1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/ossrv/genericopenlibs/openenvcore/include/sys/cdefs.h Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,575 @@
1.4 +/*-
1.5 + *
1.6 + * Copyright (c) 1991, 1993
1.7 + * The Regents of the University of California. All rights reserved.
1.8 + *
1.9 + * This code is derived from software contributed to Berkeley by
1.10 + * Berkeley Software Design, Inc.
1.11 + *
1.12 + * Redistribution and use in source and binary forms, with or without
1.13 + * modification, are permitted provided that the following conditions
1.14 + * are met:
1.15 + * 1. Redistributions of source code must retain the above copyright
1.16 + * notice, this list of conditions and the following disclaimer.
1.17 + * 2. Redistributions in binary form must reproduce the above copyright
1.18 + * notice, this list of conditions and the following disclaimer in the
1.19 + * documentation and/or other materials provided with the distribution.
1.20 + * 4. Neither the name of the University nor the names of its contributors
1.21 + * may be used to endorse or promote products derived from this software
1.22 + * without specific prior written permission.
1.23 + *
1.24 + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
1.25 + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.26 + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.27 + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
1.28 + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1.29 + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
1.30 + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1.31 + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
1.32 + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
1.33 + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
1.34 + * SUCH DAMAGE.
1.35 +* © Portions Copyright (c) 2005-2010 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
1.36 + * @(#)cdefs.h 8.8 (Berkeley) 1/9/95
1.37 + * $FreeBSD: src/sys/sys/cdefs.h,v 1.88.2.1 2005/10/09 07:48:48 netchild Exp $
1.38 + */
1.39 +
1.40 +#ifndef _SYS_CDEFS_H_
1.41 +#define _SYS_CDEFS_H_
1.42 +
1.43 +#ifdef __SYMBIAN32__
1.44 +#include <_ansi.h>
1.45 +#endif
1.46 +
1.47 +#if defined(__cplusplus)
1.48 +#define __BEGIN_DECLS extern "C" {
1.49 +#define __END_DECLS }
1.50 +#else
1.51 +#define __BEGIN_DECLS
1.52 +#define __END_DECLS
1.53 +#endif
1.54 +
1.55 +/*
1.56 + * This code has been put in place to help reduce the addition of
1.57 + * compiler specific defines in FreeBSD code. It helps to aid in
1.58 + * having a compiler-agnostic source tree.
1.59 + */
1.60 +
1.61 +#if defined(__GNUC__) || defined(__INTEL_COMPILER)
1.62 +
1.63 +#if __GNUC__ >= 3 || defined(__INTEL_COMPILER)
1.64 +#define __GNUCLIKE_ASM 3
1.65 +#define __GNUCLIKE_MATH_BUILTIN_CONSTANTS
1.66 +#else
1.67 +#define __GNUCLIKE_ASM 2
1.68 +#endif
1.69 +#define __GNUCLIKE___TYPEOF 1
1.70 +#define __GNUCLIKE___OFFSETOF 1
1.71 +#define __GNUCLIKE___SECTION 1
1.72 +
1.73 +#define __GNUCLIKE_ATTRIBUTE_MODE_DI 1
1.74 +
1.75 +#ifndef __INTEL_COMPILER
1.76 +# define __GNUCLIKE_CTOR_SECTION_HANDLING 1
1.77 +#endif
1.78 +
1.79 +#define __GNUCLIKE_BUILTIN_CONSTANT_P 1
1.80 +# if defined(__INTEL_COMPILER) && defined(__cplusplus) \
1.81 + && __INTEL_COMPILER < 800
1.82 +# undef __GNUCLIKE_BUILTIN_CONSTANT_P
1.83 +# endif
1.84 +
1.85 +#if (__GNUC_MINOR__ > 95 || __GNUC__ >= 3) && !defined(__INTEL_COMPILER)
