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-rw-r--r--include/limits.h171
1 files changed, 84 insertions, 87 deletions
diff --git a/include/limits.h b/include/limits.h
index e03e558fd..21520f3c9 100644
--- a/include/limits.h
+++ b/include/limits.h
@@ -1,54 +1,59 @@
-/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
+/* Copyright (C) 1991, 1992, 1996, 1997, 1998 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
-The GNU C Library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-Library General Public License for more details.
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 675 Mass Ave,
-Cambridge, MA 02139, USA. */
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
/*
- * ANSI Standard: 4.14/2.2.4.2 Limits of integral types <limits.h>
+ * ISO C Standard: 4.14/2.2.4.2 Limits of integral types <limits.h>
*/
-#ifndef _LIMITS_H
+#ifndef _LIBC_LIMITS_H_
+#define _LIBC_LIMITS_H_ 1
-#define _LIMITS_H 1
#include <features.h>
#ifdef __USE_POSIX
/* POSIX adds things to <limits.h>. */
-#include <posix1_lim.h>
+# include <bits/posix1_lim.h>
#endif
#ifdef __USE_POSIX2
-#include <posix2_lim.h>
+# include <bits/posix2_lim.h>
#endif
+#ifdef __USE_XOPEN
+# include <bits/xopen_lim.h>
+#endif
+
+
+/* Maximum length of any multibyte character in any locale.
+ We define this value here since the gcc header does not define
+ the correct value. */
+#define MB_LEN_MAX 6
-/* Only if gcc 2.x is used and -traditional is not used, we can use
- * #include_next.
-#if __GNUC__ >= 2 && __STDC__
- */
-#if __GNUC__ >= 2 && !defined(_GCC_LIMITS_H_) && !defined(_GCC_LIMITS_H)
- /* Get the compiler's limits.h, which defines all the ANSI
- * constants.
- */
- /* This tells it not to look for another. */
-# define _LIBC_LIMITS_H
-# define _LIBC_LIMITS_H_
-# include_next <limits.h>
-#else /* Not GCC 2. */
+/* If we are not using GNU CC we have to define all the symbols ourself.
+ Otherwise use gcc's definitions (see below). */
+#if !defined __GNUC__ || __GNUC__ < 2
+
+/* We only protect from multiple inclusion here, because all the other
+ #include's protect themselves, and in GCC 2 we may #include_next through
+ multiple copies of this file before we get to GCC's. */
+# ifndef _LIMITS_H
+# define _LIMITS_H 1
/* We don't have #include_next.
Define ANSI <limits.h> for standard 32-bit words. */
@@ -57,80 +62,72 @@ Cambridge, MA 02139, USA. */
and 32-bit `int's and `long int's. */
/* Number of bits in a `char'. */
-#define CHAR_BIT 8
-
-/* Maximum length of any multibyte character in any locale.
- Locale-writers should change this as necessary. */
-#define MB_LEN_MAX 1
+# define CHAR_BIT 8
/* Minimum and maximum values a `signed char' can hold. */
-#define SCHAR_MIN (-128)
-#define SCHAR_MAX 127
+# define SCHAR_MIN (-128)
+# define SCHAR_MAX 127
/* Maximum value an `unsigned char' can hold. (Minimum is 0.) */
-#ifdef __STDC__
-#define UCHAR_MAX 255U
-#else
-#define UCHAR_MAX 255
-#endif
+# define UCHAR_MAX 255
/* Minimum and maximum values a `char' can hold. */
-#ifdef __CHAR_UNSIGNED__
-#define CHAR_MIN 0
-#define CHAR_MAX UCHAR_MAX
-#else
-#define CHAR_MIN SCHAR_MIN
-#define CHAR_MAX SCHAR_MAX
-#endif
+# ifdef __CHAR_UNSIGNED__
+# define CHAR_MIN 0
+# define CHAR_MAX UCHAR_MAX
+# else
+# define CHAR_MIN SCHAR_MIN
+# define CHAR_MAX SCHAR_MAX
+# endif
/* Minimum and maximum values a `signed short int' can hold. */
-#define SHRT_MIN (-32768)
-#define SHRT_MAX 32767
+# define SHRT_MIN (-32768)
+# define SHRT_MAX 32767
/* Maximum value an `unsigned short int' can hold. (Minimum is 0.) */
-#define USHRT_MAX 65535
+# define USHRT_MAX 65535
/* Minimum and maximum values a `signed int' can hold. */
-#define INT_MIN (- INT_MAX - 1)
-#define INT_MAX 2147483647
+# define INT_MIN (-INT_MAX - 1)
+# define INT_MAX 2147483647
/* Maximum value an `unsigned int' can hold. (Minimum is 0.) */
-#ifdef __STDC__
-#define UINT_MAX 4294967295U
-#else
-#define UINT_MAX 4294967295
-#endif
+# ifdef __STDC__
+# define UINT_MAX 4294967295U
+# else
+# define UINT_MAX 4294967295
+# endif
/* Minimum and maximum values a `signed long int' can hold. */
-#define LONG_MIN INT_MIN
-#define LONG_MAX INT_MAX
+# ifdef __alpha__
+# define LONG_MAX 9223372036854775807L
+# else
+# define LONG_MAX 2147483647L
+# endif
+# define LONG_MIN (-LONG_MAX - 1L)
/* Maximum value an `unsigned long int' can hold. (Minimum is 0.) */
-#define ULONG_MAX UINT_MAX
-
+# ifdef __alpha__
+# define ULONG_MAX 18446744073709551615UL
+# else
+# ifdef __STDC__
+# define ULONG_MAX 4294967295UL
+# else
+# define ULONG_MAX 4294967295L
+# endif
+# endif
+
+# endif /* limits.h */
#endif /* GCC 2. */
+#endif /* !_LIBC_LIMITS_H_ */
-#ifndef RAND_MAX
-/* The largest number rand will return (same as INT_MAX). */
-#define RAND_MAX INT_MAX
-#endif
-
-#ifdef __SVR4_I386_ABI_L1__
-
-#define NL_ARGMAX 9
-#define NL_LANGMAX 14
-#define NL_MSGMAX 32767
-#define NL_NMAX 1
-#define NL_SETMAX 255
-#define NL_TEXTMAX 255
-#define NZERO 20
+ /* Get the compiler's limits.h, which defines almost all the ISO constants.
-#define WORD_BIT 32
-#define LONG_BIT 32
-
-#define FCHR_MAX 1048576
-
-#endif /* __SVR4_I386_ABI_L1__ */
-
-#endif /* limits.h */
+ We put this #include_next outside the double inclusion check because
+ it should be possible to include this file more than once and still get
+ the definitions from gcc's header. */
+#if defined __GNUC__ && !defined _GCC_LIMITS_H_
+/* `_GCC_LIMITS_H_' is what GCC's file defines. */
+# include_next <limits.h>
+#endif