epoc32/include/stdapis/sys/cdefs.h
author William Roberts <williamr@symbian.org>
Wed, 31 Mar 2010 12:33:34 +0100
branchSymbian3
changeset 4 837f303aceeb
parent 2 2fe1408b6811
permissions -rw-r--r--
Current Symbian^3 public API header files (from PDK 3.0.h)
This is the epoc32/include tree with the "platform" subtrees removed, and
all but a selected few mbg and rsg files removed.
     1 /*-
     2  *
     3  * Copyright (c) 1991, 1993
     4  *	The Regents of the University of California.  All rights reserved.
     5  *
     6  * This code is derived from software contributed to Berkeley by
     7  * Berkeley Software Design, Inc.
     8  *
     9  * Redistribution and use in source and binary forms, with or without
    10  * modification, are permitted provided that the following conditions
    11  * are met:
    12  * 1. Redistributions of source code must retain the above copyright
    13  *    notice, this list of conditions and the following disclaimer.
    14  * 2. Redistributions in binary form must reproduce the above copyright
    15  *    notice, this list of conditions and the following disclaimer in the
    16  *    documentation and/or other materials provided with the distribution.
    17  * 4. Neither the name of the University nor the names of its contributors
    18  *    may be used to endorse or promote products derived from this software
    19  *    without specific prior written permission.
    20  *
    21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
    22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
    25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
    26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
    27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
    28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
    29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
    30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
    31  * SUCH DAMAGE.
    32 * © Portions Copyright (c) 2005-2010 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
    33  *	@(#)cdefs.h	8.8 (Berkeley) 1/9/95
    34  * $FreeBSD: src/sys/sys/cdefs.h,v 1.88.2.1 2005/10/09 07:48:48 netchild Exp $
    35  */
    36 
    37 #ifndef	_SYS_CDEFS_H_
    38 #define	_SYS_CDEFS_H_
    39 
    40 #ifdef __SYMBIAN32__
    41 #include <_ansi.h>
    42 #endif
    43 
    44 #if defined(__cplusplus)
    45 #define	__BEGIN_DECLS	extern "C" {
    46 #define	__END_DECLS	}
    47 #else
    48 #define	__BEGIN_DECLS
    49 #define	__END_DECLS
    50 #endif
    51 
    52 /*
    53  * This code has been put in place to help reduce the addition of
    54  * compiler specific defines in FreeBSD code.  It helps to aid in
    55  * having a compiler-agnostic source tree.
    56  */
    57 
    58 #if defined(__GNUC__) || defined(__INTEL_COMPILER)
    59 
    60 #if __GNUC__ >= 3 || defined(__INTEL_COMPILER)
    61 #define __GNUCLIKE_ASM 3
    62 #define __GNUCLIKE_MATH_BUILTIN_CONSTANTS
    63 #else
    64 #define __GNUCLIKE_ASM 2
    65 #endif
    66 #define __GNUCLIKE___TYPEOF 1
    67 #define __GNUCLIKE___OFFSETOF 1
    68 #define __GNUCLIKE___SECTION 1
    69 
    70 #define __GNUCLIKE_ATTRIBUTE_MODE_DI 1
    71 
    72 #ifndef __INTEL_COMPILER
    73 # define __GNUCLIKE_CTOR_SECTION_HANDLING 1
    74 #endif
    75 
    76 #define __GNUCLIKE_BUILTIN_CONSTANT_P 1
    77 # if defined(__INTEL_COMPILER) && defined(__cplusplus) \
    78     && __INTEL_COMPILER < 800
    79 #  undef __GNUCLIKE_BUILTIN_CONSTANT_P
