FreeBSD/Linux Kernel Cross Reference
sys/sys/cdefs.h
1 /*-
2 * Copyright (c) 1991, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Berkeley Software Design, Inc.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 4. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * @(#)cdefs.h 8.8 (Berkeley) 1/9/95
33 * $FreeBSD$
34 */
35
36 #ifndef _SYS_CDEFS_H_
37 #define _SYS_CDEFS_H_
38
39 #if defined(__cplusplus)
40 #define __BEGIN_DECLS extern "C" {
41 #define __END_DECLS }
42 #else
43 #define __BEGIN_DECLS
44 #define __END_DECLS
45 #endif
46
47 /*
48 * This code has been put in place to help reduce the addition of
49 * compiler specific defines in FreeBSD code. It helps to aid in
50 * having a compiler-agnostic source tree.
51 */
52
53 #if defined(__GNUC__) || defined(__INTEL_COMPILER)
54
55 #if __GNUC__ >= 3 || defined(__INTEL_COMPILER)
56 #define __GNUCLIKE_ASM 3
57 #define __GNUCLIKE_MATH_BUILTIN_CONSTANTS
58 #else
59 #define __GNUCLIKE_ASM 2
60 #endif
61 #define __GNUCLIKE___TYPEOF 1
62 #define __GNUCLIKE___OFFSETOF 1
63 #define __GNUCLIKE___SECTION 1
64
65 #define __GNUCLIKE_ATTRIBUTE_MODE_DI 1
66
67 #ifndef __INTEL_COMPILER
68 # define __GNUCLIKE_CTOR_SECTION_HANDLING 1
69 #endif
70
71 #define __GNUCLIKE_BUILTIN_CONSTANT_P 1
72 # if defined(__INTEL_COMPILER) && defined(__cplusplus) \
73 && __INTEL_COMPILER < 800
74 # undef __GNUCLIKE_BUILTIN_CONSTANT_P
75 # endif
76
77 #if (__GNUC_MINOR__ > 95 || __GNUC__ >= 3) && !defined(__INTEL_COMPILER)
78 # define __GNUCLIKE_BUILTIN_VARARGS 1
79 # define __GNUCLIKE_BUILTIN_STDARG 1
80 # define __GNUCLIKE_BUILTIN_VAALIST 1
81 #endif
82
83 #if defined(__GNUC__)
84 # define __GNUC_VA_LIST_COMPATIBILITY 1
85 #endif
86
87 #ifndef __INTEL_COMPILER
88 # define __GNUCLIKE_BUILTIN_NEXT_ARG 1
89 # define __GNUCLIKE_MATH_BUILTIN_RELOPS
90 #endif
91
92 #define __GNUCLIKE_BUILTIN_MEMCPY 1
93
94 /* XXX: if __GNUC__ >= 2: not tested everywhere originally, where replaced */
95 #define __CC_SUPPORTS_INLINE 1
96 #define __CC_SUPPORTS___INLINE 1
97 #define __CC_SUPPORTS___INLINE__ 1
98
99 #define __CC_SUPPORTS___FUNC__ 1
100 #define __CC_SUPPORTS_WARNING 1
101
102 #define __CC_SUPPORTS_VARADIC_XXX 1 /* see varargs.h */
103
104 #define __CC_SUPPORTS_DYNAMIC_ARRAY_INIT 1
105
106 /* XXX: sys/dev/mpt/mpilib/mpi_type.h uses it, someone should review it */
107 #define __CC_INT_IS_32BIT 1
108
109 #endif /* __GNUC__ || __INTEL_COMPILER */
110
111 /*
112 * Macro to test if we're using a specific version of gcc or later.
113 */
114 #if defined(__GNUC__) && !defined(__INTEL_COMPILER)
115 #define __GNUC_PREREQ__(ma, mi) \
116 (__GNUC__ > (ma) || __GNUC__ == (ma) && __GNUC_MINOR__ >= (mi))
117 #else
118 #define __GNUC_PREREQ__(ma, mi) 0
119 #endif
120
121 /*
122 * The __CONCAT macro is used to concatenate parts of symbol names, e.g.
