[apple/xnu.git] / bsd / sys / cdefs.h

/*
 * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/* Copyright 1995 NeXT Computer, Inc. All rights reserved. */
/*
 * Copyright (c) 1991, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Berkeley Software Design, Inc.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	@(#)cdefs.h	8.8 (Berkeley) 1/9/95
 */

#ifndef	_CDEFS_H_
#define	_CDEFS_H_

#if defined(__cplusplus)
#define	__BEGIN_DECLS	extern "C" {
#define	__END_DECLS	}
#else
#define	__BEGIN_DECLS
#define	__END_DECLS
#endif

/*
 * The __CONCAT macro is used to concatenate parts of symbol names, e.g.
 * with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo.
 * The __CONCAT macro is a bit tricky -- make sure you don't put spaces
 * in between its arguments.  __CONCAT can also concatenate double-quoted
 * strings produced by the __STRING macro, but this only works with ANSI C.
 */
#if defined(__STDC__) || defined(__cplusplus)
#define	__P(protos)	protos		/* full-blown ANSI C */
#define	__CONCAT(x,y)	x ## y
#define	__STRING(x)	#x

#define	__const		const		/* define reserved names to standard */
#define	__signed	signed
#define	__volatile	volatile
#if defined(__cplusplus)
#define	__inline	inline		/* convert to C++ keyword */
#else
#ifndef __GNUC__
#define	__inline			/* delete GCC keyword */
#endif /* !__GNUC__ */
#endif /* !__cplusplus */

#else	/* !(__STDC__ || __cplusplus) */
#define	__P(protos)	()		/* traditional C preprocessor */
#define	__CONCAT(x,y)	x/**/y
#define	__STRING(x)	"x"

#ifndef __GNUC__
#define	__const				/* delete pseudo-ANSI C keywords */
#define	__inline
#define	__signed
#define	__volatile
#endif	/* !__GNUC__ */

/*
 * In non-ANSI C environments, new programs will want ANSI-only C keywords
 * deleted from the program and old programs will want them left alone.
 * When using a compiler other than gcc, programs using the ANSI C keywords
 * const, inline etc. as normal identifiers should define -DNO_ANSI_KEYWORDS.
 * When using "gcc -traditional", we assume that this is the intent; if
 * __GNUC__ is defined but __STDC__ is not, we leave the new keywords alone.
 */
#ifndef	NO_ANSI_KEYWORDS
#define	const		__const			/* convert ANSI C keywords */
#define	inline		__inline
#define	signed		__signed
#define	volatile	__volatile
#endif /* !NO_ANSI_KEYWORDS */
#endif /* !(__STDC__ || __cplusplus) */

/*
 * GCC1 and some versions of GCC2 declare dead (non-returning) and
 * pure (no side effects) functions using "volatile" and "const";
 * unfortunately, these then cause warnings under "-ansi -pedantic".
 * GCC2 uses a new, peculiar __attribute__((attrs)) style.  All of
 * these work for GNU C++ (modulo a slight glitch in the C++ grammar
 * in the distribution version of 2.5.5).
 */
#if defined(__MWERKS__) && (__MWERKS__ > 0x2400)
	/* newer Metrowerks compilers support __attribute__() */
#elif __GNUC__ > 2 || __GNUC__ == 2 && __GNUC_MINOR__ >= 5
#define	__dead2		__attribute__((__noreturn__))
#define	__pure2		__attribute__((__const__))
#if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 && __GNUC_MINOR__ < 7
#define	__unused	/* no attribute */
#else
#define	__unused	__attribute__((__unused__))
#endif
#else
#define	__attribute__(x)	/* delete __attribute__ if non-gcc or gcc1 */
#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
/* __dead and __pure are depreciated.  Use __dead2 and __pure2 instead */
#define	__dead		__volatile
#define	__pure		__const
#endif
#endif

/* Delete pseudo-keywords wherever they are not available or needed. */
#ifndef __dead
#define	__dead
#define	__pure
#endif
#ifndef __dead2
#define	__dead2
#define	__pure2
#define	__unused
#endif