1.86 +# define __GNUCLIKE_BUILTIN_VARARGS 1
1.87 +# define __GNUCLIKE_BUILTIN_STDARG 1
1.88 +# define __GNUCLIKE_BUILTIN_VAALIST 1
1.89 +#endif
1.90 +
1.91 +#if defined(__GNUC__)
1.92 +# define __GNUC_VA_LIST_COMPATIBILITY 1
1.93 +#endif
1.94 +
1.95 +#ifndef __INTEL_COMPILER
1.96 +# define __GNUCLIKE_BUILTIN_NEXT_ARG 1
1.97 +# define __GNUCLIKE_MATH_BUILTIN_RELOPS
1.98 +#endif
1.99 +
1.100 +#define __GNUCLIKE_BUILTIN_MEMCPY 1
1.101 +
1.102 +/* XXX: if __GNUC__ >= 2: not tested everywhere originally, where replaced */
1.103 +#define __CC_SUPPORTS_INLINE 1
1.104 +#define __CC_SUPPORTS___INLINE 1
1.105 +#define __CC_SUPPORTS___INLINE__ 1
1.106 +
1.107 +#define __CC_SUPPORTS___FUNC__ 1
1.108 +#define __CC_SUPPORTS_WARNING 1
1.109 +
1.110 +#define __CC_SUPPORTS_VARADIC_XXX 1 /* see varargs.h */
1.111 +
1.112 +#define __CC_SUPPORTS_DYNAMIC_ARRAY_INIT 1
1.113 +
1.114 +/* XXX: sys/dev/mpt/mpilib/mpi_type.h uses it, someone should review it */
1.115 +#define __CC_INT_IS_32BIT 1
1.116 +
1.117 +#endif /* __GNUC__ || __INTEL_COMPILER */
1.118 +
1.119 +/*
1.120 + * Macro to test if we're using a specific version of gcc or later.
1.121 + */
1.122 +#if defined(__GNUC__) && !defined(__INTEL_COMPILER)
1.123 +#define __GNUC_PREREQ__(ma, mi) \
1.124 + (__GNUC__ > (ma) || __GNUC__ == (ma) && __GNUC_MINOR__ >= (mi))
1.125 +#else
1.126 +#define __GNUC_PREREQ__(ma, mi) 0
1.127 +#endif
1.128 +
1.129 +/*
1.130 + * The __CONCAT macro is used to concatenate parts of symbol names, e.g.
1.131 + * with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo.
1.132 + * The __CONCAT macro is a bit tricky to use if it must work in non-ANSI
1.133 + * mode -- there must be no spaces between its arguments, and for nested
1.134 + * __CONCAT's, all the __CONCAT's must be at the left. __CONCAT can also
1.135 + * concatenate double-quoted strings produced by the __STRING macro, but
1.136 + * this only works with ANSI C.
1.137 + *
1.138 + * __XSTRING is like __STRING, but it expands any macros in its argument
1.139 + * first. It is only available with ANSI C.
1.140 + */
1.141 +#if defined(__STDC__) || defined(__cplusplus)
1.142 +#define __P(protos) protos /* full-blown ANSI C */
1.143 +#define __CONCAT1(x,y) x ## y
1.144 +#define __CONCAT(x,y) __CONCAT1(x,y)
1.145 +#define __STRING(x) #x /* stringify without expanding x */
1.146 +#define __XSTRING(x) __STRING(x) /* expand x, then stringify */
1.147 +
1.148 +#define __const const /* define reserved names to standard */
1.149 +#define __signed signed
1.150 +#define __volatile volatile
1.151 +#if defined(__cplusplus)
1.152 +#define __inline inline /* convert to C++ keyword */
1.153 +#else
1.154 +#if !(defined(__CC_SUPPORTS___INLINE))
1.155 +#define __inline /* delete GCC keyword */
1.156 +#endif /* ! __CC_SUPPORTS___INLINE */
1.157 +#endif /* !__cplusplus */
1.158 +
1.159 +#else /* !(__STDC__ || __cplusplus) */
1.160 +#define __P(protos) () /* traditional C preprocessor */
1.161 +#define __CONCAT(x,y) x/**/y
1.162 +#define __STRING(x) "x"
1.163 +
1.164 +#if !defined(__CC_SUPPORTS___INLINE)
1.165 +#define __const /* delete pseudo-ANSI C keywords */
1.166 +#define __inline
1.167 +#define __signed
1.168 +#define __volatile
1.169 +/*
1.170 + * In non-ANSI C environments, new programs will want ANSI-only C keywords
1.171 + * deleted from the program and old programs will want them left alone.