123 * with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo.
124 * The __CONCAT macro is a bit tricky to use if it must work in non-ANSI
125 * mode -- there must be no spaces between its arguments, and for nested
126 * __CONCAT's, all the __CONCAT's must be at the left. __CONCAT can also
127 * concatenate double-quoted strings produced by the __STRING macro, but
128 * this only works with ANSI C.
129 *
130 * __XSTRING is like __STRING, but it expands any macros in its argument
131 * first. It is only available with ANSI C.
132 */
133 #if defined(__STDC__) || defined(__cplusplus)
134 #define __P(protos) protos /* full-blown ANSI C */
135 #define __CONCAT1(x,y) x ## y
136 #define __CONCAT(x,y) __CONCAT1(x,y)
137 #define __STRING(x) #x /* stringify without expanding x */
138 #define __XSTRING(x) __STRING(x) /* expand x, then stringify */
139
140 #define __const const /* define reserved names to standard */
141 #define __signed signed
142 #define __volatile volatile
143 #if defined(__cplusplus)
144 #define __inline inline /* convert to C++ keyword */
145 #else
146 #if !(defined(__CC_SUPPORTS___INLINE))
147 #define __inline /* delete GCC keyword */
148 #endif /* ! __CC_SUPPORTS___INLINE */
149 #endif /* !__cplusplus */
150
151 #else /* !(__STDC__ || __cplusplus) */
152 #define __P(protos) () /* traditional C preprocessor */
153 #define __CONCAT(x,y) x/**/y
154 #define __STRING(x) "x"
155
156 #if !defined(__CC_SUPPORTS___INLINE)
157 #define __const /* delete pseudo-ANSI C keywords */
158 #define __inline
159 #define __signed
160 #define __volatile
161 /*
162 * In non-ANSI C environments, new programs will want ANSI-only C keywords
163 * deleted from the program and old programs will want them left alone.
164 * When using a compiler other than gcc, programs using the ANSI C keywords
165 * const, inline etc. as normal identifiers should define -DNO_ANSI_KEYWORDS.
166 * When using "gcc -traditional", we assume that this is the intent; if
167 * __GNUC__ is defined but __STDC__ is not, we leave the new keywords alone.
168 */
169 #ifndef NO_ANSI_KEYWORDS
170 #define const /* delete ANSI C keywords */
171 #define inline
172 #define signed
173 #define volatile
174 #endif /* !NO_ANSI_KEYWORDS */
175 #endif /* !__CC_SUPPORTS___INLINE */
176 #endif /* !(__STDC__ || __cplusplus) */
177
178 /*
179 * Compiler-dependent macros to help declare dead (non-returning) and
180 * pure (no side effects) functions, and unused variables. They are
181 * null except for versions of gcc that are known to support the features
182 * properly (old versions of gcc-2 supported the dead and pure features
183 * in a different (wrong) way). If we do not provide an implementation
184 * for a given compiler, let the compile fail if it is told to use
185 * a feature that we cannot live without.