/*
 * GCC 2.95 provides `__restrict' as an extension to C90 to support the
 * C99-specific `restrict' type qualifier.  We happen to use `__restrict' as
 * a way to define the `restrict' type qualifier without disturbing older
 * software that is unaware of C99 keywords.
 */
#if !(__GNUC__ == 2 && __GNUC_MINOR__ == 95)
#if __STDC_VERSION__ < 199901
#define __restrict
#else
#define __restrict	restrict
#endif
#endif

/*
 * Compiler-dependent macros to declare that functions take printf-like
 * or scanf-like arguments.  They are null except for versions of gcc
 * that are known to support the features properly.  Functions declared
 * with these attributes will cause compilation warnings if there is a
 * mismatch between the format string and subsequent function parameter
 * types.
 */
#if __GNUC__ > 2 || __GNUC__ == 2 && __GNUC_MINOR__ >= 7
#define __printflike(fmtarg, firstvararg) \
		__attribute__((__format__ (__printf__, fmtarg, firstvararg)))
#define __scanflike(fmtarg, firstvararg) \
		__attribute__((__format__ (__scanf__, fmtarg, firstvararg)))
#else
#define __printflike(fmtarg, firstvararg)
#define __scanflike(fmtarg, firstvararg)
#endif

#define __IDSTRING(name,string) static const char name[] __unused = string

#ifndef __COPYRIGHT
#define __COPYRIGHT(s) __IDSTRING(copyright,s)
#endif

#ifndef __RCSID
#define __RCSID(s) __IDSTRING(rcsid,s)
#endif

#ifndef __SCCSID
#define __SCCSID(s) __IDSTRING(sccsid,s)
#endif

#ifndef __PROJECT_VERSION
#define __PROJECT_VERSION(s) __IDSTRING(project_version,s)
#endif

/*
 * The __DARWIN_ALIAS macros is used to do symbol renaming, 
 * they allow old code to use the old symbol thus maintiang binary 
 * compatability while new code can use a new improved version of the 
 * same function.
 *
 * By default newly complied code will actually get the same symbols
 * that the old code did.  Defining any of _APPLE_C_SOURCE, _XOPEN_SOURCE,
 * or _POSIX_C_SOURCE will give you the new symbols.  Defining _XOPEN_SOURCE
 * or _POSIX_C_SOURCE also restricts the avilable symbols to a subset of
 * Apple's APIs.
 *
 * __DARWIN_ALIAS is used by itself if the function signature has not
 * changed, it is used along with a #ifdef check for __DARWIN_UNIX03
 * if the signature has changed.  Because the __LP64__ enviroment
 * only supports UNIX03 sementics it causes __DARWIN_UNIX03 to be
 * defined, but causes __DARWIN_ALIAS to do no symbol mangling.
 */

#if !defined(__DARWIN_UNIX03)
#if defined(_APPLE_C_SOURCE) || defined(_XOPEN_SOURCE) || defined(_POSIX_C_SOURCE) || defined(__LP64__)
#if defined(_NONSTD_SOURCE)
#error "Can't define both _NONSTD_SOURCE and any of _APPLE_C_SOURCE, _XOPEN_SOURCE, _POSIX_C_SOURCE, or __LP64__"
#endif /* _NONSTD_SOURCE */
#define __DARWIN_UNIX03	1
#elif defined(_NONSTD_SOURCE)
#define __DARWIN_UNIX03	0
#else /* default */
#define __DARWIN_UNIX03	0
#endif /* _APPLE_C_SOURCE || _XOPEN_SOURCE || _POSIX_C_SOURCE || __LP64__ */
#endif /* !__DARWIN_UNIX03 */

#if __DARWIN_UNIX03 && !defined(__LP64__)
#define __DARWIN_ALIAS(sym) __asm("_" __STRING(sym) "$UNIX2003")
#else
#define __DARWIN_ALIAS(sym)
#endif


