williamr@2: /*- williamr@4: * williamr@2: * Copyright (c) 1991, 1993 williamr@2: * The Regents of the University of California. All rights reserved. williamr@2: * williamr@2: * This code is derived from software contributed to Berkeley by williamr@2: * Berkeley Software Design, Inc. williamr@2: * williamr@2: * Redistribution and use in source and binary forms, with or without williamr@2: * modification, are permitted provided that the following conditions williamr@2: * are met: williamr@2: * 1. Redistributions of source code must retain the above copyright williamr@2: * notice, this list of conditions and the following disclaimer. williamr@2: * 2. Redistributions in binary form must reproduce the above copyright williamr@2: * notice, this list of conditions and the following disclaimer in the williamr@2: * documentation and/or other materials provided with the distribution. williamr@2: * 4. Neither the name of the University nor the names of its contributors williamr@2: * may be used to endorse or promote products derived from this software williamr@2: * without specific prior written permission. williamr@2: * williamr@2: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND williamr@2: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE williamr@2: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE williamr@2: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE williamr@2: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL williamr@2: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS williamr@2: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) williamr@2: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT williamr@2: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY williamr@2: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF williamr@2: * SUCH DAMAGE. williamr@4: * © Portions Copyright (c) 2005-2010 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. williamr@2: * @(#)cdefs.h 8.8 (Berkeley) 1/9/95 williamr@2: * $FreeBSD: src/sys/sys/cdefs.h,v 1.88.2.1 2005/10/09 07:48:48 netchild Exp $ williamr@2: */ williamr@2: williamr@2: #ifndef _SYS_CDEFS_H_ williamr@2: #define _SYS_CDEFS_H_ williamr@2: williamr@2: #ifdef __SYMBIAN32__ williamr@2: #include <_ansi.h> williamr@2: #endif williamr@2: williamr@2: #if defined(__cplusplus) williamr@2: #define __BEGIN_DECLS extern "C" { williamr@2: #define __END_DECLS } williamr@2: #else williamr@2: #define __BEGIN_DECLS williamr@2: #define __END_DECLS williamr@2: #endif williamr@2: williamr@2: /* williamr@2: * This code has been put in place to help reduce the addition of williamr@2: * compiler specific defines in FreeBSD code. It helps to aid in williamr@2: * having a compiler-agnostic source tree. williamr@2: */ williamr@2: williamr@2: #if defined(__GNUC__) || defined(__INTEL_COMPILER) williamr@2: williamr@2: #if __GNUC__ >= 3 || defined(__INTEL_COMPILER) williamr@2: #define __GNUCLIKE_ASM 3 williamr@2: #define __GNUCLIKE_MATH_BUILTIN_CONSTANTS williamr@2: #else williamr@2: #define __GNUCLIKE_ASM 2 williamr@2: #endif williamr@2: #define __GNUCLIKE___TYPEOF 1 williamr@2: #define __GNUCLIKE___OFFSETOF 1 williamr@2: #define __GNUCLIKE___SECTION 1 williamr@2: williamr@2: #define __GNUCLIKE_ATTRIBUTE_MODE_DI 1 williamr@2: williamr@2: #ifndef __INTEL_COMPILER williamr@2: # define __GNUCLIKE_CTOR_SECTION_HANDLING 1 williamr@2: #endif williamr@2: williamr@2: #define __GNUCLIKE_BUILTIN_CONSTANT_P 1 williamr@2: # if defined(__INTEL_COMPILER) && defined(__cplusplus) \ williamr@2: && __INTEL_COMPILER < 800 williamr@2: # undef __GNUCLIKE_BUILTIN_CONSTANT_P williamr@2: # endif williamr@2: williamr@2: #if (__GNUC_MINOR__ > 95 || __GNUC__ >= 3) && !defined(__INTEL_COMPILER) williamr@2: # define __GNUCLIKE_BUILTIN_VARARGS 1 williamr@2: # define __GNUCLIKE_BUILTIN_STDARG 1 williamr@2: # define __GNUCLIKE_BUILTIN_VAALIST 1 williamr@2: #endif williamr@2: williamr@2: #if defined(__GNUC__) williamr@2: # define __GNUC_VA_LIST_COMPATIBILITY 1 williamr@2: #endif williamr@2: williamr@2: #ifndef __INTEL_COMPILER williamr@2: # define __GNUCLIKE_BUILTIN_NEXT_ARG 1 williamr@2: # define __GNUCLIKE_MATH_BUILTIN_RELOPS williamr@2: #endif williamr@2: williamr@2: #define __GNUCLIKE_BUILTIN_MEMCPY 1 williamr@2: williamr@2: /* XXX: if __GNUC__ >= 2: not tested everywhere originally, where replaced */ williamr@2: #define __CC_SUPPORTS_INLINE 1 williamr@2: #define __CC_SUPPORTS___INLINE 1 williamr@2: #define __CC_SUPPORTS___INLINE__ 1 williamr@2: williamr@2: #define __CC_SUPPORTS___FUNC__ 1 williamr@2: #define __CC_SUPPORTS_WARNING 1 williamr@2: williamr@2: #define __CC_SUPPORTS_VARADIC_XXX 1 /* see varargs.h */ williamr@2: williamr@2: #define __CC_SUPPORTS_DYNAMIC_ARRAY_INIT 1 williamr@2: williamr@2: /* XXX: sys/dev/mpt/mpilib/mpi_type.h uses it, someone should review it */ williamr@2: #define __CC_INT_IS_32BIT 1 williamr@2: williamr@2: #endif /* __GNUC__ || __INTEL_COMPILER */ williamr@2: williamr@2: /* williamr@2: * Macro to test if we're using a specific version of gcc or later. williamr@2: */ williamr@2: #if defined(__GNUC__) && !defined(__INTEL_COMPILER) williamr@2: #define __GNUC_PREREQ__(ma, mi) \ williamr@2: (__GNUC__ > (ma) || __GNUC__ == (ma) && __GNUC_MINOR__ >= (mi)) williamr@2: #else williamr@2: #define __GNUC_PREREQ__(ma, mi) 0 williamr@2: #endif williamr@2: williamr@2: /* williamr@2: * The __CONCAT macro is used to concatenate parts of symbol names, e.g. williamr@2: * with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo. williamr@2: * The __CONCAT macro is a bit tricky to use if it must work in non-ANSI williamr@2: * mode -- there must be no spaces between its arguments, and for nested williamr@2: * __CONCAT's, all the __CONCAT's must be at the left. __CONCAT can also williamr@2: * concatenate double-quoted strings produced by the __STRING macro, but williamr@2: * this only works with ANSI C. williamr@2: * williamr@2: * __XSTRING is like __STRING, but it expands any macros in its argument williamr@2: * first. It is only available with ANSI C. williamr@2: */ williamr@2: #if defined(__STDC__) || defined(__cplusplus) williamr@2: #define __P(protos) protos /* full-blown ANSI C */ williamr@2: #define __CONCAT1(x,y) x ## y williamr@2: #define __CONCAT(x,y) __CONCAT1(x,y) williamr@2: #define __STRING(x) #x /* stringify without expanding x */ williamr@2: #define __XSTRING(x) __STRING(x) /* expand x, then stringify */ williamr@2: williamr@2: #define __const const /* define reserved names to standard */ williamr@2: #define __signed signed williamr@2: #define __volatile volatile williamr@2: #if defined(__cplusplus) williamr@2: #define __inline inline /* convert to C++ keyword */ williamr@2: #else williamr@2: #if !(defined(__CC_SUPPORTS___INLINE)) williamr@2: #define __inline /* delete GCC keyword */ williamr@2: #endif /* ! __CC_SUPPORTS___INLINE */ williamr@2: #endif /* !__cplusplus */ williamr@2: williamr@2: #else /* !