186 */
187 #ifdef lint
188 #define __dead2
189 #define __pure2
190 #define __unused
191 #define __packed
192 #define __aligned(x)
193 #define __section(x)
194 #else
195 #if !__GNUC_PREREQ__(2, 5) && !defined(__INTEL_COMPILER)
196 #define __dead2
197 #define __pure2
198 #define __unused
199 #endif
200 #if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 && __GNUC_MINOR__ < 7 && !defined(__INTEL_COMPILER)
201 #define __dead2 __attribute__((__noreturn__))
202 #define __pure2 __attribute__((__const__))
203 #define __unused
204 /* XXX Find out what to do for __packed, __aligned and __section */
205 #endif
206 #if __GNUC_PREREQ__(2, 7)
207 #define __dead2 __attribute__((__noreturn__))
208 #define __pure2 __attribute__((__const__))
209 #define __unused __attribute__((__unused__))
210 #define __used __attribute__((__used__))
211 #define __packed __attribute__((__packed__))
212 #define __aligned(x) __attribute__((__aligned__(x)))
213 #define __section(x) __attribute__((__section__(x)))
214 #endif
215 #if defined(__INTEL_COMPILER)
216 #define __dead2 __attribute__((__noreturn__))
217 #define __pure2 __attribute__((__const__))
218 #define __unused __attribute__((__unused__))
219 #define __used __attribute__((__used__))
220 #define __packed __attribute__((__packed__))
221 #define __aligned(x) __attribute__((__aligned__(x)))
222 #define __section(x) __attribute__((__section__(x)))
223 #endif
224 #endif
225
226 #if __GNUC_PREREQ__(2, 96)
227 #define __malloc_like __attribute__((__malloc__))
228 #define __pure __attribute__((__pure__))
229 #else
230 #define __malloc_like
231 #define __pure
232 #endif
233
234 #if __GNUC_PREREQ__(3, 1) || (defined(__INTEL_COMPILER) && __INTEL_COMPILER >= 800)
235 #define __always_inline __attribute__((__always_inline__))
236 #else
237 #define __always_inline
238 #endif
239
240 #if __GNUC_PREREQ__(4, 2) /* actually 4.1.3 */
241 #define __gnu89_inline __attribute__((__gnu_inline__)) __inline
242 #else
243 #define __gnu89_inline
244 #endif
245
246 #if __GNUC_PREREQ__(3, 1)
247 #define __noinline __attribute__ ((__noinline__))
248 #else
249 #define __noinline
250 #endif
251
252 #if __GNUC_PREREQ__(3, 3)
253 #define __nonnull(x) __attribute__((__nonnull__(x)))
254 #else
255 #define __nonnull(x)
256 #endif
257
258 /* XXX: should use `#if __STDC_VERSION__ < 199901'. */
259 #if !__GNUC_PREREQ__(2, 7) && !defined(__INTEL_COMPILER)
260 #define __func__ NULL
261 #endif
262
263 #if (defined(__INTEL_COMPILER) || (defined(__GNUC__) && __GNUC__ >= 2)) && !defined(__STRICT_ANSI__) || __STDC_VERSION__ >= 199901
264 #define __LONG_LONG_SUPPORTED
265 #endif
266
267 /*
268 * GCC 2.95 provides `__restrict' as an extension to C90 to support the
269 * C99-specific `restrict' type qualifier. We happen to use `__restrict' as
270 * a way to define the `restrict' type qualifier without disturbing older
271 * software that is unaware of C99 keywords.
272 */
273 #if !(__GNUC__ == 2 && __GNUC_MINOR__ == 95)
274 #if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 199901
275 #define __restrict
276 #else
277 #define __restrict restrict
278 #endif
279 #endif
280
281 /*
282 * GNU C version 2.96 adds explicit branch prediction so that
283 * the CPU back-end can hint the processor and also so that
284 * code blocks can be reordered such that the predicted path
285 * sees a more linear flow, thus improving cache behavior, etc.
286 *
287 * The following two macros provide us with a way to utilize this
288 * compiler feature. Use __predict_true() if you expect the expression
289 * to evaluate to true, and __predict_false() if you expect the
290 * expression to evaluate to false.
291 *
292 * A few notes about usage:
293 *
294 * * Generally, __predict_false() error condition checks (unless
295 * you have some _strong_ reason to do otherwise, in which case
296 * document it), and/or __predict_true() `no-error' condition
297 * checks, assuming you want to optimize for the no-error case.
298 *
299 * * Other than that, if you don't know the likelihood of a test
300 * succeeding from empirical or other `hard' evidence, don't
301 * make predictions.