1.172 + * When using a compiler other than gcc, programs using the ANSI C keywords
1.173 + * const, inline etc. as normal identifiers should define -DNO_ANSI_KEYWORDS.
1.174 + * When using "gcc -traditional", we assume that this is the intent; if
1.175 + * __GNUC__ is defined but __STDC__ is not, we leave the new keywords alone.
1.176 + */
1.177 +#ifndef NO_ANSI_KEYWORDS
1.178 +#define const /* delete ANSI C keywords */
1.179 +#define inline
1.180 +#define signed
1.181 +#define volatile
1.182 +#endif /* !NO_ANSI_KEYWORDS */
1.183 +#endif /* !__CC_SUPPORTS___INLINE */
1.184 +#endif /* !(__STDC__ || __cplusplus) */
1.185 +
1.186 +/*
1.187 + * Compiler-dependent macros to help declare dead (non-returning) and
1.188 + * pure (no side effects) functions, and unused variables. They are
1.189 + * null except for versions of gcc that are known to support the features
1.190 + * properly (old versions of gcc-2 supported the dead and pure features
1.191 + * in a different (wrong) way). If we do not provide an implementation
1.192 + * for a given compiler, let the compile fail if it is told to use
1.193 + * a feature that we cannot live without.
1.194 + */
1.195 +#ifdef lint
1.196 +#define __dead2
1.197 +#define __pure2
1.198 +#define __unused
1.199 +#define __packed
1.200 +#define __aligned(x)
1.201 +#define __section(x)
1.202 +#else
1.203 +#if !__GNUC_PREREQ__(2, 5) && !defined(__INTEL_COMPILER)
1.204 +#define __dead2
1.205 +#define __pure2
1.206 +#define __unused
1.207 +#endif
1.208 +#if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 && __GNUC_MINOR__ < 7 && !defined(__INTEL_COMPILER)
1.209 +#define __dead2 __attribute__((__noreturn__))
1.210 +#define __pure2 __attribute__((__const__))
1.211 +#define __unused
1.212 +/* XXX Find out what to do for __packed, __aligned and __section */
1.213 +#endif
1.214 +#if __GNUC_PREREQ__(2, 7)
1.215 +#define __dead2 __attribute__((__noreturn__))
1.216 +#define __pure2 __attribute__((__const__))
1.217 +#define __unused __attribute__((__unused__))
1.218 +#define __used __attribute__((__used__))
1.219 +#define __packed __attribute__((__packed__))
1.220 +#define __aligned(x) __attribute__((__aligned__(x)))
1.221 +#define __section(x) __attribute__((__section__(x)))
1.222 +#endif
1.223 +#if defined(__INTEL_COMPILER)
1.224 +#define __dead2 __attribute__((__noreturn__))
1.225 +#define __pure2 __attribute__((__const__))
1.226 +#define __unused __attribute__((__unused__))
1.227 +#define __used __attribute__((__used__))
1.228 +#define __packed __attribute__((__packed__))
1.229 +#define __aligned(x) __attribute__((__aligned__(x)))
1.230 +#define __section(x) __attribute__((__section__(x)))
1.231 +#endif
1.232 +#endif
1.233 +
1.234 +#if __GNUC_PREREQ__(2, 96)
1.235 +#define __pure __attribute__((__pure__))
1.236 +#else
1.237 +#define __pure
1.238 +#endif
1.239 +
1.240 +#if __GNUC_PREREQ__(3, 1) || (defined(__INTEL_COMPILER) && __INTEL_COMPILER >= 800)
1.241 +#define __always_inline __attribute__((__always_inline__))
1.242 +#else
1.243 +#define __always_inline
1.244 +#endif
1.245 +
1.246 +#if __GNUC_PREREQ__(3, 3)
1.247 +#define __nonnull(x) __attribute__((__nonnull__(x)))
1.248 +#else
1.249 +#define __nonnull(x)
1.250 +#endif
1.251 +