    80 # endif
    81 
    82 #if (__GNUC_MINOR__ > 95 || __GNUC__ >= 3) && !defined(__INTEL_COMPILER)
    83 # define __GNUCLIKE_BUILTIN_VARARGS 1
    84 # define __GNUCLIKE_BUILTIN_STDARG 1
    85 # define __GNUCLIKE_BUILTIN_VAALIST 1
    86 #endif
    87 
    88 #if defined(__GNUC__)
    89 # define __GNUC_VA_LIST_COMPATIBILITY 1
    90 #endif
    91 
    92 #ifndef __INTEL_COMPILER
    93 # define __GNUCLIKE_BUILTIN_NEXT_ARG 1
    94 # define __GNUCLIKE_MATH_BUILTIN_RELOPS
    95 #endif
    96 
    97 #define __GNUCLIKE_BUILTIN_MEMCPY 1
    98 
    99 /* XXX: if __GNUC__ >= 2: not tested everywhere originally, where replaced */
   100 #define __CC_SUPPORTS_INLINE 1
   101 #define __CC_SUPPORTS___INLINE 1
   102 #define __CC_SUPPORTS___INLINE__ 1
   103 
   104 #define __CC_SUPPORTS___FUNC__ 1
   105 #define __CC_SUPPORTS_WARNING 1
   106 
   107 #define __CC_SUPPORTS_VARADIC_XXX 1 /* see varargs.h */
   108 
   109 #define __CC_SUPPORTS_DYNAMIC_ARRAY_INIT 1
   110 
   111 /* XXX: sys/dev/mpt/mpilib/mpi_type.h uses it, someone should review it */
   112 #define __CC_INT_IS_32BIT 1
   113 
   114 #endif /* __GNUC__ || __INTEL_COMPILER */
   115 
   116 /*
   117  * Macro to test if we're using a specific version of gcc or later.
   118  */
   119 #if defined(__GNUC__) && !defined(__INTEL_COMPILER)
   120 #define	__GNUC_PREREQ__(ma, mi)	\
   121 	(__GNUC__ > (ma) || __GNUC__ == (ma) && __GNUC_MINOR__ >= (mi))
   122 #else
   123 #define	__GNUC_PREREQ__(ma, mi)	0
   124 #endif
   125 
   126 /*
   127  * The __CONCAT macro is used to concatenate parts of symbol names, e.g.
   128  * with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo.
   129  * The __CONCAT macro is a bit tricky to use if it must work in non-ANSI
   130  * mode -- there must be no spaces between its arguments, and for nested
   131  * __CONCAT's, all the __CONCAT's must be at the left.  __CONCAT can also
   132  * concatenate double-quoted strings produced by the __STRING macro, but
   133  * this only works with ANSI C.
   134  *
   135  * __XSTRING is like __STRING, but it expands any macros in its argument
   136  * first.  It is only available with ANSI C.
   137  */
   138 #if defined(__STDC__) || defined(__cplusplus)
   139 #define	__P(protos)	protos		/* full-blown ANSI C */
   140 #define	__CONCAT1(x,y)	x ## y
   141 #define	__CONCAT(x,y)	__CONCAT1(x,y)
   142 #define	__STRING(x)	#x		/* stringify without expanding x */
   143 #define	__XSTRING(x)	__STRING(x)	/* expand x, then stringify */
   144 
   145 #define	__const		const		/* define reserved names to standard */
   146 #define	__signed	signed
   147 #define	__volatile	volatile
   148 #if defined(__cplusplus)
   149 #define	__inline	inline		/* convert to C++ keyword */
   150 #else
   151 #if !(defined(__CC_SUPPORTS___INLINE))
   152 #define	__inline			/* delete GCC keyword */
   153 #endif /* ! __CC_SUPPORTS___INLINE */
   154 #endif /* !__cplusplus */
   155 
   156 #else	/* !(__STDC__ || __cplusplus) */
   157 #define	__P(protos)	()		/* traditional C preprocessor */
   158 #define	__CONCAT(x,y)	x/**/y
   159 #define	__STRING(x)	"x"
   160 
   161 #if !defined(__CC_SUPPORTS___INLINE)
   162 #define	__const				/* delete pseudo-ANSI C keywords */
   163 #define	__inline
   164 #define	__signed
   165 #define	__volatile
   166 /*
   167  * In non-ANSI C environments, new programs will want ANSI-only C keywords
   168  * deleted from the program and old programs will want them left alone.
