17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 57c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 67c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 77c478bd9Sstevel@tonic-gate * with the License. 87c478bd9Sstevel@tonic-gate * 97c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 107c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 117c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 127c478bd9Sstevel@tonic-gate * and limitations under the License. 137c478bd9Sstevel@tonic-gate * 147c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 157c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 167c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 177c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 187c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 197c478bd9Sstevel@tonic-gate * 207c478bd9Sstevel@tonic-gate * CDDL HEADER END 217c478bd9Sstevel@tonic-gate */ 227c478bd9Sstevel@tonic-gate /* 23*ba3594baSGarrett D'Amore * Copyright 2014 Garrett D'Amore <garrett@damore.org> 24*ba3594baSGarrett D'Amore * 257c478bd9Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 267c478bd9Sstevel@tonic-gate * Use is subject to license terms. 277c478bd9Sstevel@tonic-gate */ 287c478bd9Sstevel@tonic-gate 297c478bd9Sstevel@tonic-gate #ifndef _SYS_INT_LIMITS_H 307c478bd9Sstevel@tonic-gate #define _SYS_INT_LIMITS_H 317c478bd9Sstevel@tonic-gate 327c478bd9Sstevel@tonic-gate /* 337c478bd9Sstevel@tonic-gate * This file, <sys/int_limits.h>, is part of the Sun Microsystems implementation 347c478bd9Sstevel@tonic-gate * of <inttypes.h> as defined in the ISO C standard, ISO/IEC 9899:1999 357c478bd9Sstevel@tonic-gate * Programming language - C. 367c478bd9Sstevel@tonic-gate * 377c478bd9Sstevel@tonic-gate * Programs/Modules should not directly include this file. Access to the 387c478bd9Sstevel@tonic-gate * types defined in this file should be through the inclusion of one of the 397c478bd9Sstevel@tonic-gate * following files: 407c478bd9Sstevel@tonic-gate * 417c478bd9Sstevel@tonic-gate * <limits.h> This nested inclusion is disabled for strictly 427c478bd9Sstevel@tonic-gate * ANSI-C conforming compilations. The *_MIN 437c478bd9Sstevel@tonic-gate * definitions are not visible to POSIX or XPG 447c478bd9Sstevel@tonic-gate * conforming applications (due to what may be 457c478bd9Sstevel@tonic-gate * a bug in the specification - this is under 467c478bd9Sstevel@tonic-gate * investigation) 477c478bd9Sstevel@tonic-gate * 487c478bd9Sstevel@tonic-gate * <sys/inttypes.h> Provides the Kernel and Driver appropriate 497c478bd9Sstevel@tonic-gate * components of <inttypes.h>. 507c478bd9Sstevel@tonic-gate * 517c478bd9Sstevel@tonic-gate * <inttypes.h> For use by applications. 527c478bd9Sstevel@tonic-gate * 537c478bd9Sstevel@tonic-gate * See these files for more details. 