1*53ee8cc1Swenshuai.xi /* Copyright (C) 1991, 1992, 1996, 1997, 1998, 1999, 2000, 2005 2*53ee8cc1Swenshuai.xi Free Software Foundation, Inc. 3*53ee8cc1Swenshuai.xi This file is part of the GNU C Library. 4*53ee8cc1Swenshuai.xi 5*53ee8cc1Swenshuai.xi The GNU C Library is free software; you can redistribute it and/or 6*53ee8cc1Swenshuai.xi modify it under the terms of the GNU Lesser General Public 7*53ee8cc1Swenshuai.xi License as published by the Free Software Foundation; either 8*53ee8cc1Swenshuai.xi version 2.1 of the License, or (at your option) any later version. 9*53ee8cc1Swenshuai.xi 10*53ee8cc1Swenshuai.xi The GNU C Library is distributed in the hope that it will be useful, 11*53ee8cc1Swenshuai.xi but WITHOUT ANY WARRANTY; without even the implied warranty of 12*53ee8cc1Swenshuai.xi MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13*53ee8cc1Swenshuai.xi Lesser General Public License for more details. 14*53ee8cc1Swenshuai.xi 15*53ee8cc1Swenshuai.xi You should have received a copy of the GNU Lesser General Public 16*53ee8cc1Swenshuai.xi License along with the GNU C Library; if not, write to the Free 17*53ee8cc1Swenshuai.xi Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 18*53ee8cc1Swenshuai.xi 02111-1307 USA. */ 19*53ee8cc1Swenshuai.xi 20*53ee8cc1Swenshuai.xi /* 21*53ee8cc1Swenshuai.xi * ISO C99 Standard: 7.10/5.2.4.2.1 Sizes of integer types <limits.h> 22*53ee8cc1Swenshuai.xi */ 23*53ee8cc1Swenshuai.xi 24*53ee8cc1Swenshuai.xi #ifndef _LIBC_LIMITS_H_ 25*53ee8cc1Swenshuai.xi #define _LIBC_LIMITS_H_ 1 26*53ee8cc1Swenshuai.xi 27*53ee8cc1Swenshuai.xi #include <features.h> 28*53ee8cc1Swenshuai.xi 29*53ee8cc1Swenshuai.xi 30*53ee8cc1Swenshuai.xi /* Maximum length of any multibyte character in any locale. 31*53ee8cc1Swenshuai.xi We define this value here since the gcc header does not define 32*53ee8cc1Swenshuai.xi the correct value. */ 33*53ee8cc1Swenshuai.xi #define MB_LEN_MAX 16 34*53ee8cc1Swenshuai.xi 35*53ee8cc1Swenshuai.xi 36*53ee8cc1Swenshuai.xi /* If we are not using GNU CC we have to define all the symbols ourself. 37*53ee8cc1Swenshuai.xi Otherwise use gcc's definitions (see below). */ 38*53ee8cc1Swenshuai.xi #if !defined __GNUC__ || __GNUC__ < 2 39*53ee8cc1Swenshuai.xi 40*53ee8cc1Swenshuai.xi /* We only protect from multiple inclusion here, because all the other 41*53ee8cc1Swenshuai.xi #include's protect themselves, and in GCC 2 we may #include_next through 42*53ee8cc1Swenshuai.xi multiple copies of this file before we get to GCC's. */ 43*53ee8cc1Swenshuai.xi # ifndef _LIMITS_H 44*53ee8cc1Swenshuai.xi # define _LIMITS_H 1 45*53ee8cc1Swenshuai.xi 46*53ee8cc1Swenshuai.xi #include <bits/wordsize.h> 47*53ee8cc1Swenshuai.xi 48*53ee8cc1Swenshuai.xi /* We don't have #include_next. 49*53ee8cc1Swenshuai.xi Define ANSI <limits.h> for standard 32-bit words. */ 50*53ee8cc1Swenshuai.xi 51*53ee8cc1Swenshuai.xi /* These assume 8-bit `char's, 16-bit `short int's, 52*53ee8cc1Swenshuai.xi and 32-bit `int's and `long int's. */ 53*53ee8cc1Swenshuai.xi 54*53ee8cc1Swenshuai.xi /* Number of bits in a `char'. */ 55*53ee8cc1Swenshuai.xi # define CHAR_BIT 8 56*53ee8cc1Swenshuai.xi 57*53ee8cc1Swenshuai.xi /* Minimum and maximum values a `signed char' can hold. */ 58*53ee8cc1Swenshuai.xi # define SCHAR_MIN (-128) 59*53ee8cc1Swenshuai.xi # define SCHAR_MAX 127 60*53ee8cc1Swenshuai.xi 61*53ee8cc1Swenshuai.xi /* Maximum value an `unsigned char' can hold. (Minimum is 0.) */ 62*53ee8cc1Swenshuai.xi # define UCHAR_MAX 255 63*53ee8cc1Swenshuai.xi 64*53ee8cc1Swenshuai.xi /* Minimum and maximum values a `char' can hold. */ 65*53ee8cc1Swenshuai.xi # ifdef __CHAR_UNSIGNED__ 66*53ee8cc1Swenshuai.xi # define CHAR_MIN 0 67*53ee8cc1Swenshuai.xi # define CHAR_MAX UCHAR_MAX 68*53ee8cc1Swenshuai.xi # else 69*53ee8cc1Swenshuai.xi # define CHAR_MIN SCHAR_MIN 70*53ee8cc1Swenshuai.xi # define CHAR_MAX SCHAR_MAX 71*53ee8cc1Swenshuai.xi # endif 72*53ee8cc1Swenshuai.xi 73*53ee8cc1Swenshuai.xi /* Minimum and maximum values a `signed short int' can hold. */ 74*53ee8cc1Swenshuai.xi # define SHRT_MIN (-32768) 75*53ee8cc1Swenshuai.xi # define SHRT_MAX 32767 76*53ee8cc1Swenshuai.xi 77*53ee8cc1Swenshuai.xi /* Maximum value an `unsigned short int' can hold. (Minimum is 0.) */ 78*53ee8cc1Swenshuai.xi # define USHRT_MAX 65535 79*53ee8cc1Swenshuai.xi 80*53ee8cc1Swenshuai.xi /* Minimum and maximum values a `signed int' can hold. */ 81*53ee8cc1Swenshuai.xi # define INT_MIN (-INT_MAX - 1) 82*53ee8cc1Swenshuai.xi # define INT_MAX 2147483647 83*53ee8cc1Swenshuai.xi 84*53ee8cc1Swenshuai.xi /* Maximum value an `unsigned int' can hold. (Minimum is 0.) */ 85*53ee8cc1Swenshuai.xi # define UINT_MAX 4294967295U 86*53ee8cc1Swenshuai.xi 87*53ee8cc1Swenshuai.xi /* Minimum and maximum values a `signed long int' can hold. */ 88*53ee8cc1Swenshuai.xi # if __WORDSIZE == 64 89*53ee8cc1Swenshuai.xi # define LONG_MAX 9223372036854775807L 90*53ee8cc1Swenshuai.xi # else 91*53ee8cc1Swenshuai.xi # define LONG_MAX 2147483647L 92*53ee8cc1Swenshuai.xi # endif 93*53ee8cc1Swenshuai.xi # define LONG_MIN (-LONG_MAX - 1L) 94*53ee8cc1Swenshuai.xi 95*53ee8cc1Swenshuai.xi /* Maximum value an `unsigned long int' can hold. (Minimum is 0.) */ 96*53ee8cc1Swenshuai.xi # if __WORDSIZE == 64 97*53ee8cc1Swenshuai.xi # define ULONG_MAX 18446744073709551615UL 98*53ee8cc1Swenshuai.xi # else 99*53ee8cc1Swenshuai.xi # define ULONG_MAX 4294967295UL 100*53ee8cc1Swenshuai.xi # endif 101*53ee8cc1Swenshuai.xi 