1 /* $NetBSD: common_limits.h,v 1.4 2024/10/30 15:56:12 riastradh Exp $ */ 2 3 /*- 4 * Copyright (c) 2014 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Matt Thomas of 3am Software Foundry. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _SYS_COMMON_LIMITS_H_ 33 #define _SYS_COMMON_LIMITS_H_ 34 35 #include <sys/featuretest.h> 36 37 #define CHAR_BIT __CHAR_BIT__ /* number of bits in a char */ 38 39 #define SCHAR_MIN (-__SCHAR_MAX__-1) /* min value for a signed char */ 40 #define SCHAR_MAX __SCHAR_MAX__ /* max value for a signed char */ 41 #define UCHAR_MAX (2*SCHAR_MAX+1) /* max value for an unsigned char */ 42 43 #define SHRT_MIN (-__SHRT_MAX__-1) /* min value for a short */ 44 #define SHRT_MAX __SHRT_MAX__ /* max value for a short */ 45 #define USHRT_MAX (2*SHRT_MAX+1) /* max value for an unsigned short */ 46 47 #define INT_MIN (-__INT_MAX__-1) /* min value for an int */ 48 #define INT_MAX __INT_MAX__ /* max value for an int */ 49 #define UINT_MAX (2U*INT_MAX+1U) /* max value for an unsigned int */ 50 51 #define LONG_MIN (-__LONG_MAX__-1L) /* min value for a long */ 52 #define LONG_MAX __LONG_MAX__ /* max value for a long */ 53 #define ULONG_MAX (2UL*LONG_MAX+1UL) /* max unsigned long */ 54 55 #if defined(_ISOC99_SOURCE) || (__STDC_VERSION__ - 0) >= 199901L || \ 56 defined(_NETBSD_SOURCE) 57 #define LLONG_MIN (-__LONG_LONG_MAX__-1LL) /* min signed long long */ 58 #define LLONG_MAX __LONG_LONG_MAX__ /* max signed long long */ 59 #define ULLONG_MAX (2ULL*LLONG_MAX+1ULL) /* max unsigned long long */ 60 #endif 61 62 #if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \ 63 defined(_NETBSD_SOURCE) 64 #define SSIZE_MAX LONG_MAX /* max value for a ssize_t */ 65 66 #if defined(_NETBSD_SOURCE) 67 #define SSIZE_MIN LONG_MIN /* min value for a ssize_t */ 68 #define SIZE_T_MAX ULONG_MAX /* max value for a size_t */ 69 70 #define UQUAD_MAX ULLONG_MAX /* max unsigned quad */ 71 #define QUAD_MAX LLONG_MAX /* max signed quad */ 72 #define QUAD_MIN LLONG_MIN /* min signed quad */ 73 74 #endif /* _NETBSD_SOURCE */ 75 #endif /* _POSIX_C_SOURCE || _XOPEN_SOURCE || _NETBSD_SOURCE */ 76 77 #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE) 78 #define LONG_BIT (__SIZEOF_LONG__ * 8) 79 #define WORD_BIT (__SIZEOF_INT__ * 8) 80 81 #define DBL_DIG __DBL_DIG__ 82 #define DBL_MAX __DBL_MAX__ 83 #define DBL_MIN __DBL_MIN__ 84 85 #define FLT_DIG __FLT_DIG__ 86 #define FLT_MAX __FLT_MAX__ 87 #define FLT_MIN __FLT_MIN__ 88 89 #ifdef __LDBL_DIG__ 90 #define LDBL_DIG __LDBL_DIG__ 91 #define LDBL_MAX __LDBL_MAX__ 92 #define LDBL_MIN __LDBL_MIN__ 93 #endif 94 95 #endif /* _XOPEN_SOURCE || _NETBSD_SOURCE */ 96 97 #endif /* _SYS_COMMON_LIMITS_H_ */ 98