547c478bd9Sstevel@tonic-gate */ 557c478bd9Sstevel@tonic-gate 567c478bd9Sstevel@tonic-gate #include <sys/feature_tests.h> 577c478bd9Sstevel@tonic-gate 587c478bd9Sstevel@tonic-gate #ifdef __cplusplus 597c478bd9Sstevel@tonic-gate extern "C" { 607c478bd9Sstevel@tonic-gate #endif 617c478bd9Sstevel@tonic-gate 627c478bd9Sstevel@tonic-gate /* 637c478bd9Sstevel@tonic-gate * Limits 647c478bd9Sstevel@tonic-gate * 657c478bd9Sstevel@tonic-gate * The following define the limits for the types defined in <sys/int_types.h>. 667c478bd9Sstevel@tonic-gate * 677c478bd9Sstevel@tonic-gate * INTMAX_MIN (minimum value of the largest supported signed integer type), 687c478bd9Sstevel@tonic-gate * INTMAX_MAX (maximum value of the largest supported signed integer type), 697c478bd9Sstevel@tonic-gate * and UINTMAX_MAX (maximum value of the largest supported unsigned integer 707c478bd9Sstevel@tonic-gate * type) can be set to implementation defined limits. 717c478bd9Sstevel@tonic-gate * 727c478bd9Sstevel@tonic-gate * NOTE : A programmer can test to see whether an implementation supports 737c478bd9Sstevel@tonic-gate * a particular size of integer by testing if the macro that gives the 747c478bd9Sstevel@tonic-gate * maximum for that datatype is defined. For example, if #ifdef UINT64_MAX 757c478bd9Sstevel@tonic-gate * tests false, the implementation does not support unsigned 64 bit integers. 767c478bd9Sstevel@tonic-gate * 777c478bd9Sstevel@tonic-gate * The type of these macros is intentionally unspecified. 787c478bd9Sstevel@tonic-gate * 797c478bd9Sstevel@tonic-gate * The types int8_t, int_least8_t, and int_fast8_t are not defined for ISAs 807c478bd9Sstevel@tonic-gate * where the ABI specifies "char" as unsigned when the translation mode is 817c478bd9Sstevel@tonic-gate * not ANSI-C. 827c478bd9Sstevel@tonic-gate */ 837c478bd9Sstevel@tonic-gate #define INT8_MAX (127) 847c478bd9Sstevel@tonic-gate #define INT16_MAX (32767) 857c478bd9Sstevel@tonic-gate #define INT32_MAX (2147483647) 867c478bd9Sstevel@tonic-gate #if defined(_LP64) 877c478bd9Sstevel@tonic-gate #define INT64_MAX (9223372036854775807L) 887c478bd9Sstevel@tonic-gate #elif defined(_LONGLONG_TYPE) 897c478bd9Sstevel@tonic-gate #define INT64_MAX (9223372036854775807LL) 907c478bd9Sstevel@tonic-gate #endif 917c478bd9Sstevel@tonic-gate 927c478bd9Sstevel@tonic-gate #define UINT8_MAX (255U) 937c478bd9Sstevel@tonic-gate #define UINT16_MAX (65535U) 947c478bd9Sstevel@tonic-gate #define UINT32_MAX (4294967295U) 957c478bd9Sstevel@tonic-gate #if defined(_LP64) 967c478bd9Sstevel@tonic-gate #define UINT64_MAX (18446744073709551615UL) 977c478bd9Sstevel@tonic-gate #elif defined(_LONGLONG_TYPE) 987c478bd9Sstevel@tonic-gate #define UINT64_MAX (18446744073709551615ULL) 997c478bd9Sstevel@tonic-gate #endif 1007c478bd9Sstevel@tonic-gate 1017c478bd9Sstevel@tonic-gate #ifdef INT64_MAX 1027c478bd9Sstevel@tonic-gate #define INTMAX_MAX INT64_MAX 1037c478bd9Sstevel@tonic-gate #else 1047c478bd9Sstevel@tonic-gate #define INTMAX_MAX INT32_MAX 1057c478bd9Sstevel@tonic-gate #endif 1067c478bd9Sstevel@tonic-gate 1077c478bd9Sstevel@tonic-gate #ifdef UINT64_MAX 