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Diffstat (limited to 'include/limits.h')
| -rw-r--r-- | include/limits.h | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/include/limits.h b/include/limits.h new file mode 100644 index 000000000..8b59c8208 --- /dev/null +++ b/include/limits.h @@ -0,0 +1,140 @@ +/* Copyright (C) 1991, 1992 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 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. */ + +/* + * ANSI Standard: 4.14/2.2.4.2 Limits of integral types <limits.h> + */ + +#ifndef _LIMITS_H + +#define _LIMITS_H 1 +#include <features.h> + +#ifdef __USE_POSIX +/* POSIX adds things to <limits.h>. */ +#include <posix1_lim.h> +#endif + +#ifdef __USE_POSIX2 +#include <posix2_lim.h> +#endif + + +/* Only if gcc 2.x is used and -traditional is not used, we can use + * #include_next. +#if __GNUC__ >= 2 && __STDC__ + */ +#if __GNUC__ >= 2 + + /* Have we done that? */ +# if !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> +# endif + +#else /* Not GCC 2. */ + +/* We don't have #include_next. + Define ANSI <limits.h> for standard 32-bit words. */ + +/* These assume 8-bit `char's, 16-bit `short int's, + 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 + +/* Minimum and maximum values a `signed char' can hold. */ +#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 + +/* 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 + +/* Minimum and maximum values a `signed short int' can hold. */ +#define SHRT_MIN (-32768) +#define SHRT_MAX 32767 + +/* Maximum value an `unsigned short int' can hold. (Minimum is 0.) */ +#define USHRT_MAX 65535 + +/* Minimum and maximum values a `signed int' can hold. */ +#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 + +/* Minimum and maximum values a `signed long int' can hold. */ +#define LONG_MIN INT_MIN +#define LONG_MAX INT_MAX + +/* Maximum value an `unsigned long int' can hold. (Minimum is 0.) */ +#define ULONG_MAX UINT_MAX + +#endif /* GCC 2. */ + + +#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 + +#define WORD_BIT 32 +#define LONG_BIT 32 + +#define FCHR_MAX 1048576 + +#endif /* __SVR4_I386_ABI_L1__ */ + +#endif /* limits.h */ |