diff options
Diffstat (limited to 'include/limits.h')
| -rw-r--r-- | include/limits.h | 97 |
1 files changed, 61 insertions, 36 deletions
diff --git a/include/limits.h b/include/limits.h index 39ff69778..45cd6f253 100644 --- a/include/limits.h +++ b/include/limits.h @@ -1,23 +1,23 @@ -/* Copyright (C) 1991, 1992, 1996, 1997, 1998 Free Software Foundation, Inc. +/* Copyright (C) 1991, 92, 96, 97, 98, 99, 2000 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. + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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. + Lesser 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., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ /* - * ISO C Standard: 4.14/2.2.4.2 Limits of integral types <limits.h> + * ISO C99 Standard: 7.10/5.2.4.2.1 Sizes of integer types <limits.h> */ #ifndef _LIBC_LIMITS_H_ @@ -25,32 +25,25 @@ #include <features.h> -#ifdef __USE_POSIX -/* POSIX adds things to <limits.h>. */ -# include <bits/posix1_lim.h> -#endif - -#ifdef __USE_POSIX2 -# 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 +#define MB_LEN_MAX 16 +/* 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 +#include <bits/wordsize.h> + /* We don't have #include_next. Define ANSI <limits.h> for standard 32-bit words. */ @@ -88,14 +81,10 @@ # 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 +# define UINT_MAX 4294967295U /* Minimum and maximum values a `signed long int' can hold. */ -# ifdef __alpha__ +# if __WORDSIZE == 64 # define LONG_MAX 9223372036854775807L # else # define LONG_MAX 2147483647L @@ -103,17 +92,25 @@ # define LONG_MIN (-LONG_MAX - 1L) /* Maximum value an `unsigned long int' can hold. (Minimum is 0.) */ -# ifdef __alpha__ +# if __WORDSIZE == 64 # define ULONG_MAX 18446744073709551615UL # else -# ifdef __STDC__ -# define ULONG_MAX 4294967295UL -# else -# define ULONG_MAX 4294967295L -# endif +# define ULONG_MAX 4294967295UL # endif +# ifdef __USE_ISOC99 + +/* Minimum and maximum values a `signed long long int' can hold. */ +# define LLONG_MAX 9223372036854775807LL +# define LLONG_MIN (-LLONG_MAX - 1LL) + +/* Maximum value an `unsigned long long int' can hold. (Minimum is 0.) */ +# define ULLONG_MAX 18446744073709551615ULL + +# endif /* ISO C99 */ + # endif /* limits.h */ +#endif /* GCC 2. */ #endif /* !_LIBC_LIMITS_H_ */ @@ -125,4 +122,32 @@ #if defined __GNUC__ && !defined _GCC_LIMITS_H_ /* `_GCC_LIMITS_H_' is what GCC's file defines. */ # include_next <limits.h> + +/* The <limits.h> files in some gcc versions don't define LLONG_MIN, + LLONG_MAX, and ULLONG_MAX. Instead only the values gcc defined for + ages are available. */ +# ifdef __USE_ISOC99 +# ifndef LLONG_MIN +# define LLONG_MIN LONG_LONG_MIN +# endif +# ifndef LLONG_MAX +# define LLONG_MAX LONG_LONG_MAX +# endif +# ifndef ULLONG_MAX +# define ULLONG_MAX ULONG_LONG_MAX +# endif +# endif +#endif + +#ifdef __USE_POSIX +/* POSIX adds things to <limits.h>. */ +# include <bits/posix1_lim.h> +#endif + +#ifdef __USE_POSIX2 +# include <bits/posix2_lim.h> +#endif + +#ifdef __USE_XOPEN +# include <bits/xopen_lim.h> #endif |