1087c478bd9Sstevel@tonic-gate #define UINTMAX_MAX UINT64_MAX 1097c478bd9Sstevel@tonic-gate #else 1107c478bd9Sstevel@tonic-gate #define UINTMAX_MAX UINT32_MAX 1117c478bd9Sstevel@tonic-gate #endif 1127c478bd9Sstevel@tonic-gate 1137c478bd9Sstevel@tonic-gate #define INT_LEAST8_MAX INT8_MAX 1147c478bd9Sstevel@tonic-gate #define INT_LEAST16_MAX INT16_MAX 1157c478bd9Sstevel@tonic-gate #define INT_LEAST32_MAX INT32_MAX 1167c478bd9Sstevel@tonic-gate #ifdef INT64_MAX 1177c478bd9Sstevel@tonic-gate #define INT_LEAST64_MAX INT64_MAX 1187c478bd9Sstevel@tonic-gate #endif 1197c478bd9Sstevel@tonic-gate 1207c478bd9Sstevel@tonic-gate #define UINT_LEAST8_MAX UINT8_MAX 1217c478bd9Sstevel@tonic-gate #define UINT_LEAST16_MAX UINT16_MAX 1227c478bd9Sstevel@tonic-gate #define UINT_LEAST32_MAX UINT32_MAX 1237c478bd9Sstevel@tonic-gate #ifdef UINT64_MAX 1247c478bd9Sstevel@tonic-gate #define UINT_LEAST64_MAX UINT64_MAX 1257c478bd9Sstevel@tonic-gate #endif 1267c478bd9Sstevel@tonic-gate 1277c478bd9Sstevel@tonic-gate #define INT_FAST8_MAX INT8_MAX 1287c478bd9Sstevel@tonic-gate #define INT_FAST16_MAX INT16_MAX 1297c478bd9Sstevel@tonic-gate #define INT_FAST32_MAX INT32_MAX 1307c478bd9Sstevel@tonic-gate #ifdef INT64_MAX 1317c478bd9Sstevel@tonic-gate #define INT_FAST64_MAX INT64_MAX 1327c478bd9Sstevel@tonic-gate #endif 1337c478bd9Sstevel@tonic-gate 1347c478bd9Sstevel@tonic-gate #define UINT_FAST8_MAX UINT8_MAX 1357c478bd9Sstevel@tonic-gate #define UINT_FAST16_MAX UINT16_MAX 1367c478bd9Sstevel@tonic-gate #define UINT_FAST32_MAX UINT32_MAX 1377c478bd9Sstevel@tonic-gate #ifdef UINT64_MAX 1387c478bd9Sstevel@tonic-gate #define UINT_FAST64_MAX UINT64_MAX 1397c478bd9Sstevel@tonic-gate #endif 1407c478bd9Sstevel@tonic-gate 1417c478bd9Sstevel@tonic-gate /* 1427c478bd9Sstevel@tonic-gate * The following 2 macros are provided for testing whether the types 1437c478bd9Sstevel@tonic-gate * intptr_t and uintptr_t (integers large enough to hold a void *) are 1447c478bd9Sstevel@tonic-gate * defined in this header. They are needed in case the architecture can't 1457c478bd9Sstevel@tonic-gate * represent a pointer in any standard integral type. 1467c478bd9Sstevel@tonic-gate */ 1477c478bd9Sstevel@tonic-gate #if defined(_LP64) || defined(_I32LPx) 1487c478bd9Sstevel@tonic-gate #define INTPTR_MAX INT64_MAX 1497c478bd9Sstevel@tonic-gate #define UINTPTR_MAX UINT64_MAX 1507c478bd9Sstevel@tonic-gate #else 1517c478bd9Sstevel@tonic-gate #define INTPTR_MAX INT32_MAX 1527c478bd9Sstevel@tonic-gate #define UINTPTR_MAX UINT32_MAX 1537c478bd9Sstevel@tonic-gate #endif 1547c478bd9Sstevel@tonic-gate 1557c478bd9Sstevel@tonic-gate /* Maximum limits of ptrdiff_t defined in <sys/types.h> */ 1567c478bd9Sstevel@tonic-gate #if defined(_LP64) || defined(_I32LPx) 1577c478bd9Sstevel@tonic-gate #define PTRDIFF_MAX 9223372036854775807L 1587c478bd9Sstevel@tonic-gate #else 1597c478bd9Sstevel@tonic-gate #define PTRDIFF_MAX 2147483647 1607c478bd9Sstevel@tonic-gate #endif 1617c478bd9Sstevel@tonic-gate 