(__STDC__ || __cplusplus) */ williamr@2: #define __P(protos) () /* traditional C preprocessor */ williamr@2: #define __CONCAT(x,y) x/**/y williamr@2: #define __STRING(x) "x" williamr@2: williamr@2: #if !defined(__CC_SUPPORTS___INLINE) williamr@2: #define __const /* delete pseudo-ANSI C keywords */ williamr@2: #define __inline williamr@2: #define __signed williamr@2: #define __volatile williamr@2: /* williamr@2: * In non-ANSI C environments, new programs will want ANSI-only C keywords williamr@2: * deleted from the program and old programs will want them left alone. williamr@2: * When using a compiler other than gcc, programs using the ANSI C keywords williamr@2: * const, inline etc. as normal identifiers should define -DNO_ANSI_KEYWORDS. williamr@2: * When using "gcc -traditional", we assume that this is the intent; if williamr@2: * __GNUC__ is defined but __STDC__ is not, we leave the new keywords alone. williamr@2: */ williamr@2: #ifndef NO_ANSI_KEYWORDS williamr@2: #define const /* delete ANSI C keywords */ williamr@2: #define inline williamr@2: #define signed williamr@2: #define volatile williamr@2: #endif /* !NO_ANSI_KEYWORDS */ williamr@2: #endif /* !__CC_SUPPORTS___INLINE */ williamr@2: #endif /* !(__STDC__ || __cplusplus) */ williamr@2: williamr@2: /* williamr@2: * Compiler-dependent macros to help declare dead (non-returning) and williamr@2: * pure (no side effects) functions, and unused variables. They are williamr@2: * null except for versions of gcc that are known to support the features williamr@2: * properly (old versions of gcc-2 supported the dead and pure features williamr@2: * in a different (wrong) way). If we do not provide an implementation williamr@2: * for a given compiler, let the compile fail if it is told to use williamr@2: * a feature that we cannot live without. williamr@2: */ williamr@2: #ifdef lint williamr@2: #define __dead2 williamr@2: #define __pure2 williamr@2: #define __unused williamr@2: #define __packed williamr@2: #define __aligned(x) williamr@2: #define __section(x) williamr@2: #else williamr@2: #if !__GNUC_PREREQ__(2, 5) && !defined(__INTEL_COMPILER) williamr@2: #define __dead2 williamr@2: #define __pure2 williamr@2: #define __unused williamr@2: #endif williamr@2: #if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 && __GNUC_MINOR__ < 7 && !defined(__INTEL_COMPILER) williamr@2: #define __dead2 __attribute__((__noreturn__)) williamr@2: #define __pure2 __attribute__((__const__)) williamr@2: #define __unused williamr@2: /* XXX Find out what to do for __packed, __aligned and __section */ williamr@2: #endif williamr@2: #if __GNUC_PREREQ__(2, 7) williamr@2: #define __dead2 __attribute__((__noreturn__)) williamr@2: #define __pure2 __attribute__((__const__)) williamr@2: #define __unused __attribute__((__unused__)) williamr@2: #define __used __attribute__((__used__)) williamr@2: #define __packed __attribute__((__packed__)) williamr@2: #define __aligned(x) __attribute__((__aligned__(x))) williamr@2: #define __section(x) __attribute__((__section__(x))) williamr@2: #endif williamr@2: #if defined(__INTEL_COMPILER) williamr@2: #define __dead2 __attribute__((__noreturn__)) williamr@2: #define __pure2 __attribute__((__const__)) williamr@2: #define __unused __attribute__((__unused__)) williamr@2: #define __used __attribute__((__used__)) williamr@2: #define __packed __attribute__((__packed__)) williamr@2: #define __aligned(x) __attribute__((__aligned__(x))) williamr@2: #define __section(x) __attribute__((__section__(x))) williamr@2: #endif williamr@2: #endif williamr@2: williamr@2: #if __GNUC_PREREQ__(2, 96) williamr@2: #define __pure __attribute__((__pure__)) williamr@2: #else williamr@2: #define __pure williamr@2: #endif williamr@2: williamr@2: #if __GNUC_PREREQ__(3, 1) || (defined(__INTEL_COMPILER) && __INTEL_COMPILER >= 800) williamr@2: #define __always_inline __attribute__((__always_inline__)) williamr@2: #else williamr@2: #define __always_inline williamr@2: #endif williamr@2: williamr@2: #if __GNUC_PREREQ__(3, 3) williamr@2: #define __nonnull(x) __attribute__((__nonnull__(x))) williamr@2: #else williamr@2: #define __nonnull(x) williamr@2: #endif williamr@2: williamr@2: /* XXX: should use `#if __STDC_VERSION__ < 199901'. */ williamr@4: #if __STDC_VERSION__ < 199901 williamr@2: #if !