/*
 * POSIX.1 requires that the macros we test be defined before any standard
 * header file is included.  This permits us to convert values for feature
 * testing, as necessary, using only _POSIX_C_SOURCE.
 *
 * Here's a quick run-down of the versions:
 *  defined(_POSIX_SOURCE)		1003.1-1988
 *  _POSIX_C_SOURCE == 1L		1003.1-1990
 *  _POSIX_C_SOURCE == 2L		1003.2-1992 C Language Binding Option
 *  _POSIX_C_SOURCE == 199309L		1003.1b-1993
 *  _POSIX_C_SOURCE == 199506L		1003.1c-1995, 1003.1i-1995,
 *					and the omnibus ISO/IEC 9945-1: 1996
 *  _POSIX_C_SOURCE == 200112L		1003.1-2001
 *
 * In addition, the X/Open Portability Guide, which is now the Single UNIX
 * Specification, defines a feature-test macro which indicates the version of
 * that specification, and which subsumes _POSIX_C_SOURCE.
 */

/* Deal with IEEE Std. 1003.1-1990, in which _POSIX_C_SOURCE == 1L. */
#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 1L
#undef _POSIX_C_SOURCE
#define	_POSIX_C_SOURCE		199009L
#endif

/* Deal with IEEE Std. 1003.2-1992, in which _POSIX_C_SOURCE == 2L. */
#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 2L
#undef _POSIX_C_SOURCE
#define	_POSIX_C_SOURCE		199209L
#endif

/* Deal with various X/Open Portability Guides and Single UNIX Spec. */
#ifdef _XOPEN_SOURCE
#if _XOPEN_SOURCE - 0L >= 600L
#undef _POSIX_C_SOURCE
#define	_POSIX_C_SOURCE		200112L
#elif _XOPEN_SOURCE - 0L >= 500L
#undef _POSIX_C_SOURCE
#define	_POSIX_C_SOURCE		199506L
#endif
#endif

/*
 * Deal with all versions of POSIX.  The ordering relative to the tests above is
 * important.
 */
#if defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE)
#define _POSIX_C_SOURCE         198808L
#endif

/*
 * long long is not supported in c89 (__STRICT_ANSI__), but g++ -ansi and
 * c99 still want long longs.  While not perfect, we allow long longs for
 * g++.
 */
#define	__DARWIN_NO_LONG_LONG	(defined(__STRICT_ANSI__) \
				&& (__STDC_VERSION__-0 < 199901L) \
				&& !defined(__GNUG__))

/*
 * Long double compatibility macro allow selecting variant symbols based
 * on the old (compatible) 64-bit long doubles, or the new 128-bit
 * long doubles.  This applies only to ppc; i386 already has long double
 * support, while ppc64 doesn't have any backwards history.
 */
#if defined(__ppc__)
#  if defined(__LDBL_MANT_DIG__) && defined(__DBL_MANT_DIG__) && \
	__LDBL_MANT_DIG__ > __DBL_MANT_DIG__
#    if __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__-0 < 1040
#      define	__DARWIN_LDBL_COMPAT(x)	__asm("_" __STRING(x) "$LDBLStub")
#    else
#      define	__DARWIN_LDBL_COMPAT(x)	__asm("_" __STRING(x) "$LDBL128")
#    endif
#    define	__DARWIN_LDBL_COMPAT2(x) __asm("_" __STRING(x) "$LDBL128")
#    define	__DARWIN_LONG_DOUBLE_IS_DOUBLE	0
#  else
#   define	__DARWIN_LDBL_COMPAT(x) /* nothing */
#   define	__DARWIN_LDBL_COMPAT2(x) /* nothing */
#   define	__DARWIN_LONG_DOUBLE_IS_DOUBLE	1
#  endif
#elif defined(__i386__) || defined(__ppc64__)
#  define	__DARWIN_LDBL_COMPAT(x)	/* nothing */
#  define	__DARWIN_LDBL_COMPAT2(x) /* nothing */
#  define	__DARWIN_LONG_DOUBLE_IS_DOUBLE	0
#else
#  error Unknown architecture
#endif

/*
 * Structure alignment control macros.  These specify how certain
 * shared structures should be aligned.  Some may need backward
 * compatible legacy (POWER) alignment, while others may need
 * forward compatible (NATURAL) alignment.
 */
#if !defined(__DARWIN_ALIGN_POWER)
#if defined(__ppc64__)
#define __DARWIN_ALIGN_POWER 1
#else
#define __DARWIN_ALIGN_POWER 0
#endif
#endif /* __DARWIN_ALIGN_POWER */

