _POSIX_STREAM_MAX	8
+#define _POSIX_TZNAME_MAX       3
+
+#endif /* _MACH_MACHLIMITS_H_ */
+#endif /* _LIMITS_H___ */