   169  * When using a compiler other than gcc, programs using the ANSI C keywords
   170  * const, inline etc. as normal identifiers should define -DNO_ANSI_KEYWORDS.
   171  * When using "gcc -traditional", we assume that this is the intent; if
   172  * __GNUC__ is defined but __STDC__ is not, we leave the new keywords alone.
   173  */
   174 #ifndef	NO_ANSI_KEYWORDS
   175 #define	const				/* delete ANSI C keywords */
   176 #define	inline
   177 #define	signed
   178 #define	volatile
   179 #endif	/* !NO_ANSI_KEYWORDS */
   180 #endif	/* !__CC_SUPPORTS___INLINE */
   181 #endif	/* !(__STDC__ || __cplusplus) */
   182 
   183 /*
   184  * Compiler-dependent macros to help declare dead (non-returning) and
   185  * pure (no side effects) functions, and unused variables.  They are
   186  * null except for versions of gcc that are known to support the features
   187  * properly (old versions of gcc-2 supported the dead and pure features
   188  * in a different (wrong) way).  If we do not provide an implementation
   189  * for a given compiler, let the compile fail if it is told to use
   190  * a feature that we cannot live without.
   191  */
   192 #ifdef lint
   193 #define	__dead2
   194 #define	__pure2
   195 #define	__unused
   196 #define	__packed
   197 #define	__aligned(x)
   198 #define	__section(x)
   199 #else
   200 #if !__GNUC_PREREQ__(2, 5) && !defined(__INTEL_COMPILER)
   201 #define	__dead2
   202 #define	__pure2
   203 #define	__unused
   204 #endif
   205 #if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 && __GNUC_MINOR__ < 7 && !defined(__INTEL_COMPILER)
   206 #define	__dead2		__attribute__((__noreturn__))
   207 #define	__pure2		__attribute__((__const__))
   208 #define	__unused
   209 /* XXX Find out what to do for __packed, __aligned and __section */
   210 #endif
   211 #if __GNUC_PREREQ__(2, 7)
   212 #define	__dead2		__attribute__((__noreturn__))
   213 #define	__pure2		__attribute__((__const__))
   214 #define	__unused	__attribute__((__unused__))
   215 #define	__used		__attribute__((__used__))
   216 #define	__packed	__attribute__((__packed__))
   217 #define	__aligned(x)	__attribute__((__aligned__(x)))
   218 #define	__section(x)	__attribute__((__section__(x)))
   219 #endif
   220 #if defined(__INTEL_COMPILER)
   221 #define __dead2		__attribute__((__noreturn__))
   222 #define __pure2		__attribute__((__const__))
   223 #define __unused	__attribute__((__unused__))
   224 #define __used		__attribute__((__used__))
   225 #define __packed	__attribute__((__packed__))
   226 #define __aligned(x)	__attribute__((__aligned__(x)))
   227 #define __section(x)	__attribute__((__section__(x)))
   228 #endif
   229 #endif
   230 
   231 #if __GNUC_PREREQ__(2, 96)
   232 #define	__pure		__attribute__((__pure__))
   233 #else
   234 #define	__pure
   235 #endif
   236 
   237 #if __GNUC_PREREQ__(3, 1) || (defined(__INTEL_COMPILER) && __INTEL_COMPILER >= 800)
   238 #define	__always_inline	__attribute__((__always_inline__))
   239 #else
   240 #define	__always_inline
   241 #endif
   242 
   243 #if __GNUC_PREREQ__(3, 3)
   244 #define __nonnull(x)	__attribute__((__nonnull__(x)))
   245 #else
   246 #define __nonnull(x)
   247 #endif
   248 