1.252 +/* XXX: should use `#if __STDC_VERSION__ < 199901'. */
1.253 +#if __STDC_VERSION__ < 199901
1.254 +#if !__GNUC_PREREQ__(2, 7) && !defined(__INTEL_COMPILER)
1.255 +#define __func__ ""
1.256 +#endif
1.257 +#endif
1.258 +
1.259 +#if (defined(__INTEL_COMPILER) || (defined(__GNUC__) && __GNUC__ >= 2)) && !defined(__STRICT_ANSI__) || __STDC_VERSION__ >= 199901
1.260 +#ifdef __SYMBIAN32__
1.261 +#ifndef __LONG_LONG_SUPPORTED
1.262 +#define __LONG_LONG_SUPPORTED
1.263 +#endif /* __LONG_LONG_SUPPORTED */
1.264 +#else
1.265 +#define __LONG_LONG_SUPPORTED
1.266 +#endif /* __SYMBIAN32__ */
1.267 +#endif
1.268 +
1.269 +#ifdef __SYMBIAN32__
1.270 +#if ((defined(__ARMCC__) && (__ARMCC_VERSION > 220000) ) || (defined(__WINSCW__)))
1.271 +#ifndef __LONG_LONG_SUPPORTED
1.272 +#define __LONG_LONG_SUPPORTED
1.273 +#endif /* __LONG_LONG_SUPPORTED */
1.274 +#endif
1.275 +#endif /*__SYMBIAN32__*/
1.276 +
1.277 +
1.278 +/*
1.279 + * GCC 2.95 provides `__restrict' as an extension to C90 to support the
1.280 + * C99-specific `restrict' type qualifier. We happen to use `__restrict' as
1.281 + * a way to define the `restrict' type qualifier without disturbing older
1.282 + * software that is unaware of C99 keywords.
1.283 + */
1.284 +#if !(__GNUC__ == 2 && __GNUC_MINOR__ == 95)
1.285 +#if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 199901
1.286 +#define __restrict
1.287 +#else
1.288 +#define __restrict restrict
1.289 +#endif
1.290 +#endif
1.291 +
1.292 +/*
1.293 + * GNU C version 2.96 adds explicit branch prediction so that
1.294 + * the CPU back-end can hint the processor and also so that
1.295 + * code blocks can be reordered such that the predicted path
1.296 + * sees a more linear flow, thus improving cache behavior, etc.
1.297 + *
1.298 + * The following two macros provide us with a way to utilize this
1.299 + * compiler feature. Use __predict_true() if you expect the expression
1.300 + * to evaluate to true, and __predict_false() if you expect the
1.301 + * expression to evaluate to false.
1.302 + *
1.303 + * A few notes about usage:
1.304 + *
1.305 + * * Generally, __predict_false() error condition checks (unless
1.306 + * you have some _strong_ reason to do otherwise, in which case
1.307 + * document it), and/or __predict_true() `no-error' condition
1.308 + * checks, assuming you want to optimize for the no-error case.
1.309 + *
1.310 + * * Other than that, if you don't know the likelihood of a test
1.311 + * succeeding from empirical or other `hard' evidence, don't
1.312 + * make predictions.
1.313 + *
1.314 + * * These are meant to be used in places that are run `a lot'.
1.315 + * It is wasteful to make predictions in code that is run
1.316 + * seldomly (e.g. at subsystem initialization time) as the
1.317 + * basic block reordering that this affects can often generate
1.318 + * larger code.
1.319 + */
1.320 +#if __GNUC_PREREQ__(2, 96)
1.321 +#define __predict_true(exp) __builtin_expect((exp), 1)
1.322 +#define __predict_false(exp) __builtin_expect((exp), 0)
1.323 +#else
1.324 +#define __predict_true(exp) (exp)
1.325 +#define __predict_false(exp) (exp)
1.326 +#endif
1.327 +
1.328 +/*
1.329 + * We define this here since <stddef.h>, <sys/queue.h>, and <sys/types.h>
1.330 + * require it.