__GNUC_PREREQ__(2, 7) && !defined(__INTEL_COMPILER) williamr@4: #define __func__ "" williamr@4: #endif williamr@2: #endif williamr@2: williamr@2: #if (defined(__INTEL_COMPILER) || (defined(__GNUC__) && __GNUC__ >= 2)) && !defined(__STRICT_ANSI__) || __STDC_VERSION__ >= 199901 williamr@2: #ifdef __SYMBIAN32__ williamr@2: #ifndef __LONG_LONG_SUPPORTED williamr@2: #define __LONG_LONG_SUPPORTED williamr@2: #endif /* __LONG_LONG_SUPPORTED */ williamr@2: #else williamr@2: #define __LONG_LONG_SUPPORTED williamr@2: #endif /* __SYMBIAN32__ */ williamr@2: #endif williamr@2: williamr@2: #ifdef __SYMBIAN32__ williamr@2: #if ((defined(__ARMCC__) && (__ARMCC_VERSION > 220000) ) || (defined(__WINSCW__))) williamr@2: #ifndef __LONG_LONG_SUPPORTED williamr@2: #define __LONG_LONG_SUPPORTED williamr@2: #endif /* __LONG_LONG_SUPPORTED */ williamr@2: #endif williamr@2: #endif /*__SYMBIAN32__*/ williamr@2: williamr@2: williamr@2: /* williamr@2: * GCC 2.95 provides `__restrict' as an extension to C90 to support the williamr@2: * C99-specific `restrict' type qualifier. We happen to use `__restrict' as williamr@2: * a way to define the `restrict' type qualifier without disturbing older williamr@2: * software that is unaware of C99 keywords. williamr@2: */ williamr@2: #if !(__GNUC__ == 2 && __GNUC_MINOR__ == 95) williamr@2: #if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 199901 williamr@2: #define __restrict williamr@2: #else williamr@2: #define __restrict restrict williamr@2: #endif williamr@2: #endif williamr@2: williamr@2: /* williamr@2: * GNU C version 2.96 adds explicit branch prediction so that williamr@2: * the CPU back-end can hint the processor and also so that williamr@2: * code blocks can be reordered such that the predicted path williamr@2: * sees a more linear flow, thus improving cache behavior, etc. williamr@2: * williamr@2: * The following two macros provide us with a way to utilize this williamr@2: * compiler feature. Use __predict_true() if you expect the expression williamr@2: * to evaluate to true, and __predict_false() if you expect the williamr@2: * expression to evaluate to false. williamr@2: * williamr@2: * A few notes about usage: williamr@2: * williamr@2: * * Generally, __predict_false() error condition checks (unless williamr@2: * you have some _strong_ reason to do otherwise, in which case williamr@2: * document it), and/or __predict_true() `no-error' condition williamr@2: * checks, assuming you want to optimize for the no-error case. williamr@2: * williamr@2: * * Other than that, if you don't know the likelihood of a test williamr@2: * succeeding from empirical or other `hard' evidence, don't williamr@2: * make predictions. williamr@2: * williamr@2: * * These are meant to be used in places that are run `a lot'. williamr@2: * It is wasteful to make predictions in code that is run williamr@2: * seldomly (e.g. at subsystem initialization time) as the williamr@2: * basic block reordering that this affects can often generate williamr@2: * larger code. williamr@2: */ williamr@2: #if __GNUC_PREREQ__(2, 96) williamr@2: #define __predict_true(exp) __builtin_expect((exp), 1) williamr@2: #define __predict_false(exp) __builtin_expect((exp), 0) williamr@2: #else williamr@2: #define __predict_true(exp) (exp) williamr@2: #define __predict_false(exp) (exp) williamr@2: #endif williamr@2: williamr@2: /* williamr@2: * We define this here since , , and williamr@2: * require it. williamr@2: */ williamr@4: #if !defined(__cplusplus) williamr@2: #define __offsetof(type, field) ((size_t)(&((type *)0)->field)) williamr@2: #else williamr@4: #if defined(__GNUC__) williamr@4: #if(__GNUC__ > 3) williamr@2: #define __offsetof(type, field) \ williamr@4: (__builtin_offsetof (type,field)) williamr@4: #else williamr@4: #define __offsetof(type, field) \ williamr@4: (__offsetof__ (type,field)) williamr@2: #endif williamr@4: #else williamr@4: #define __offsetof(type, field) (reinterpret_cast \ williamr@4: (&reinterpret_cast \ williamr@4: (static_cast (0)->field))) williamr@4: #endif williamr@4: #endif williamr@4: williamr@2: #define __rangeof(type, start, end) \ williamr@2: (__offsetof(type, end) - __offsetof(type, start)) williamr@2: williamr@2: /* williamr@2: * Compiler-dependent macros to declare that functions take printf-like williamr@2: * or scanf-like arguments. They are null except for versions of gcc williamr@2: * that are known to support the features properly (old versions of gcc-2 williamr@2: * didn't permit keeping the keywords out of the application namespace). williamr@2: */ williamr@2: #if !__GNUC_PREREQ__(2, 7) && !defined(__INTEL_COMPILER) williamr@2: #define __printflike(fmtarg, firstvararg) williamr@2: #define __scanflike(fmtarg, firstvararg) williamr@2: #else williamr@2: #define __printflike(fmtarg, firstvararg) \ williamr@2: __attribute__((__format__ (__printf__, fmtarg, firstvararg))) williamr@2: #define __scanflike(fmtarg, firstvararg) \ williamr@2: __attribute__((__format__ (__scanf__, fmtarg, firstvararg))) williamr@2: #endif williamr@2: williamr@2: /* Compiler-dependent macros that rely on FreeBSD-specific extensions. */ williamr@2: #if __FreeBSD_cc_version >= 300001 && defined(__GNUC__) && !defined(__INTEL_COMPILER) williamr@2: #define __printf0like(fmtarg, firstvararg) \ williamr@2: __attribute__((__format__ (__printf0__, fmtarg, firstvararg))) williamr@2: #else williamr@2: #define __printf0like(fmtarg, firstvararg) williamr@2: #endif williamr@2: williamr@2: #if defined(__GNUC__) || defined(__INTEL_COMPILER) williamr@2: #ifndef __INTEL_COMPILER williamr@2: #define __strong_reference(sym,aliassym) \ williamr@2: extern __typeof (sym) aliassym __attribute__ ((__alias__ (#sym))); williamr@2: #endif williamr@2: #ifdef __STDC__ williamr@2: #define __weak_reference(sym,alias) \ williamr@2: __asm__(".weak " #alias); \ williamr@2: __asm__(".equ " #alias ", " #sym) williamr@2: #define __warn_references(sym,msg) \ williamr@2: __asm__(".section .gnu.warning." #sym); \ williamr@2: __asm__(".asciz \"" msg "\""); \ williamr@2: __asm__(".previous") williamr@2: #else williamr@2: #define __weak_reference(sym,alias) \ williamr@2: __asm__(".weak alias"); \ williamr@2: __asm__(".equ alias, sym") williamr@2: #define __warn_references(sym,msg) \ williamr@2: __asm__(".section .gnu.warning.sym"); \ williamr@2: __asm__(".asciz \"msg\""); \ williamr@2: __asm__(".previous") williamr@2: #endif /* __STDC__ */ williamr@2: #endif /* __GNUC__ || __INTEL_COMPILER */ williamr@2: williamr@2: #if defined(__GNUC__) || defined(__INTEL_COMPILER) williamr@2: #define __IDSTRING(name,string) __asm__(".ident\t\"" string "\"") williamr@2: #else williamr@2: /* williamr@2: * The following definition might not work well if used in header files, williamr@2: * but it should be better than nothing. If you want a "do nothing" williamr@2: * version, then it should generate some harmless