102*53ee8cc1Swenshuai.xi # ifdef __USE_ISOC99 103*53ee8cc1Swenshuai.xi 104*53ee8cc1Swenshuai.xi /* Minimum and maximum values a `signed long long int' can hold. */ 105*53ee8cc1Swenshuai.xi # define LLONG_MAX 9223372036854775807LL 106*53ee8cc1Swenshuai.xi # define LLONG_MIN (-LLONG_MAX - 1LL) 107*53ee8cc1Swenshuai.xi 108*53ee8cc1Swenshuai.xi /* Maximum value an `unsigned long long int' can hold. (Minimum is 0.) */ 109*53ee8cc1Swenshuai.xi # define ULLONG_MAX 18446744073709551615ULL 110*53ee8cc1Swenshuai.xi 111*53ee8cc1Swenshuai.xi # endif /* ISO C99 */ 112*53ee8cc1Swenshuai.xi 113*53ee8cc1Swenshuai.xi # endif /* limits.h */ 114*53ee8cc1Swenshuai.xi #endif /* GCC 2. */ 115*53ee8cc1Swenshuai.xi 116*53ee8cc1Swenshuai.xi #endif /* !_LIBC_LIMITS_H_ */ 117*53ee8cc1Swenshuai.xi 118*53ee8cc1Swenshuai.xi /* Get the compiler's limits.h, which defines almost all the ISO constants. 119*53ee8cc1Swenshuai.xi 120*53ee8cc1Swenshuai.xi We put this #include_next outside the double inclusion check because 121*53ee8cc1Swenshuai.xi it should be possible to include this file more than once and still get 122*53ee8cc1Swenshuai.xi the definitions from gcc's header. */ 123*53ee8cc1Swenshuai.xi #if defined __GNUC__ && !defined _GCC_LIMITS_H_ 124*53ee8cc1Swenshuai.xi /* `_GCC_LIMITS_H_' is what GCC's file defines. */ 125*53ee8cc1Swenshuai.xi # include_next <limits.h> 126*53ee8cc1Swenshuai.xi #endif 127*53ee8cc1Swenshuai.xi 128*53ee8cc1Swenshuai.xi /* The <limits.h> files in some gcc versions don't define LLONG_MIN, 129*53ee8cc1Swenshuai.xi LLONG_MAX, and ULLONG_MAX. Instead only the values gcc defined for 130*53ee8cc1Swenshuai.xi ages are available. */ 131*53ee8cc1Swenshuai.xi #if defined __USE_ISOC99 && defined __GNUC__ 132*53ee8cc1Swenshuai.xi # ifndef LLONG_MIN 133*53ee8cc1Swenshuai.xi # define LLONG_MIN (-LLONG_MAX-1) 134*53ee8cc1Swenshuai.xi # endif 135*53ee8cc1Swenshuai.xi # ifndef LLONG_MAX 136*53ee8cc1Swenshuai.xi # define LLONG_MAX __LONG_LONG_MAX__ 137*53ee8cc1Swenshuai.xi # endif 138*53ee8cc1Swenshuai.xi # ifndef ULLONG_MAX 139*53ee8cc1Swenshuai.xi # define ULLONG_MAX (LLONG_MAX * 2ULL + 1) 140*53ee8cc1Swenshuai.xi # endif 141*53ee8cc1Swenshuai.xi #endif 142*53ee8cc1Swenshuai.xi 143*53ee8cc1Swenshuai.xi #ifdef __USE_POSIX 144*53ee8cc1Swenshuai.xi /* POSIX adds things to <limits.h>. */ 145*53ee8cc1Swenshuai.xi # include <bits/posix1_lim.h> 146*53ee8cc1Swenshuai.xi #endif 147*53ee8cc1Swenshuai.xi 148*53ee8cc1Swenshuai.xi #ifdef __USE_POSIX2 149*53ee8cc1Swenshuai.xi # include <bits/posix2_lim.h> 150*53ee8cc1Swenshuai.xi #endif 151*53ee8cc1Swenshuai.xi 152*53ee8cc1Swenshuai.xi #ifdef __USE_XOPEN 153*53ee8cc1Swenshuai.xi # include <bits/xopen_lim.h> 154*53ee8cc1Swenshuai.xi #endif 155