1627c478bd9Sstevel@tonic-gate /* 1637c478bd9Sstevel@tonic-gate * Maximum value of a "size_t". SIZE_MAX was previously defined 1647c478bd9Sstevel@tonic-gate * in <limits.h>, however, the standards specify it be defined 1657c478bd9Sstevel@tonic-gate * in <stdint.h>. The <stdint.h> headers includes this header as 1667c478bd9Sstevel@tonic-gate * does <limits.h>. The value of SIZE_MAX should not deviate 1677c478bd9Sstevel@tonic-gate * from the value of ULONG_MAX defined <sys/types.h>. 1687c478bd9Sstevel@tonic-gate */ 1697c478bd9Sstevel@tonic-gate #if defined(_LP64) 1707c478bd9Sstevel@tonic-gate #define SIZE_MAX 18446744073709551615UL 1717c478bd9Sstevel@tonic-gate #else 1727c478bd9Sstevel@tonic-gate #define SIZE_MAX 4294967295UL 1737c478bd9Sstevel@tonic-gate #endif 1747c478bd9Sstevel@tonic-gate 1757c478bd9Sstevel@tonic-gate /* Maximum limit of sig_atomic_t defined in <sys/types.h> */ 1767c478bd9Sstevel@tonic-gate #ifndef SIG_ATOMIC_MAX 1777c478bd9Sstevel@tonic-gate #define SIG_ATOMIC_MAX 2147483647 1787c478bd9Sstevel@tonic-gate #endif 1797c478bd9Sstevel@tonic-gate 1807c478bd9Sstevel@tonic-gate /* 1817c478bd9Sstevel@tonic-gate * Maximum limit of wchar_t. The WCHAR_* macros are also 1827c478bd9Sstevel@tonic-gate * defined in <iso/wchar_iso.h>, but inclusion of that header 1837c478bd9Sstevel@tonic-gate * will break ISO/IEC C namespace. 1847c478bd9Sstevel@tonic-gate */ 1857c478bd9Sstevel@tonic-gate #ifndef WCHAR_MAX 1867c478bd9Sstevel@tonic-gate #define WCHAR_MAX 2147483647 1877c478bd9Sstevel@tonic-gate #endif 1887c478bd9Sstevel@tonic-gate 1897c478bd9Sstevel@tonic-gate /* Maximum limit of wint_t */ 1907c478bd9Sstevel@tonic-gate #ifndef WINT_MAX 1917c478bd9Sstevel@tonic-gate #define WINT_MAX 2147483647 1927c478bd9Sstevel@tonic-gate #endif 1937c478bd9Sstevel@tonic-gate 1947c478bd9Sstevel@tonic-gate /* 1957c478bd9Sstevel@tonic-gate * It is probably a bug in the POSIX specification (IEEE-1003.1-1990) that 1967c478bd9Sstevel@tonic-gate * when including <limits.h> that the suffix _MAX is reserved but not the 1977c478bd9Sstevel@tonic-gate * suffix _MIN. However, until that issue is resolved.... 1987c478bd9Sstevel@tonic-gate */ 1997c478bd9Sstevel@tonic-gate #if defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX) || defined(_XPG6) 2007c478bd9Sstevel@tonic-gate 2017c478bd9Sstevel@tonic-gate #define INT8_MIN (-128) 2027c478bd9Sstevel@tonic-gate #define INT16_MIN (-32767-1) 2037c478bd9Sstevel@tonic-gate #define INT32_MIN (-2147483647-1) 2047c478bd9Sstevel@tonic-gate #if defined(_LP64) 2057c478bd9Sstevel@tonic-gate #define INT64_MIN (-9223372036854775807L-1) 2067c478bd9Sstevel@tonic-gate #elif defined(_LONGLONG_TYPE) 2077c478bd9Sstevel@tonic-gate #define INT64_MIN (-9223372036854775807LL-1) 2087c478bd9Sstevel@tonic-gate #endif 2097c478bd9Sstevel@tonic-gate 2107c478bd9Sstevel@tonic-gate #ifdef INT64_MIN 2117c478bd9Sstevel@tonic-gate #define INTMAX_MIN INT64_MIN 2127c478bd9Sstevel@tonic-gate #else 2137c478bd9Sstevel@tonic-gate #define