302 *
303 * * These are meant to be used in places that are run `a lot'.
304 * It is wasteful to make predictions in code that is run
305 * seldomly (e.g. at subsystem initialization time) as the
306 * basic block reordering that this affects can often generate
307 * larger code.
308 */
309 #if __GNUC_PREREQ__(2, 96)
310 #define __predict_true(exp) __builtin_expect((exp), 1)
311 #define __predict_false(exp) __builtin_expect((exp), 0)
312 #else
313 #define __predict_true(exp) (exp)
314 #define __predict_false(exp) (exp)
315 #endif
316
317 /*
318 * We define this here since <stddef.h>, <sys/queue.h>, and <sys/types.h>
319 * require it.
320 */
321 #if __GNUC_PREREQ__(4, 1)
322 #define __offsetof(type, field) __builtin_offsetof(type, field)
323 #else
324 #ifndef __cplusplus
325 #define __offsetof(type, field) ((size_t)(&((type *)0)->field))
326 #else
327 #define __offsetof(type, field) \
328 (__offsetof__ (reinterpret_cast <size_t> \
329 (&reinterpret_cast <const volatile char &> \
330 (static_cast<type *> (0)->field))))
331 #endif
332 #endif
333 #define __rangeof(type, start, end) \
334 (__offsetof(type, end) - __offsetof(type, start))
335
336 /*
337 * Compiler-dependent macros to declare that functions take printf-like
338 * or scanf-like arguments. They are null except for versions of gcc
339 * that are known to support the features properly (old versions of gcc-2
340 * didn't permit keeping the keywords out of the application namespace).
341 */
342 #if !__GNUC_PREREQ__(2, 7) && !defined(__INTEL_COMPILER)
343 #define __printflike(fmtarg, firstvararg)
344 #define __scanflike(fmtarg, firstvararg)
345 #define __format_arg(fmtarg)
346 #else
347 #define __printflike(fmtarg, firstvararg) \
348 __attribute__((__format__ (__printf__, fmtarg, firstvararg)))
349 #define __scanflike(fmtarg, firstvararg) \
350 __attribute__((__format__ (__scanf__, fmtarg, firstvararg)))
351 #define __format_arg(fmtarg) __attribute__((__format_arg__ (fmtarg)))
352 #endif
353
354 /* Compiler-dependent macros that rely on FreeBSD-specific extensions. */
355 #if __FreeBSD_cc_version >= 300001 && defined(__GNUC__) && !defined(__INTEL_COMPILER)
356 #define __printf0like(fmtarg, firstvararg) \
357 __attribute__((__format__ (__printf0__, fmtarg, firstvararg)))
358 #else
359 #define __printf0like(fmtarg, firstvararg)
360 #endif
361
362 #if defined(__GNUC__) || defined(__INTEL_COMPILER)
363 #ifndef __INTEL_COMPILER
364 #define __strong_reference(sym,aliassym) \
365 extern __typeof (sym) aliassym __attribute__ ((__alias__ (#sym)))
366 #endif
367 #ifdef __STDC__
368 #define __weak_reference(sym,alias) \
369 __asm__(".weak " #alias); \
370 __asm__(".equ " #alias ", " #sym)
371 #define __warn_references(sym,msg) \
372 __asm__(".section .gnu.warning." #sym); \
373 __asm__(".asciz \"" msg "\""); \
374 __asm__(".previous")
375 #define __sym_compat(sym,impl,verid) \
376 __asm__(".symver " #impl ", " #sym "@" #verid)
377 #define __sym_default(sym,impl,verid) \
378 __asm__(".symver " #impl ", " #sym "@@" #verid)
379 #else
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 #define __sym_compat(sym,impl,verid) \
388 __asm__(".symver impl, sym@verid")
389 #define __sym_default(impl,sym,verid) \
390 __asm__(".symver impl, sym@@verid")
391 #endif /* __STDC__ */
392 #endif /* __GNUC__ || __INTEL_COMPILER */
393
394 #if defined(__GNUC__) || defined(__INTEL_COMPILER)
395 #define __IDSTRING(name,string) __asm__(".ident\t\"" string "\"")
396 #else
397 /*
398 * The following definition might not work well if used in header files,
399 * but it should be better than nothing. If you want a "do nothing"
400 * version, then it should generate some harmless declaration, such as:
401 * #define __IDSTRING(name,string) struct __hack
402 */
403 #define __IDSTRING(name,string) static const char name[] __unused = string
404 #endif
405
406 /*
407 * Embed the rcs id of a source file in the resulting library. Note that in
408 * more recent ELF binutils, we use .ident allowing the ID to be stripped.