#if !defined(__DARWIN_ALIGN_NATURAL)
#if defined(__ppc__) && defined(KERNEL)
#define __DARWIN_ALIGN_NATURAL 1
#else
#define __DARWIN_ALIGN_NATURAL 0
#endif
#endif /* __DARWIN_ALIGN_NATURAL */

#endif /* !_CDEFS_H_ */
Commit	Line	Data
1c79356b	1	/*
91447636	2	* Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
1c79356b A	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
37839358 A	6	* The contents of this file constitute Original Code as defined in and
	7	* are subject to the Apple Public Source License Version 1.1 (the
	8	* "License"). You may not use this file except in compliance with the
	9	* License. Please obtain a copy of the License at
	10	* http://www.apple.com/publicsource and read it before using this file.
1c79356b	11	*
37839358 A	12	* This Original Code and all software distributed under the License are
37839358 A	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
1c79356b A	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
1c79356b A	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
37839358 A	16	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	17	* License for the specific language governing rights and limitations
	18	* under the License.
1c79356b A	19	*
	20	* @APPLE_LICENSE_HEADER_END@
	21	*/
	22	/* Copyright 1995 NeXT Computer, Inc. All rights reserved. */
	23	/*
	24	* Copyright (c) 1991, 1993
	25	* The Regents of the University of California. All rights reserved.
	26	*
	27	* This code is derived from software contributed to Berkeley by
	28	* Berkeley Software Design, Inc.
	29	*
	30	* Redistribution and use in source and binary forms, with or without
	31	* modification, are permitted provided that the following conditions
	32	* are met:
	33	* 1. Redistributions of source code must retain the above copyright
	34	* notice, this list of conditions and the following disclaimer.
	35	* 2. Redistributions in binary form must reproduce the above copyright
	36	* notice, this list of conditions and the following disclaimer in the
	37	* documentation and/or other materials provided with the distribution.
	38	* 3. All advertising materials mentioning features or use of this software
	39	* must display the following acknowledgement:
	40	* This product includes software developed by the University of
	41	* California, Berkeley and its contributors.
	42	* 4. Neither the name of the University nor the names of its contributors
	43	* may be used to endorse or promote products derived from this software
	44	* without specific prior written permission.
	45	*
	46	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	47	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	48	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	49	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	50	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	51	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	52	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	53	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	54	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	55	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	56	* SUCH DAMAGE.
	57	*
	58	* @(#)cdefs.h 8.8 (Berkeley) 1/9/95
	59	*/
	60
	61	#ifndef _CDEFS_H_
	62	#define _CDEFS_H_
	63
	64	#if defined(__cplusplus)
	65	#define __BEGIN_DECLS extern "C" {
	66	#define __END_DECLS }
	67	#else
	68	#define __BEGIN_DECLS
	69	#define __END_DECLS
	70	#endif
	71
	72	/*
	73	* The __CONCAT macro is used to concatenate parts of symbol names, e.g.
	74	* with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo.
	75	* The __CONCAT macro is a bit tricky -- make sure you don't put spaces