INTMAX_MIN INT32_MIN 2147c478bd9Sstevel@tonic-gate #endif 2157c478bd9Sstevel@tonic-gate 2167c478bd9Sstevel@tonic-gate #define INT_LEAST8_MIN INT8_MIN 2177c478bd9Sstevel@tonic-gate #define INT_LEAST16_MIN INT16_MIN 2187c478bd9Sstevel@tonic-gate #define INT_LEAST32_MIN INT32_MIN 2197c478bd9Sstevel@tonic-gate #ifdef INT64_MIN 2207c478bd9Sstevel@tonic-gate #define INT_LEAST64_MIN INT64_MIN 2217c478bd9Sstevel@tonic-gate #endif 2227c478bd9Sstevel@tonic-gate 2237c478bd9Sstevel@tonic-gate #define INT_FAST8_MIN INT8_MIN 2247c478bd9Sstevel@tonic-gate #define INT_FAST16_MIN INT16_MIN 2257c478bd9Sstevel@tonic-gate #define INT_FAST32_MIN INT32_MIN 2267c478bd9Sstevel@tonic-gate #ifdef INT64_MIN 2277c478bd9Sstevel@tonic-gate #define INT_FAST64_MIN INT64_MIN 2287c478bd9Sstevel@tonic-gate #endif 2297c478bd9Sstevel@tonic-gate 2307c478bd9Sstevel@tonic-gate /* Minimum value of a pointer-holding signed integer type */ 2317c478bd9Sstevel@tonic-gate #if defined(_LP64) || defined(_I32LPx) 2327c478bd9Sstevel@tonic-gate #define INTPTR_MIN INT64_MIN 2337c478bd9Sstevel@tonic-gate #else 2347c478bd9Sstevel@tonic-gate #define INTPTR_MIN INT32_MIN 2357c478bd9Sstevel@tonic-gate #endif 2367c478bd9Sstevel@tonic-gate 2377c478bd9Sstevel@tonic-gate /* Minimum limits of ptrdiff_t defined in <sys/types.h> */ 2387c478bd9Sstevel@tonic-gate #if defined(_LP64) || defined(_I32LPx) 2397c478bd9Sstevel@tonic-gate #define PTRDIFF_MIN (-9223372036854775807L-1L) 2407c478bd9Sstevel@tonic-gate #else 2417c478bd9Sstevel@tonic-gate #define PTRDIFF_MIN (-2147483647-1) 2427c478bd9Sstevel@tonic-gate #endif 2437c478bd9Sstevel@tonic-gate 2447c478bd9Sstevel@tonic-gate /* Minimum limit of sig_atomic_t defined in <sys/types.h> */ 2457c478bd9Sstevel@tonic-gate #ifndef SIG_ATOMIC_MIN 2467c478bd9Sstevel@tonic-gate #define SIG_ATOMIC_MIN (-2147483647-1) 2477c478bd9Sstevel@tonic-gate #endif 2487c478bd9Sstevel@tonic-gate 2497c478bd9Sstevel@tonic-gate /* 2507c478bd9Sstevel@tonic-gate * Minimum limit of wchar_t. The WCHAR_* macros are also 2517c478bd9Sstevel@tonic-gate * defined in <iso/wchar_iso.h>, but inclusion of that header 2527c478bd9Sstevel@tonic-gate * will break ISO/IEC C namespace. 2537c478bd9Sstevel@tonic-gate */ 2547c478bd9Sstevel@tonic-gate #ifndef WCHAR_MIN 2557c478bd9Sstevel@tonic-gate #define WCHAR_MIN (-2147483647-1) 2567c478bd9Sstevel@tonic-gate #endif 2577c478bd9Sstevel@tonic-gate 2587c478bd9Sstevel@tonic-gate /* Minimum limit of wint_t */ 2597c478bd9Sstevel@tonic-gate #ifndef WINT_MIN 2607c478bd9Sstevel@tonic-gate #define WINT_MIN (-2147483647-1) 2617c478bd9Sstevel@tonic-gate #endif 2627c478bd9Sstevel@tonic-gate 2637c478bd9Sstevel@tonic-gate #endif /* defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX) ... */ 2647c478bd9Sstevel@tonic-gate 2657c478bd9Sstevel@tonic-gate #ifdef __cplusplus 2667c478bd9Sstevel@tonic-gate } 2677c478bd9Sstevel@tonic-gate #endif 2687c478bd9Sstevel@tonic-gate 2697c478bd9Sstevel@tonic-gate #endif /* _SYS_INT_LIMITS_H */ 270