1.331 + */
1.332 +#if !defined(__cplusplus)
1.333 +#define __offsetof(type, field) ((size_t)(&((type *)0)->field))
1.334 +#else
1.335 +#if defined(__GNUC__)
1.336 +#if(__GNUC__ > 3)
1.337 +#define __offsetof(type, field) \
1.338 + (__builtin_offsetof (type,field))
1.339 +#else
1.340 +#define __offsetof(type, field) \
1.341 + (__offsetof__ (type,field))
1.342 +#endif
1.343 +#else
1.344 +#define __offsetof(type, field) ((size_t)(&((type *)0)->field))
1.345 +#endif
1.346 +#endif
1.347 +
1.348 +#define __rangeof(type, start, end) \
1.349 + (__offsetof(type, end) - __offsetof(type, start))
1.350 +
1.351 +/*
1.352 + * Compiler-dependent macros to declare that functions take printf-like
1.353 + * or scanf-like arguments. They are null except for versions of gcc
1.354 + * that are known to support the features properly (old versions of gcc-2
1.355 + * didn't permit keeping the keywords out of the application namespace).
1.356 + */
1.357 +#if !__GNUC_PREREQ__(2, 7) && !defined(__INTEL_COMPILER)
1.358 +#define __printflike(fmtarg, firstvararg)
1.359 +#define __scanflike(fmtarg, firstvararg)
1.360 +#else
1.361 +#define __printflike(fmtarg, firstvararg) \
1.362 + __attribute__((__format__ (__printf__, fmtarg, firstvararg)))
1.363 +#define __scanflike(fmtarg, firstvararg) \
1.364 + __attribute__((__format__ (__scanf__, fmtarg, firstvararg)))
1.365 +#endif
1.366 +
1.367 +/* Compiler-dependent macros that rely on FreeBSD-specific extensions. */
1.368 +#if __FreeBSD_cc_version >= 300001 && defined(__GNUC__) && !defined(__INTEL_COMPILER)
1.369 +#define __printf0like(fmtarg, firstvararg) \
1.370 + __attribute__((__format__ (__printf0__, fmtarg, firstvararg)))
1.371 +#else
1.372 +#define __printf0like(fmtarg, firstvararg)
1.373 +#endif
1.374 +
1.375 +#if defined(__GNUC__) || defined(__INTEL_COMPILER)
1.376 +#ifndef __INTEL_COMPILER
1.377 +#define __strong_reference(sym,aliassym) \
1.378 + extern __typeof (sym) aliassym __attribute__ ((__alias__ (#sym)));
1.379 +#endif
1.380 +#ifdef __STDC__
1.381 +#define __weak_reference(sym,alias) \
1.382 + __asm__(".weak " #alias); \
1.383 + __asm__(".equ " #alias ", " #sym)
1.384 +#define __warn_references(sym,msg) \
1.385 + __asm__(".section .gnu.warning." #sym); \
1.386 + __asm__(".asciz \"" msg "\""); \
1.387 + __asm__(".previous")
1.388 +#else
1.389 +#define __weak_reference(sym,alias) \
1.390 + __asm__(".weak alias"); \
1.391 + __asm__(".equ alias, sym")
1.392 +#define __warn_references(sym,msg) \
1.393 + __asm__(".section .gnu.warning.sym"); \
1.394 + __asm__(".asciz \"msg\""); \
1.395 + __asm__(".previous")
1.396 +#endif /* __STDC__ */
1.397 +#endif /* __GNUC__ || __INTEL_COMPILER */
1.398 +
1.399 +#if defined(__GNUC__) || defined(__INTEL_COMPILER)
1.400 +#define __IDSTRING(name,string) __asm__(".ident\t\"" string "\"")
1.401 +#else
1.402 +/*
1.403 + * The following definition might not work well if used in header files,
1.404 + * but it should be better than nothing. If you want a "do nothing"
1.405 + * version, then it should generate some harmless declaration, such as:
1.406 + * #define __IDSTRING(name,string) struct __hack
1.407 + */
1.408 +#define __IDSTRING(name,string) static const char name[] __unused = string
1.409 +#endif
1.410 +
1.411 +/*
1.412 + * Embed the rcs id of a source file in the resulting library. Note that in
1.413 + * more recent ELF binutils, we use .ident allowing the ID to be stripped.