	76	* in between its arguments. __CONCAT can also concatenate double-quoted
	77	* strings produced by the __STRING macro, but this only works with ANSI C.
	78	*/
	79	#if defined(__STDC__) \|\| defined(__cplusplus)
	80	#define __P(protos) protos /* full-blown ANSI C */
	81	#define __CONCAT(x,y) x ## y
	82	#define __STRING(x) #x
83
84	#define __const const /* define reserved names to standard */
85	#define __signed signed
86	#define __volatile volatile
87	#if defined(__cplusplus)
88	#define __inline inline /* convert to C++ keyword */
89	#else
90	#ifndef __GNUC__
91	#define __inline /* delete GCC keyword */
92	#endif /* !__GNUC__ */
93	#endif /* !__cplusplus */
94
95	#else /* !(__STDC__ \|\| __cplusplus) */
96	#define __P(protos) () /* traditional C preprocessor */
97	#define __CONCAT(x,y) x/**/y
98	#define __STRING(x) "x"
99
100	#ifndef __GNUC__
101	#define __const /* delete pseudo-ANSI C keywords */
102	#define __inline
103	#define __signed
104	#define __volatile
105	#endif /* !__GNUC__ */
106
107	/*
108	* In non-ANSI C environments, new programs will want ANSI-only C keywords
109	* deleted from the program and old programs will want them left alone.
110	* When using a compiler other than gcc, programs using the ANSI C keywords
111	* const, inline etc. as normal identifiers should define -DNO_ANSI_KEYWORDS.
112	* When using "gcc -traditional", we assume that this is the intent; if
113	* __GNUC__ is defined but __STDC__ is not, we leave the new keywords alone.
114	*/
115	#ifndef NO_ANSI_KEYWORDS
116	#define const __const /* convert ANSI C keywords */
117	#define inline __inline
118	#define signed __signed
119	#define volatile __volatile
120	#endif /* !NO_ANSI_KEYWORDS */
121	#endif /* !(__STDC__ \|\| __cplusplus) */
122
123	/*
124	* GCC1 and some versions of GCC2 declare dead (non-returning) and
125	* pure (no side effects) functions using "volatile" and "const";
126	* unfortunately, these then cause warnings under "-ansi -pedantic".
127	* GCC2 uses a new, peculiar __attribute__((attrs)) style. All of
128	* these work for GNU C++ (modulo a slight glitch in the C++ grammar
129	* in the distribution version of 2.5.5).
130	*/
0b4e3aa0 A	131	#if defined(__MWERKS__) && (__MWERKS__ > 0x2400)
0b4e3aa0 A	132	/* newer Metrowerks compilers support __attribute__() */
55e303ae A	133	#elif __GNUC__ > 2 \|\| __GNUC__ == 2 && __GNUC_MINOR__ >= 5
	134	#define __dead2 __attribute__((__noreturn__))
	135	#define __pure2 __attribute__((__const__))
	136	#if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 && __GNUC_MINOR__ < 7
	137	#define __unused /* no attribute */
	138	#else
	139	#define __unused __attribute__((__unused__))
	140	#endif
	141	#else
1c79356b A	142	#define __attribute__(x) /* delete __attribute__ if non-gcc or gcc1 */
1c79356b A	143	#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
55e303ae	144	/* __dead and __pure are depreciated. Use __dead2 and __pure2 instead */
1c79356b A	145	#define __dead __volatile
	146	#define __pure __const
	147	#endif
	148	#endif
	149
	150	/* Delete pseudo-keywords wherever they are not available or needed. */
	151	#ifndef __dead
	152	#define __dead
	153	#define __pure
	154	#endif
55e303ae A	155	#ifndef __dead2
	156	#define __dead2
	157	#define __pure2
	158	#define __unused
	159	#endif
1c79356b	160
91447636 A	161	/*
	162	* GCC 2.95 provides `__restrict' as an extension to C90 to support the
	163	* C99-specific `restrict' type qualifier. We happen to use `__restrict' as
	164	* a way to define the `restrict' type qualifier without disturbing older
	165	* software that is unaware of C99 keywords.
	166	*/
	167	#if !(__GNUC__ == 2 && __GNUC_MINOR__ == 95)
	168	#if __STDC_VERSION__ < 199901