   249 /* XXX: should use `#if __STDC_VERSION__ < 199901'. */
   250 #if __STDC_VERSION__ < 199901
   251 #if !__GNUC_PREREQ__(2, 7) && !defined(__INTEL_COMPILER)
   252 #define	__func__	""
   253 #endif
   254 #endif
   255 
   256 #if (defined(__INTEL_COMPILER) || (defined(__GNUC__) && __GNUC__ >= 2)) && !defined(__STRICT_ANSI__) || __STDC_VERSION__ >= 199901
   257 #ifdef __SYMBIAN32__
   258 #ifndef __LONG_LONG_SUPPORTED
   259 #define	__LONG_LONG_SUPPORTED
   260 #endif /* __LONG_LONG_SUPPORTED */
   261 #else
   262 #define	__LONG_LONG_SUPPORTED
   263 #endif /* __SYMBIAN32__ */
   264 #endif
   265 
   266 #ifdef __SYMBIAN32__
   267 #if ((defined(__ARMCC__) && (__ARMCC_VERSION > 220000) ) || (defined(__WINSCW__)))
   268 #ifndef __LONG_LONG_SUPPORTED
   269 #define __LONG_LONG_SUPPORTED
   270 #endif /* __LONG_LONG_SUPPORTED */
   271 #endif
   272 #endif /*__SYMBIAN32__*/
   273 
   274 
   275 /*
   276  * GCC 2.95 provides `__restrict' as an extension to C90 to support the
   277  * C99-specific `restrict' type qualifier.  We happen to use `__restrict' as
   278  * a way to define the `restrict' type qualifier without disturbing older
   279  * software that is unaware of C99 keywords.
   280  */
   281 #if !(__GNUC__ == 2 && __GNUC_MINOR__ == 95)
   282 #if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 199901
   283 #define	__restrict
   284 #else
   285 #define	__restrict	restrict
   286 #endif
   287 #endif
   288 
   289 /*
   290  * GNU C version 2.96 adds explicit branch prediction so that
   291  * the CPU back-end can hint the processor and also so that
   292  * code blocks can be reordered such that the predicted path
   293  * sees a more linear flow, thus improving cache behavior, etc.
   294  *
   295  * The following two macros provide us with a way to utilize this
   296  * compiler feature.  Use __predict_true() if you expect the expression
   297  * to evaluate to true, and __predict_false() if you expect the
   298  * expression to evaluate to false.
   299  *
   300  * A few notes about usage:
   301  *
   302  *	* Generally, __predict_false() error condition checks (unless
   303  *	  you have some _strong_ reason to do otherwise, in which case
   304  *	  document it), and/or __predict_true() `no-error' condition
   305  *	  checks, assuming you want to optimize for the no-error case.
   306  *
   307  *	* Other than that, if you don't know the likelihood of a test
   308  *	  succeeding from empirical or other `hard' evidence, don't
   309  *	  make predictions.
   310  *
   311  *	* These are meant to be used in places that are run `a lot'.
   312  *	  It is wasteful to make predictions in code that is run
   313  *	  seldomly (e.g. at subsystem initialization time) as the
   314  *	  basic block reordering that this affects can often generate
   315  *	  larger code.
   316  */
   317 #if __GNUC_PREREQ__(2, 96)
   318 #define __predict_true(exp)     __builtin_expect((exp), 1)
   319 #define __predict_false(exp)    __builtin_expect((exp), 0)
   320 #else
   321 #define __predict_true(exp)     (exp)
   322 #define __predict_false(exp)    (exp)
   323 #endif
   324 
   325 /*
   326  * We define this here since <stddef.h>, <sys/queue.h>, and <sys/types.h>
   327  * require it.