1.414 + * Usage:
1.415 + * __FBSDID("$FreeBSD: src/sys/sys/cdefs.h,v 1.88.2.1 2005/10/09 07:48:48 netchild Exp $");
1.416 + */
1.417 +#ifndef __FBSDID
1.418 +#if !defined(lint) && !defined(STRIP_FBSDID)
1.419 +#define __FBSDID(s) __IDSTRING(__CONCAT(__rcsid_,__LINE__),s)
1.420 +#else
1.421 +#define __FBSDID(s) struct __hack
1.422 +#endif
1.423 +#endif
1.424 +
1.425 +#ifndef __RCSID
1.426 +#ifndef NO__RCSID
1.427 +#define __RCSID(s) __IDSTRING(__CONCAT(__rcsid_,__LINE__),s)
1.428 +#else
1.429 +#define __RCSID(s) struct __hack
1.430 +#endif
1.431 +#endif
1.432 +
1.433 +#ifndef __RCSID_SOURCE
1.434 +#ifndef NO__RCSID_SOURCE
1.435 +#define __RCSID_SOURCE(s) __IDSTRING(__CONCAT(__rcsid_source_,__LINE__),s)
1.436 +#else
1.437 +#define __RCSID_SOURCE(s) struct __hack
1.438 +#endif
1.439 +#endif
1.440 +
1.441 +#ifndef __SCCSID
1.442 +#ifndef NO__SCCSID
1.443 +#define __SCCSID(s) __IDSTRING(__CONCAT(__sccsid_,__LINE__),s)
1.444 +#else
1.445 +#define __SCCSID(s) struct __hack
1.446 +#endif
1.447 +#endif
1.448 +
1.449 +#ifndef __COPYRIGHT
1.450 +#ifndef NO__COPYRIGHT
1.451 +#define __COPYRIGHT(s) __IDSTRING(__CONCAT(__copyright_,__LINE__),s)
1.452 +#else
1.453 +#define __COPYRIGHT(s) struct __hack
1.454 +#endif
1.455 +#endif
1.456 +
1.457 +#ifndef __DECONST
1.458 +#define __DECONST(type, var) ((type)(uintptr_t)(const void *)(var))
1.459 +#endif
1.460 +
1.461 +#ifndef __DEVOLATILE
1.462 +#define __DEVOLATILE(type, var) ((type)(uintptr_t)(volatile void *)(var))
1.463 +#endif
1.464 +
1.465 +#ifndef __DEQUALIFY
1.466 +#define __DEQUALIFY(type, var) ((type)(uintptr_t)(const volatile void *)(var))
1.467 +#endif
1.468 +
1.469 +/*-
1.470 + * The following definitions are an extension of the behavior originally
1.471 + * implemented in <sys/_posix.h>, but with a different level of granularity.
1.472 + * POSIX.1 requires that the macros we test be defined before any standard
1.473 + * header file is included.
1.474 + *
1.475 + * Here's a quick run-down of the versions:
1.476 + * defined(_POSIX_SOURCE) 1003.1-1988
1.477 + * _POSIX_C_SOURCE == 1 1003.1-1990
1.478 + * _POSIX_C_SOURCE == 2 1003.2-1992 C Language Binding Option
1.479 + * _POSIX_C_SOURCE == 199309 1003.1b-1993
1.480 + * _POSIX_C_SOURCE == 199506 1003.1c-1995, 1003.1i-1995,
1.481 + * and the omnibus ISO/IEC 9945-1: 1996
1.482 + * _POSIX_C_SOURCE == 200112 1003.1-2001
1.483 + *
1.484 + * In addition, the X/Open Portability Guide, which is now the Single UNIX
1.485 + * Specification, defines a feature-test macro which indicates the version of
1.486 + * that specification, and which subsumes _POSIX_C_SOURCE.
1.487 + *
1.488 + * Our macros begin with two underscores to avoid namespace screwage.