	169	#define __restrict
	170	#else
	171	#define __restrict restrict
	172	#endif
	173	#endif
	174
	175	/*
	176	* Compiler-dependent macros to declare that functions take printf-like
	177	* or scanf-like arguments. They are null except for versions of gcc
	178	* that are known to support the features properly. Functions declared
	179	* with these attributes will cause compilation warnings if there is a
	180	* mismatch between the format string and subsequent function parameter
	181	* types.
	182	*/
	183	#if __GNUC__ > 2 \|\| __GNUC__ == 2 && __GNUC_MINOR__ >= 7
	184	#define __printflike(fmtarg, firstvararg) \
	185	__attribute__((__format__ (__printf__, fmtarg, firstvararg)))
	186	#define __scanflike(fmtarg, firstvararg) \
	187	__attribute__((__format__ (__scanf__, fmtarg, firstvararg)))
	188	#else
	189	#define __printflike(fmtarg, firstvararg)
	190	#define __scanflike(fmtarg, firstvararg)
	191	#endif
	192
55e303ae	193	#define __IDSTRING(name,string) static const char name[] __unused = string
1c79356b A	194
	195	#ifndef __COPYRIGHT
	196	#define __COPYRIGHT(s) __IDSTRING(copyright,s)
	197	#endif
	198
	199	#ifndef __RCSID
	200	#define __RCSID(s) __IDSTRING(rcsid,s)
	201	#endif
	202
	203	#ifndef __SCCSID
	204	#define __SCCSID(s) __IDSTRING(sccsid,s)
	205	#endif
	206
	207	#ifndef __PROJECT_VERSION
	208	#define __PROJECT_VERSION(s) __IDSTRING(project_version,s)
	209	#endif
	210
91447636 A	211	/*
	212	* The __DARWIN_ALIAS macros is used to do symbol renaming,
	213	* they allow old code to use the old symbol thus maintiang binary
	214	* compatability while new code can use a new improved version of the
	215	* same function.
	216	*
	217	* By default newly complied code will actually get the same symbols
	218	* that the old code did. Defining any of _APPLE_C_SOURCE, _XOPEN_SOURCE,
	219	* or _POSIX_C_SOURCE will give you the new symbols. Defining _XOPEN_SOURCE
	220	* or _POSIX_C_SOURCE also restricts the avilable symbols to a subset of
	221	* Apple's APIs.
	222	*
	223	* __DARWIN_ALIAS is used by itself if the function signature has not
	224	* changed, it is used along with a #ifdef check for __DARWIN_UNIX03
	225	* if the signature has changed. Because the __LP64__ enviroment
	226	* only supports UNIX03 sementics it causes __DARWIN_UNIX03 to be
	227	* defined, but causes __DARWIN_ALIAS to do no symbol mangling.
	228	*/
	229
	230	#if !defined(__DARWIN_UNIX03)
	231	#if defined(_APPLE_C_SOURCE) \|\| defined(_XOPEN_SOURCE) \|\| defined(_POSIX_C_SOURCE) \|\| defined(__LP64__)
	232	#if defined(_NONSTD_SOURCE)
	233	#error "Can't define both _NONSTD_SOURCE and any of _APPLE_C_SOURCE, _XOPEN_SOURCE, _POSIX_C_SOURCE, or __LP64__"
	234	#endif /* _NONSTD_SOURCE */
	235	#define __DARWIN_UNIX03 1
	236	#elif defined(_NONSTD_SOURCE)
	237	#define __DARWIN_UNIX03 0
	238	#else /* default */
	239	#define __DARWIN_UNIX03 0
	240	#endif /* _APPLE_C_SOURCE \|\| _XOPEN_SOURCE \|\| _POSIX_C_SOURCE \|\| __LP64__ */
	241	#endif /* !__DARWIN_UNIX03 */
	242
	243	#if __DARWIN_UNIX03 && !defined(__LP64__)
	244	#define __DARWIN_ALIAS(sym) __asm("_" __STRING(sym) "$UNIX2003")
	245	#else
	246	#define __DARWIN_ALIAS(sym)
	247	#endif
	248
	249
	250	/*
	251	* POSIX.1 requires that the macros we test be defined before any standard
	252	* header file is included. This permits us to convert values for feature
	253	* testing, as necessary, using only _POSIX_C_SOURCE.
	254	*
	255	* Here's a quick run-down of the versions:
	256	* defined(_POSIX_SOURCE) 1003.1-1988
	257	* _POSIX_C_SOURCE == 1L 1003.1-1990
	258	* _POSIX_C_SOURCE == 2L 1003.2-1992 C Language Binding Option
	259	* _POSIX_C_SOURCE == 199309L 1003.1b-1993