declaration, such as: williamr@2: * #define __IDSTRING(name,string) struct __hack williamr@2: */ williamr@2: #define __IDSTRING(name,string) static const char name[] __unused = string williamr@2: #endif williamr@2: williamr@2: /* williamr@2: * Embed the rcs id of a source file in the resulting library. Note that in williamr@2: * more recent ELF binutils, we use .ident allowing the ID to be stripped. williamr@2: * Usage: williamr@2: * __FBSDID("$FreeBSD: src/sys/sys/cdefs.h,v 1.88.2.1 2005/10/09 07:48:48 netchild Exp $"); williamr@2: */ williamr@2: #ifndef __FBSDID williamr@2: #if !defined(lint) && !defined(STRIP_FBSDID) williamr@2: #define __FBSDID(s) __IDSTRING(__CONCAT(__rcsid_,__LINE__),s) williamr@2: #else williamr@2: #define __FBSDID(s) struct __hack williamr@2: #endif williamr@2: #endif williamr@2: williamr@2: #ifndef __RCSID williamr@2: #ifndef NO__RCSID williamr@2: #define __RCSID(s) __IDSTRING(__CONCAT(__rcsid_,__LINE__),s) williamr@2: #else williamr@2: #define __RCSID(s) struct __hack williamr@2: #endif williamr@2: #endif williamr@2: williamr@2: #ifndef __RCSID_SOURCE williamr@2: #ifndef NO__RCSID_SOURCE williamr@2: #define __RCSID_SOURCE(s) __IDSTRING(__CONCAT(__rcsid_source_,__LINE__),s) williamr@2: #else williamr@2: #define __RCSID_SOURCE(s) struct __hack williamr@2: #endif williamr@2: #endif williamr@2: williamr@2: #ifndef __SCCSID williamr@2: #ifndef NO__SCCSID williamr@2: #define __SCCSID(s) __IDSTRING(__CONCAT(__sccsid_,__LINE__),s) williamr@2: #else williamr@2: #define __SCCSID(s) struct __hack williamr@2: #endif williamr@2: #endif williamr@2: williamr@2: #ifndef __COPYRIGHT williamr@2: #ifndef NO__COPYRIGHT williamr@2: #define __COPYRIGHT(s) __IDSTRING(__CONCAT(__copyright_,__LINE__),s) williamr@2: #else williamr@2: #define __COPYRIGHT(s) struct __hack williamr@2: #endif williamr@2: #endif williamr@2: williamr@2: #ifndef __DECONST williamr@2: #define __DECONST(type, var) ((type)(uintptr_t)(const void *)(var)) williamr@2: #endif williamr@2: williamr@2: #ifndef __DEVOLATILE williamr@2: #define __DEVOLATILE(type, var) ((type)(uintptr_t)(volatile void *)(var)) williamr@2: #endif williamr@2: williamr@2: #ifndef __DEQUALIFY williamr@2: #define __DEQUALIFY(type, var) ((type)(uintptr_t)(const volatile void *)(var)) williamr@2: #endif williamr@2: williamr@2: /*- williamr@2: * The following definitions are an extension of the behavior originally williamr@2: * implemented in , but with a different level of granularity. williamr@2: * POSIX.1 requires that the macros we test be defined before any standard williamr@2: * header file is included. williamr@2: * williamr@2: * Here's a quick run-down of the versions: williamr@2: * defined(_POSIX_SOURCE) 1003.1-1988 williamr@2: * _POSIX_C_SOURCE == 1 1003.1-1990 williamr@2: * _POSIX_C_SOURCE == 2 1003.2-1992 C Language Binding Option williamr@2: * _POSIX_C_SOURCE == 199309 1003.1b-1993 williamr@2: * _POSIX_C_SOURCE == 199506 1003.1c-1995, 1003.1i-1995, williamr@2: * and the omnibus ISO/IEC 9945-1: 1996 williamr@2: * _POSIX_C_SOURCE == 200112 1003.1-2001 williamr@2: * williamr@2: * In addition, the X/Open Portability Guide, which is now the Single UNIX williamr@2: * Specification, defines a feature-test macro which indicates the version of williamr@2: * that specification, and which subsumes _POSIX_C_SOURCE. williamr@2: * williamr@2: * Our macros begin with two underscores to avoid namespace screwage. williamr@2: */ williamr@2: williamr@2: /* Deal with IEEE Std. 1003.1-1990, in which _POSIX_C_SOURCE == 1. */ williamr@2: #if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 1 williamr@2: #undef _POSIX_C_SOURCE /* Probably illegal, but beyond caring now. */ williamr@2: #define _POSIX_C_SOURCE 199009 williamr@2: #endif williamr@2: williamr@2: /* Deal with IEEE Std. 1003.2-1992, in which _POSIX_C_SOURCE == 2. */ williamr@2: #if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 2 williamr@2: #undef _POSIX_C_SOURCE williamr@2: #define _POSIX_C_SOURCE 199209 williamr@2: #endif williamr@2: williamr@2: /* Deal with various X/Open Portability Guides and Single UNIX Spec. */ williamr@2: #ifdef _XOPEN_SOURCE williamr@2: #if _XOPEN_SOURCE - 0 >= 600 williamr@2: #define __XSI_VISIBLE 600 williamr@2: #undef _POSIX_C_SOURCE williamr@2: #define _POSIX_C_SOURCE 200112 williamr@2: #elif _XOPEN_SOURCE - 0 >= 500 williamr@2: #define __XSI_VISIBLE 500 williamr@2: #undef _POSIX_C_SOURCE williamr@2: #define _POSIX_C_SOURCE 199506 williamr@2: #endif williamr@2: #endif williamr@2: williamr@2: /* williamr@2: * Deal with all versions of POSIX. The ordering relative to the tests above is williamr@2: * important. williamr@2: */ williamr@2: #if defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE) williamr@2: #define _POSIX_C_SOURCE 198808 williamr@2: #endif williamr@2: #ifdef _POSIX_C_SOURCE williamr@2: #if _POSIX_C_SOURCE >= 200112 williamr@2: #ifdef __SYMBIAN32__ williamr@2: #define __XSI_VISIBLE 600 williamr@2: #define __BSD_VISIBLE 1 williamr@2: #endif //__SYMBIAN32__ williamr@2: #define __POSIX_VISIBLE 200112 williamr@2: #define __ISO_C_VISIBLE 1999 williamr@2: #elif _POSIX_C_SOURCE >= 199506 williamr@2: #define __POSIX_VISIBLE 199506 williamr@2: #define __ISO_C_VISIBLE 1990 williamr@2: #elif _POSIX_C_SOURCE >= 199309 williamr@2: #define __POSIX_VISIBLE 199309 williamr@2: #define __ISO_C_VISIBLE 1990 williamr@2: #elif _POSIX_C_SOURCE >= 199209 williamr@2: #define __POSIX_VISIBLE 199209 williamr@2: #define __ISO_C_VISIBLE 1990 williamr@2: #elif _POSIX_C_SOURCE >= 199009 williamr@2: #define __POSIX_VISIBLE 199009 williamr@2: #define __ISO_C_VISIBLE 1990 williamr@2: #else williamr@2: #define __POSIX_VISIBLE 198808 williamr@2: #define __ISO_C_VISIBLE 0 williamr@2: #endif /* _POSIX_C_SOURCE */ williamr@2: #else williamr@2: /*- williamr@2: * Deal with _ANSI_SOURCE: williamr@2: * If it is defined, and no other compilation environment is explicitly williamr@2: * requested, then define our internal feature-test macros to zero. This williamr@2: * makes no difference to the preprocessor (undefined symbols in preprocessing williamr@2: * expressions are defined to have value zero), but makes it more convenient for williamr@2: * a test program to print out the values. williamr@2: * williamr@2: * If a program mistakenly defines _ANSI_SOURCE and some other macro such as williamr@2: * _POSIX_C_SOURCE, we will assume that it wants the broader compilation williamr@2: * environment (and in fact we will never get here). williamr@2: */ williamr@2: #if defined(_ANSI_SOURCE) /* Hide almost everything. */ williamr@2: #define __POSIX_VISIBLE 0 williamr@2: #define __XSI_VISIBLE 0 williamr@2: #define __BSD_VISIBLE 0 williamr@2: #define __ISO_C_VISIBLE 1990 williamr@2: #elif defined(_C99_SOURCE) /* Localism to specify strict C99 env. */ williamr@2: #define __POSIX_VISIBLE 0 williamr@2: #define __XSI_VISIBLE 0 williamr@2: #define __BSD_VISIBLE 0 williamr@2: #define __ISO_C_VISIBLE 1999 williamr@2: #else /* Default environment: show everything. */ williamr@2: #define __POSIX_VISIBLE 200112 williamr@2: #define __XSI_VISIBLE 600 williamr@2: #define __BSD_VISIBLE 1 williamr@2: #define __ISO_C_VISIBLE 1999 williamr@2: #endif williamr@2: #endif williamr@2: williamr@2: #endif /* !_SYS_CDEFS_H_ */