1.489 + */
1.490 +
1.491 +/* Deal with IEEE Std. 1003.1-1990, in which _POSIX_C_SOURCE == 1. */
1.492 +#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 1
1.493 +#undef _POSIX_C_SOURCE /* Probably illegal, but beyond caring now. */
1.494 +#define _POSIX_C_SOURCE 199009
1.495 +#endif
1.496 +
1.497 +/* Deal with IEEE Std. 1003.2-1992, in which _POSIX_C_SOURCE == 2. */
1.498 +#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 2
1.499 +#undef _POSIX_C_SOURCE
1.500 +#define _POSIX_C_SOURCE 199209
1.501 +#endif
1.502 +
1.503 +/* Deal with various X/Open Portability Guides and Single UNIX Spec. */
1.504 +#ifdef _XOPEN_SOURCE
1.505 +#if _XOPEN_SOURCE - 0 >= 600
1.506 +#define __XSI_VISIBLE 600
1.507 +#undef _POSIX_C_SOURCE
1.508 +#define _POSIX_C_SOURCE 200112
1.509 +#elif _XOPEN_SOURCE - 0 >= 500
1.510 +#define __XSI_VISIBLE 500
1.511 +#undef _POSIX_C_SOURCE
1.512 +#define _POSIX_C_SOURCE 199506
1.513 +#endif
1.514 +#endif
1.515 +
1.516 +/*
1.517 + * Deal with all versions of POSIX. The ordering relative to the tests above is
1.518 + * important.
1.519 + */
1.520 +#if defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE)
1.521 +#define _POSIX_C_SOURCE 198808
1.522 +#endif
1.523 +#ifdef _POSIX_C_SOURCE
1.524 +#if _POSIX_C_SOURCE >= 200112
1.525 +#ifdef __SYMBIAN32__
1.526 +#define __XSI_VISIBLE 600
1.527 +#define __BSD_VISIBLE 1
1.528 +#endif //__SYMBIAN32__
1.529 +#define __POSIX_VISIBLE 200112
1.530 +#define __ISO_C_VISIBLE 1999
1.531 +#elif _POSIX_C_SOURCE >= 199506
1.532 +#define __POSIX_VISIBLE 199506
1.533 +#define __ISO_C_VISIBLE 1990
1.534 +#elif _POSIX_C_SOURCE >= 199309
1.535 +#define __POSIX_VISIBLE 199309
1.536 +#define __ISO_C_VISIBLE 1990
1.537 +#elif _POSIX_C_SOURCE >= 199209
1.538 +#define __POSIX_VISIBLE 199209
1.539 +#define __ISO_C_VISIBLE 1990
1.540 +#elif _POSIX_C_SOURCE >= 199009
1.541 +#define __POSIX_VISIBLE 199009
1.542 +#define __ISO_C_VISIBLE 1990
1.543 +#else
1.544 +#define __POSIX_VISIBLE 198808
1.545 +#define __ISO_C_VISIBLE 0
1.546 +#endif /* _POSIX_C_SOURCE */
1.547 +#else
1.548 +/*-
1.549 + * Deal with _ANSI_SOURCE:
1.550 + * If it is defined, and no other compilation environment is explicitly
1.551 + * requested, then define our internal feature-test macros to zero. This
1.552 + * makes no difference to the preprocessor (undefined symbols in preprocessing
1.553 + * expressions are defined to have value zero), but makes it more convenient for
1.554 + * a test program to print out the values.
1.555 + *
1.556 + * If a program mistakenly defines _ANSI_SOURCE and some other macro such as
1.557 + * _POSIX_C_SOURCE, we will assume that it wants the broader compilation
1.558 + * environment (and in fact we will never get here).
1.559 + */
1.560 +#if defined(_ANSI_SOURCE) /* Hide almost everything. */
1.561 +#define __POSIX_VISIBLE 0
1.562 +#define __XSI_VISIBLE 0
1.563 +#define __BSD_VISIBLE 0
1.564 +#define __ISO_C_VISIBLE 1990
1.565 +#elif defined(_C99_SOURCE) /* Localism to specify strict C99 env. */
1.566 +#define __POSIX_VISIBLE 0
1.567 +#define __XSI_VISIBLE 0
1.568 +#define __BSD_VISIBLE 0
1.569 +#define __ISO_C_VISIBLE 1999
1.570 +#else /* Default environment: show everything. */
1.571 +#define __POSIX_VISIBLE 200112
1.572 +#define __XSI_VISIBLE 600
1.573 +#define __BSD_VISIBLE 1
1.574 +#define __ISO_C_VISIBLE 1999
1.575 +#endif
1.576 +#endif
1.577 +
1.578 +#endif /* !_SYS_CDEFS_H_ */