409 * Usage:
410 * __FBSDID("$FreeBSD$");
411 */
412 #ifndef __FBSDID
413 #if !defined(lint) && !defined(STRIP_FBSDID)
414 #define __FBSDID(s) __IDSTRING(__CONCAT(__rcsid_,__LINE__),s)
415 #else
416 #define __FBSDID(s) struct __hack
417 #endif
418 #endif
419
420 #ifndef __RCSID
421 #ifndef NO__RCSID
422 #define __RCSID(s) __IDSTRING(__CONCAT(__rcsid_,__LINE__),s)
423 #else
424 #define __RCSID(s) struct __hack
425 #endif
426 #endif
427
428 #ifndef __RCSID_SOURCE
429 #ifndef NO__RCSID_SOURCE
430 #define __RCSID_SOURCE(s) __IDSTRING(__CONCAT(__rcsid_source_,__LINE__),s)
431 #else
432 #define __RCSID_SOURCE(s) struct __hack
433 #endif
434 #endif
435
436 #ifndef __SCCSID
437 #ifndef NO__SCCSID
438 #define __SCCSID(s) __IDSTRING(__CONCAT(__sccsid_,__LINE__),s)
439 #else
440 #define __SCCSID(s) struct __hack
441 #endif
442 #endif
443
444 #ifndef __COPYRIGHT
445 #ifndef NO__COPYRIGHT
446 #define __COPYRIGHT(s) __IDSTRING(__CONCAT(__copyright_,__LINE__),s)
447 #else
448 #define __COPYRIGHT(s) struct __hack
449 #endif
450 #endif
451
452 #ifndef __DECONST
453 #define __DECONST(type, var) ((type)(uintptr_t)(const void *)(var))
454 #endif
455
456 #ifndef __DEVOLATILE
457 #define __DEVOLATILE(type, var) ((type)(uintptr_t)(volatile void *)(var))
458 #endif
459
460 #ifndef __DEQUALIFY
461 #define __DEQUALIFY(type, var) ((type)(uintptr_t)(const volatile void *)(var))
462 #endif
463
464 /*-
465 * The following definitions are an extension of the behavior originally
466 * implemented in <sys/_posix.h>, but with a different level of granularity.
467 * POSIX.1 requires that the macros we test be defined before any standard
468 * header file is included.
469 *
470 * Here's a quick run-down of the versions:
471 * defined(_POSIX_SOURCE) 1003.1-1988
472 * _POSIX_C_SOURCE == 1 1003.1-1990
473 * _POSIX_C_SOURCE == 2 1003.2-1992 C Language Binding Option
474 * _POSIX_C_SOURCE == 199309 1003.1b-1993
475 * _POSIX_C_SOURCE == 199506 1003.1c-1995, 1003.1i-1995,
476 * and the omnibus ISO/IEC 9945-1: 1996
477 * _POSIX_C_SOURCE == 200112 1003.1-2001
478 *
479 * In addition, the X/Open Portability Guide, which is now the Single UNIX
480 * Specification, defines a feature-test macro which indicates the version of
481 * that specification, and which subsumes _POSIX_C_SOURCE.
482 *
483 * Our macros begin with two underscores to avoid namespace screwage.