   328  */
   329 #if !defined(__cplusplus)
   330 #define	__offsetof(type, field)	((size_t)(&((type *)0)->field))
   331 #else
   332 #if defined(__GNUC__)
   333 #if(__GNUC__ > 3)
   334 #define __offsetof(type, field)					\
   335        (__builtin_offsetof (type,field))
   336 #else
   337 #define __offsetof(type, field)					\
   338        (__offsetof__ (type,field))
   339 #endif
   340 #else
   341 #define	__offsetof(type, field)	(reinterpret_cast <size_t>			\
   342     (&reinterpret_cast <const volatile char &>	\
   343                (static_cast<type *> (0)->field)))
   344 #endif
   345 #endif
   346 
   347 #define	__rangeof(type, start, end) \
   348 	(__offsetof(type, end) - __offsetof(type, start))
   349 
   350 /*
   351  * Compiler-dependent macros to declare that functions take printf-like
   352  * or scanf-like arguments.  They are null except for versions of gcc
   353  * that are known to support the features properly (old versions of gcc-2
   354  * didn't permit keeping the keywords out of the application namespace).
   355  */
   356 #if !__GNUC_PREREQ__(2, 7) && !defined(__INTEL_COMPILER)
   357 #define	__printflike(fmtarg, firstvararg)
   358 #define	__scanflike(fmtarg, firstvararg)
   359 #else
   360 #define	__printflike(fmtarg, firstvararg) \
   361 	    __attribute__((__format__ (__printf__, fmtarg, firstvararg)))
   362 #define	__scanflike(fmtarg, firstvararg) \
   363 	    __attribute__((__format__ (__scanf__, fmtarg, firstvararg)))
   364 #endif
   365 
   366 /* Compiler-dependent macros that rely on FreeBSD-specific extensions. */
   367 #if __FreeBSD_cc_version >= 300001 && defined(__GNUC__) && !defined(__INTEL_COMPILER)
   368 #define	__printf0like(fmtarg, firstvararg) \
   369 	    __attribute__((__format__ (__printf0__, fmtarg, firstvararg)))
   370 #else
   371 #define	__printf0like(fmtarg, firstvararg)
   372 #endif
   373 
   374 #if defined(__GNUC__) || defined(__INTEL_COMPILER)
   375 #ifndef __INTEL_COMPILER
   376 #define	__strong_reference(sym,aliassym)	\
   377 	extern __typeof (sym) aliassym __attribute__ ((__alias__ (#sym)));
   378 #endif
   379 #ifdef __STDC__
   380 #define	__weak_reference(sym,alias)	\
   381 	__asm__(".weak " #alias);	\
   382 	__asm__(".equ "  #alias ", " #sym)
   383 #define	__warn_references(sym,msg)	\
   384 	__asm__(".section .gnu.warning." #sym);	\
   385 	__asm__(".asciz \"" msg "\"");	\
   386 	__asm__(".previous")
   387 #else
   388 #define	__weak_reference(sym,alias)	\
   389 	__asm__(".weak alias");		\
   390 	__asm__(".equ alias, sym")
   391 #define	__warn_references(sym,msg)	\
   392 	__asm__(".section .gnu.warning.sym"); \
   393 	__asm__(".asciz \"msg\"");	\
   394 	__asm__(".previous")
   395 #endif	/* __STDC__ */
   396 #endif	/* __GNUC__ || __INTEL_COMPILER */
   397 
   398 #if defined(__GNUC__) || defined(__INTEL_COMPILER)
   399 #define	__IDSTRING(name,string)	__asm__(".ident\t\"" string "\"")
   400 #else
   401 /*
   402  * The following definition might not work well if used in header files,
   403  * but it should be better than nothing.  If you want a "do nothing"
   404  * version, then it should generate some harmless declaration, such as:
   405  *    #define __IDSTRING(name,string)	struct __hack
   406  */
   407 #define	__IDSTRING(name,string)	static const char name[] __unused = string
   408 #endif
   409 
   410 /*
   411  * Embed the rcs id of a source file in the resulting library.  Note that in
   412  * more recent ELF binutils, we use .ident allowing the ID to be stripped.