	260	* _POSIX_C_SOURCE == 199506L 1003.1c-1995, 1003.1i-1995,
	261	* and the omnibus ISO/IEC 9945-1: 1996
	262	* _POSIX_C_SOURCE == 200112L 1003.1-2001
	263	*
	264	* In addition, the X/Open Portability Guide, which is now the Single UNIX
	265	* Specification, defines a feature-test macro which indicates the version of
	266	* that specification, and which subsumes _POSIX_C_SOURCE.
	267	*/
	268
	269	/* Deal with IEEE Std. 1003.1-1990, in which _POSIX_C_SOURCE == 1L. */
	270	#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 1L
	271	#undef _POSIX_C_SOURCE
	272	#define _POSIX_C_SOURCE 199009L
	273	#endif
	274
275	/* Deal with IEEE Std. 1003.2-1992, in which _POSIX_C_SOURCE == 2L. */
276	#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 2L
277	#undef _POSIX_C_SOURCE
278	#define _POSIX_C_SOURCE 199209L
279	#endif
280
281	/* Deal with various X/Open Portability Guides and Single UNIX Spec. */
282	#ifdef _XOPEN_SOURCE
283	#if _XOPEN_SOURCE - 0L >= 600L
284	#undef _POSIX_C_SOURCE
285	#define _POSIX_C_SOURCE 200112L
286	#elif _XOPEN_SOURCE - 0L >= 500L
287	#undef _POSIX_C_SOURCE
288	#define _POSIX_C_SOURCE 199506L
289	#endif
290	#endif
291
292	/*
293	* Deal with all versions of POSIX. The ordering relative to the tests above is
294	* important.
295	*/
296	#if defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE)
297	#define _POSIX_C_SOURCE 198808L
298	#endif
299
300	/*
301	* long long is not supported in c89 (__STRICT_ANSI__), but g++ -ansi and
302	* c99 still want long longs. While not perfect, we allow long longs for
303	* g++.
304	*/
305	#define __DARWIN_NO_LONG_LONG (defined(__STRICT_ANSI__) \
306	&& (__STDC_VERSION__-0 < 199901L) \
307	&& !defined(__GNUG__))
308
309	/*
310	* Long double compatibility macro allow selecting variant symbols based
311	* on the old (compatible) 64-bit long doubles, or the new 128-bit
312	* long doubles. This applies only to ppc; i386 already has long double
313	* support, while ppc64 doesn't have any backwards history.
314	*/
315	#if defined(__ppc__)
316	# if defined(__LDBL_MANT_DIG__) && defined(__DBL_MANT_DIG__) && \
317	__LDBL_MANT_DIG__ > __DBL_MANT_DIG__
318	# if __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__-0 < 1040
319	# define __DARWIN_LDBL_COMPAT(x) __asm("_" __STRING(x) "$LDBLStub")
320	# else
321	# define __DARWIN_LDBL_COMPAT(x) __asm("_" __STRING(x) "$LDBL128")
322	# endif
323	# define __DARWIN_LDBL_COMPAT2(x) __asm("_" __STRING(x) "$LDBL128")
324	# define __DARWIN_LONG_DOUBLE_IS_DOUBLE 0
325	# else
326	# define __DARWIN_LDBL_COMPAT(x) /* nothing */
327	# define __DARWIN_LDBL_COMPAT2(x) /* nothing */
328	# define __DARWIN_LONG_DOUBLE_IS_DOUBLE 1
329	# endif
330	#elif defined(__i386__) \|\| defined(__ppc64__)
331	# define __DARWIN_LDBL_COMPAT(x) /* nothing */
332	# define __DARWIN_LDBL_COMPAT2(x) /* nothing */
333	# define __DARWIN_LONG_DOUBLE_IS_DOUBLE 0
334	#else
335	# error Unknown architecture
336	#endif
337
338	/*
339	* Structure alignment control macros. These specify how certain
340	* shared structures should be aligned. Some may need backward
341	* compatible legacy (POWER) alignment, while others may need
342	* forward compatible (NATURAL) alignment.
343	*/
344	#if !defined(__DARWIN_ALIGN_POWER)
345	#if defined(__ppc64__)
346	#define __DARWIN_ALIGN_POWER 1
347	#else
348	#define __DARWIN_ALIGN_POWER 0
349	#endif
350	#endif /* __DARWIN_ALIGN_POWER */
351
352	#if !defined(__DARWIN_ALIGN_NATURAL)
353	#if defined(__ppc__) && defined(KERNEL)
354	#define __DARWIN_ALIGN_NATURAL 1
355	#else
356	#define __DARWIN_ALIGN_NATURAL 0
357	#endif
358	#endif /* __DARWIN_ALIGN_NATURAL */
359
1c79356b	360	#endif /* !_CDEFS_H_ */