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(KERNEL) 48 #ifdef XNU_KERNEL_PRIVATE 49 /* 50 * Xcode doesn't currently set up search paths correctly for Kernel extensions, 51 * so the clang headers are not seen in the correct order to use their limits. 52 */ 53 #endif 54 #define USE_CLANG_LIMITS 0 55 #else 56 #if defined(__has_feature) && __has_feature(modules) 57 #define USE_CLANG_LIMITS 1 58 #else 59 #define USE_CLANG_LIMITS 0 60 #endif 61 #endif 62 63 #undef MB_LEN_MAX 64 #define MB_LEN_MAX 6 /* Allow 31 bit UTF2 */ 65 66 #if !defined(_ANSI_SOURCE) && (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)) 67 #define CLK_TCK __DARWIN_CLK_TCK /* ticks per second */ 68 #endif /* !_ANSI_SOURCE && (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 69 70 #if (defined(__has_include) && __has_include(<__xnu_libcxx_sentinel.h>)) 71 72 #if !__has_include_next(<limits.h>) 73 #error Do not build with -nostdinc (use GCC_USE_STANDARD_INCLUDE_SEARCHING=NO) 74 #else 75 #include_next <limits.h> 76 #endif /* __has_include_next */ 77 78 #elif !USE_CLANG_LIMITS 79 80 #define CHAR_BIT 8 /* number of bits in a char */ 81 82 /* 83 * According to ANSI (section 2.2.4.2), the values below must be usable by 84 * #if preprocessing directives. Additionally, the expression must have the 85 * same type as would an expression that is an object of the corresponding 86 * type converted according to the integral promotions. The subtraction for 87 * INT_MIN and LONG_MIN is so the value is not unsigned; 2147483648 is an 88 * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2). 89 * These numbers work for pcc as well. The UINT_MAX and ULONG_MAX values 90 * are written as hex so that GCC will be quiet about large integer constants. 91 */ 92 #define SCHAR_MAX 127 /* min value for a signed char */ 93 #define SCHAR_MIN (-128) /* max value for a signed char */ 94 95 #define UCHAR_MAX 255 /* max value for an unsigned char */ 96 #define CHAR_MAX 127 /* max value for a char */ 97 #define CHAR_MIN (-128) /* min value for a char */ 98 99 #define USHRT_MAX 65535 /* max value for an unsigned short */ 100 #define SHRT_MAX 32767 /* max value for a short */ 101 #define SHRT_MIN (-32768) /* min value for a short */ 102 103 #define UINT_MAX 0xffffffff /* max value for an unsigned int */ 104 #define INT_MAX 2147483647 /* max value for an int */ 105 #define INT_MIN (-2147483647-1) /* min value for an int */ 106 107 #ifdef __LP64__ 108 #define ULONG_MAX 0xffffffffffffffffUL /* max unsigned long */ 109 #define LONG_MAX 0x7fffffffffffffffL /* max signed long */ 110 #define LONG_MIN (-0x7fffffffffffffffL-1) /* min signed long */ 111 #else /* !__LP64__ */ 112 #define ULONG_MAX 0xffffffffUL /* max unsigned long */ 113 #define LONG_MAX 2147483647L /* max signed long */ 114 #define LONG_MIN (-2147483647L-1) /* min signed long */ 115 #endif /* __LP64__ */ 116 117 #define ULLONG_MAX 0xffffffffffffffffULL /* max unsigned long long */ 118 #define LLONG_MAX 0x7fffffffffffffffLL /* max signed long long */ 119 #define LLONG_MIN (-0x7fffffffffffffffLL-1) /* min signed long long */ 120 121 #endif /* !USE_CLANG_LIMITS */ 122 123 #if !defined(_ANSI_SOURCE) 124 #ifdef __LP64__ 125 #define LONG_BIT 64 126 #else /* !__LP64__ */ 127 #define LONG_BIT 32 128 #endif /* __LP64__ */ 129 #define SSIZE_MAX LONG_MAX /* max value for a ssize_t */ 130 #define WORD_BIT 32 131 132 #if (!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)) || defined(_DARWIN_C_SOURCE) 133 #define SIZE_T_MAX ULONG_MAX /* max value for a size_t */ 134 135 #define UQUAD_MAX ULLONG_MAX 136 #define QUAD_MAX LLONG_MAX 137 #define QUAD_MIN LLONG_MIN 138 139 #endif /* (!_POSIX_C_SOURCE && !_XOPEN_SOURCE) || _DARWIN_C_SOURCE */ 140 #endif /* !_ANSI_SOURCE */ 141 142 #undef USE_CLANG_LIMITS 143 144 #endif /* defined (__arm__) || defined (__arm64__) */ 145 146 #endif /* _ARM_LIMITS_H_ */ 147