   413  * Usage:
   414  *	__FBSDID("$FreeBSD: src/sys/sys/cdefs.h,v 1.88.2.1 2005/10/09 07:48:48 netchild Exp $");
   415  */
   416 #ifndef	__FBSDID
   417 #if !defined(lint) && !defined(STRIP_FBSDID)
   418 #define	__FBSDID(s)	__IDSTRING(__CONCAT(__rcsid_,__LINE__),s)
   419 #else
   420 #define	__FBSDID(s)	struct __hack
   421 #endif
   422 #endif
   423 
   424 #ifndef	__RCSID
   425 #ifndef	NO__RCSID
   426 #define	__RCSID(s)	__IDSTRING(__CONCAT(__rcsid_,__LINE__),s)
   427 #else
   428 #define	__RCSID(s)	struct __hack
   429 #endif
   430 #endif
   431 
   432 #ifndef	__RCSID_SOURCE
   433 #ifndef	NO__RCSID_SOURCE
   434 #define	__RCSID_SOURCE(s)	__IDSTRING(__CONCAT(__rcsid_source_,__LINE__),s)
   435 #else
   436 #define	__RCSID_SOURCE(s)	struct __hack
   437 #endif
   438 #endif
   439 
   440 #ifndef	__SCCSID
   441 #ifndef	NO__SCCSID
   442 #define	__SCCSID(s)	__IDSTRING(__CONCAT(__sccsid_,__LINE__),s)
   443 #else
   444 #define	__SCCSID(s)	struct __hack
   445 #endif
   446 #endif
   447 
   448 #ifndef	__COPYRIGHT
   449 #ifndef	NO__COPYRIGHT
   450 #define	__COPYRIGHT(s)	__IDSTRING(__CONCAT(__copyright_,__LINE__),s)
   451 #else
   452 #define	__COPYRIGHT(s)	struct __hack
   453 #endif
   454 #endif
   455 
   456 #ifndef	__DECONST
   457 #define	__DECONST(type, var)	((type)(uintptr_t)(const void *)(var))
   458 #endif
   459 
   460 #ifndef	__DEVOLATILE
   461 #define	__DEVOLATILE(type, var)	((type)(uintptr_t)(volatile void *)(var))
   462 #endif
   463 
   464 #ifndef	__DEQUALIFY
   465 #define	__DEQUALIFY(type, var)	((type)(uintptr_t)(const volatile void *)(var))
   466 #endif
   467 
   468 /*-
   469  * The following definitions are an extension of the behavior originally
   470  * implemented in <sys/_posix.h>, but with a different level of granularity.
   471  * POSIX.1 requires that the macros we test be defined before any standard
   472  * header file is included.
   473  *
   474  * Here's a quick run-down of the versions:
   475  *  defined(_POSIX_SOURCE)		1003.1-1988
   476  *  _POSIX_C_SOURCE == 1		1003.1-1990
   477  *  _POSIX_C_SOURCE == 2		1003.2-1992 C Language Binding Option
   478  *  _POSIX_C_SOURCE == 199309		1003.1b-1993
   479  *  _POSIX_C_SOURCE == 199506		1003.1c-1995, 1003.1i-1995,
   480  *					and the omnibus ISO/IEC 9945-1: 1996
   481  *  _POSIX_C_SOURCE == 200112		1003.1-2001
   482  *
   483  * In addition, the X/Open Portability Guide, which is now the Single UNIX
   484  * Specification, defines a feature-test macro which indicates the version of
   485  * that specification, and which subsumes _POSIX_C_SOURCE.
   486  *
   487  * Our macros begin with two underscores to avoid namespace screwage.