484 */
485
486 /* Deal with IEEE Std. 1003.1-1990, in which _POSIX_C_SOURCE == 1. */
487 #if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 1
488 #undef _POSIX_C_SOURCE /* Probably illegal, but beyond caring now. */
489 #define _POSIX_C_SOURCE 199009
490 #endif
491
492 /* Deal with IEEE Std. 1003.2-1992, in which _POSIX_C_SOURCE == 2. */
493 #if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 2
494 #undef _POSIX_C_SOURCE
495 #define _POSIX_C_SOURCE 199209
496 #endif
497
498 /* Deal with various X/Open Portability Guides and Single UNIX Spec. */
499 #ifdef _XOPEN_SOURCE
500 #if _XOPEN_SOURCE - 0 >= 600
501 #define __XSI_VISIBLE 600
502 #undef _POSIX_C_SOURCE
503 #define _POSIX_C_SOURCE 200112
504 #elif _XOPEN_SOURCE - 0 >= 500
505 #define __XSI_VISIBLE 500
506 #undef _POSIX_C_SOURCE
507 #define _POSIX_C_SOURCE 199506
508 #endif
509 #endif
510
511 /*
512 * Deal with all versions of POSIX. The ordering relative to the tests above is
513 * important.
514 */
515 #if defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE)
516 #define _POSIX_C_SOURCE 198808
517 #endif
518 #ifdef _POSIX_C_SOURCE
519 #if _POSIX_C_SOURCE >= 200112
520 #define __POSIX_VISIBLE 200112
521 #define __ISO_C_VISIBLE 1999
522 #elif _POSIX_C_SOURCE >= 199506
523 #define __POSIX_VISIBLE 199506
524 #define __ISO_C_VISIBLE 1990
525 #elif _POSIX_C_SOURCE >= 199309
526 #define __POSIX_VISIBLE 199309
527 #define __ISO_C_VISIBLE 1990
528 #elif _POSIX_C_SOURCE >= 199209
529 #define __POSIX_VISIBLE 199209
530 #define __ISO_C_VISIBLE 1990
531 #elif _POSIX_C_SOURCE >= 199009
532 #define __POSIX_VISIBLE 199009
533 #define __ISO_C_VISIBLE 1990
534 #else
535 #define __POSIX_VISIBLE 198808
536 #define __ISO_C_VISIBLE 0
537 #endif /* _POSIX_C_SOURCE */
538 #else
539 /*-
540 * Deal with _ANSI_SOURCE:
541 * If it is defined, and no other compilation environment is explicitly
542 * requested, then define our internal feature-test macros to zero. This
543 * makes no difference to the preprocessor (undefined symbols in preprocessing
544 * expressions are defined to have value zero), but makes it more convenient for
545 * a test program to print out the values.
546 *
547 * If a program mistakenly defines _ANSI_SOURCE and some other macro such as
548 * _POSIX_C_SOURCE, we will assume that it wants the broader compilation
549 * environment (and in fact we will never get here).
550 */
551 #if defined(_ANSI_SOURCE) /* Hide almost everything. */
552 #define __POSIX_VISIBLE 0
553 #define __XSI_VISIBLE 0
554 #define __BSD_VISIBLE 0
555 #define __ISO_C_VISIBLE 1990
556 #elif defined(_C99_SOURCE) /* Localism to specify strict C99 env. */
557 #define __POSIX_VISIBLE 0
558 #define __XSI_VISIBLE 0
559 #define __BSD_VISIBLE 0
560 #define __ISO_C_VISIBLE 1999
561 #else /* Default environment: show everything. */
562 #define __POSIX_VISIBLE 200112
563 #define __XSI_VISIBLE 600
564 #define __BSD_VISIBLE 1
565 #define __ISO_C_VISIBLE 1999
566 #endif
567 #endif
568
569 #endif /* !_SYS_CDEFS_H_ */
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