limits.h (5699B) - Raw
1 /* 2 * Copyright (c) 2000-2007 Apple Inc. All rights reserved. 3 */ 4 /* 5 * Copyright (c) 1988, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)limits.h 8.3 (Berkeley) 1/4/94 37 */ 38 39 #ifndef _ARM_LIMITS_H_ 40 #define _ARM_LIMITS_H_ 41 42 #if defined (__arm__) || defined (__arm64__) 43 44 #include <sys/cdefs.h> 45 #include <arm/_limits.h> 46 47 #if defined(__has_feature) && __has_feature(modules) 48 #define USE_CLANG_LIMITS 1 49 #else 50 #define USE_CLANG_LIMITS 0 51 #endif 52 53 #undef MB_LEN_MAX 54 #define MB_LEN_MAX 6 /* Allow 31 bit UTF2 */ 55 56 #if !defined(_ANSI_SOURCE) && (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)) 57 #define CLK_TCK __DARWIN_CLK_TCK /* ticks per second */ 58 #endif /* !_ANSI_SOURCE && (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 59 60 #if (defined(__has_include) && __has_include(<__xnu_libcxx_sentinel.h>)) 61 62 #if !__has_include_next(<limits.h>) 63 #error Do not build with -nostdinc (use GCC_USE_STANDARD_INCLUDE_SEARCHING=NO) 64 #else 65 #include_next <limits.h> 66 #endif /* __has_include_next */ 67 68 #elif !USE_CLANG_LIMITS 69 70 #define CHAR_BIT 8 /* number of bits in a char */ 71 72 /* 73 * According to ANSI (section 2.2.4.2), the values below must be usable by 74 * #if preprocessing directives. Additionally, the expression must have the 75 * same type as would an expression that is an object of the corresponding 76 * type converted according to the integral promotions. The subtraction for 77 * INT_MIN and LONG_MIN is so the value is not unsigned; 2147483648 is an 78 * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2). 79 * These numbers work for pcc as well. The UINT_MAX and ULONG_MAX values 80 * are written as hex so that GCC will be quiet about large integer constants. 81 */ 82 #define SCHAR_MAX 127 /* min value for a signed char */ 83 #define SCHAR_MIN (-128) /* max value for a signed char */ 84 85 #define UCHAR_MAX 255 /* max value for an unsigned char */ 86 #define CHAR_MAX 127 /* max value for a char */ 87 #define CHAR_MIN (-128) /* min value for a char */ 88 89 #define USHRT_MAX 65535 /* max value for an unsigned short */ 90 #define SHRT_MAX 32767 /* max value for a short */ 91 #define SHRT_MIN (-32768) /* min value for a short */ 92 93 #define UINT_MAX 0xffffffff /* max value for an unsigned int */ 94 #define INT_MAX 2147483647 /* max value for an int */ 95 #define INT_MIN (-2147483647-1) /* min value for an int */ 96 97 #ifdef __LP64__ 98 #define ULONG_MAX 0xffffffffffffffffUL /* max unsigned long */ 99 #define LONG_MAX 0x7fffffffffffffffL /* max signed long */ 100 #define LONG_MIN (-0x7fffffffffffffffL-1) /* min signed long */ 101 #else /* !__LP64__ */ 102 #define ULONG_MAX 0xffffffffUL /* max unsigned long */ 103 #define LONG_MAX 2147483647L /* max signed long */ 104 #define LONG_MIN (-2147483647L-1) /* min signed long */ 105 #endif /* __LP64__ */ 106 107 #define ULLONG_MAX 0xffffffffffffffffULL /* max unsigned long long */ 108 #define LLONG_MAX 0x7fffffffffffffffLL /* max signed long long */ 109 #define LLONG_MIN (-0x7fffffffffffffffLL-1) /* min signed long long */ 110 111 #endif /* !USE_CLANG_LIMITS */ 112 113 #if !defined(_ANSI_SOURCE) 114 #ifdef __LP64__ 115 #define LONG_BIT 64 116 #else /* !__LP64__ */ 117 #define LONG_BIT 32 118 #endif /* __LP64__ */ 119 #define SSIZE_MAX LONG_MAX /* max value for a ssize_t */ 120 #define WORD_BIT 32 121 122 #if (!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)) || defined(_DARWIN_C_SOURCE) 123 #define SIZE_T_MAX ULONG_MAX /* max value for a size_t */ 124 125 #define UQUAD_MAX ULLONG_MAX 126 #define QUAD_MAX LLONG_MAX 127 #define QUAD_MIN LLONG_MIN 128 129 #endif /* (!_POSIX_C_SOURCE && !_XOPEN_SOURCE) || _DARWIN_C_SOURCE */ 130 #endif /* !_ANSI_SOURCE */ 131 132 #undef USE_CLANG_LIMITS 133 134 #endif /* defined (__arm__) || defined (__arm64__) */ 135 136 #endif /* _ARM_LIMITS_H_ */