   488  */
   489 
   490 /* Deal with IEEE Std. 1003.1-1990, in which _POSIX_C_SOURCE == 1. */
   491 #if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 1
   492 #undef _POSIX_C_SOURCE		/* Probably illegal, but beyond caring now. */
   493 #define	_POSIX_C_SOURCE		199009
   494 #endif
   495 
   496 /* Deal with IEEE Std. 1003.2-1992, in which _POSIX_C_SOURCE == 2. */
   497 #if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 2
   498 #undef _POSIX_C_SOURCE
   499 #define	_POSIX_C_SOURCE		199209
   500 #endif
   501 
   502 /* Deal with various X/Open Portability Guides and Single UNIX Spec. */
   503 #ifdef _XOPEN_SOURCE
   504 #if _XOPEN_SOURCE - 0 >= 600
   505 #define	__XSI_VISIBLE		600
   506 #undef _POSIX_C_SOURCE
   507 #define	_POSIX_C_SOURCE		200112
   508 #elif _XOPEN_SOURCE - 0 >= 500
   509 #define	__XSI_VISIBLE		500
   510 #undef _POSIX_C_SOURCE
   511 #define	_POSIX_C_SOURCE		199506
   512 #endif
   513 #endif
   514 
   515 /*
   516  * Deal with all versions of POSIX.  The ordering relative to the tests above is
   517  * important.
   518  */
   519 #if defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE)
   520 #define	_POSIX_C_SOURCE		198808
   521 #endif
   522 #ifdef _POSIX_C_SOURCE
   523 #if _POSIX_C_SOURCE >= 200112
   524 #ifdef __SYMBIAN32__
   525 #define	__XSI_VISIBLE		600
   526 #define	__BSD_VISIBLE		1
   527 #endif //__SYMBIAN32__
   528 #define	__POSIX_VISIBLE		200112
   529 #define	__ISO_C_VISIBLE		1999
   530 #elif _POSIX_C_SOURCE >= 199506
   531 #define	__POSIX_VISIBLE		199506
   532 #define	__ISO_C_VISIBLE		1990
   533 #elif _POSIX_C_SOURCE >= 199309
   534 #define	__POSIX_VISIBLE		199309
   535 #define	__ISO_C_VISIBLE		1990
   536 #elif _POSIX_C_SOURCE >= 199209
   537 #define	__POSIX_VISIBLE		199209
   538 #define	__ISO_C_VISIBLE		1990
   539 #elif _POSIX_C_SOURCE >= 199009
   540 #define	__POSIX_VISIBLE		199009
   541 #define	__ISO_C_VISIBLE		1990
   542 #else
   543 #define	__POSIX_VISIBLE		198808
   544 #define	__ISO_C_VISIBLE		0
   545 #endif /* _POSIX_C_SOURCE */
   546 #else
   547 /*-
   548  * Deal with _ANSI_SOURCE:
   549  * If it is defined, and no other compilation environment is explicitly
   550  * requested, then define our internal feature-test macros to zero.  This
   551  * makes no difference to the preprocessor (undefined symbols in preprocessing
   552  * expressions are defined to have value zero), but makes it more convenient for
   553  * a test program to print out the values.
   554  *
   555  * If a program mistakenly defines _ANSI_SOURCE and some other macro such as
   556  * _POSIX_C_SOURCE, we will assume that it wants the broader compilation
   557  * environment (and in fact we will never get here).
   558  */
   559 #if defined(_ANSI_SOURCE)	/* Hide almost everything. */
   560 #define	__POSIX_VISIBLE		0
   561 #define	__XSI_VISIBLE		0
   562 #define	__BSD_VISIBLE		0
   563 #define	__ISO_C_VISIBLE		1990
   564 #elif defined(_C99_SOURCE)	/* Localism to specify strict C99 env. */
   565 #define	__POSIX_VISIBLE		0
   566 #define	__XSI_VISIBLE		0
   567 #define	__BSD_VISIBLE		0
   568 #define	__ISO_C_VISIBLE		1999
   569 #else				/* Default environment: show everything. */
   570 #define	__POSIX_VISIBLE		200112
   571 #define	__XSI_VISIBLE		600
   572 #define	__BSD_VISIBLE		1
   573 #define	__ISO_C_VISIBLE		1999
   574 #endif
   575 #endif
   576 
   577 #endif /* !_SYS_CDEFS_H_ */