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/*-
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*
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* Copyright (c) 1991, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Berkeley Software Design, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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* © Portions Copyright (c) 2005-2010 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
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* @(#)cdefs.h 8.8 (Berkeley) 1/9/95
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* $FreeBSD: src/sys/sys/cdefs.h,v 1.88.2.1 2005/10/09 07:48:48 netchild Exp $
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*/
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#ifndef _SYS_CDEFS_H_
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#define _SYS_CDEFS_H_
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#ifdef __SYMBIAN32__
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#include <_ansi.h>
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#endif
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#if defined(__cplusplus)
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#define __BEGIN_DECLS extern "C" {
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#define __END_DECLS }
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#else
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#define __BEGIN_DECLS
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#define __END_DECLS
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#endif
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/*
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* This code has been put in place to help reduce the addition of
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* compiler specific defines in FreeBSD code. It helps to aid in
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* having a compiler-agnostic source tree.
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*/
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#if defined(__GNUC__) || defined(__INTEL_COMPILER)
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#if __GNUC__ >= 3 || defined(__INTEL_COMPILER)
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#define __GNUCLIKE_ASM 3
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#define __GNUCLIKE_MATH_BUILTIN_CONSTANTS
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#else
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#define __GNUCLIKE_ASM 2
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#endif
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#define __GNUCLIKE___TYPEOF 1
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#define __GNUCLIKE___OFFSETOF 1
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#define __GNUCLIKE___SECTION 1
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#define __GNUCLIKE_ATTRIBUTE_MODE_DI 1
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#ifndef __INTEL_COMPILER
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# define __GNUCLIKE_CTOR_SECTION_HANDLING 1
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#endif
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#define __GNUCLIKE_BUILTIN_CONSTANT_P 1
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# if defined(__INTEL_COMPILER) && defined(__cplusplus) \
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&& __INTEL_COMPILER < 800
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# undef __GNUCLIKE_BUILTIN_CONSTANT_P
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# endif
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#if (__GNUC_MINOR__ > 95 || __GNUC__ >= 3) && !defined(__INTEL_COMPILER)
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# define __GNUCLIKE_BUILTIN_VARARGS 1
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# define __GNUCLIKE_BUILTIN_STDARG 1
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# define __GNUCLIKE_BUILTIN_VAALIST 1
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#endif
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#if defined(__GNUC__)
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# define __GNUC_VA_LIST_COMPATIBILITY 1
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#endif
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#ifndef __INTEL_COMPILER
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# define __GNUCLIKE_BUILTIN_NEXT_ARG 1
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# define __GNUCLIKE_MATH_BUILTIN_RELOPS
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#endif
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#define __GNUCLIKE_BUILTIN_MEMCPY 1
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/* XXX: if __GNUC__ >= 2: not tested everywhere originally, where replaced */
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#define __CC_SUPPORTS_INLINE 1
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#define __CC_SUPPORTS___INLINE 1
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#define __CC_SUPPORTS___INLINE__ 1
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#define __CC_SUPPORTS___FUNC__ 1
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#define __CC_SUPPORTS_WARNING 1
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#define __CC_SUPPORTS_VARADIC_XXX 1 /* see varargs.h */
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#define __CC_SUPPORTS_DYNAMIC_ARRAY_INIT 1
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/* XXX: sys/dev/mpt/mpilib/mpi_type.h uses it, someone should review it */
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#define __CC_INT_IS_32BIT 1
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#endif /* __GNUC__ || __INTEL_COMPILER */
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/*
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* Macro to test if we're using a specific version of gcc or later.
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*/
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#if defined(__GNUC__) && !defined(__INTEL_COMPILER)
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#define __GNUC_PREREQ__(ma, mi) \
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(__GNUC__ > (ma) || __GNUC__ == (ma) && __GNUC_MINOR__ >= (mi))
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#else
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#define __GNUC_PREREQ__(ma, mi) 0
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#endif
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/*
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* The __CONCAT macro is used to concatenate parts of symbol names, e.g.
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* with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo.
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* The __CONCAT macro is a bit tricky to use if it must work in non-ANSI
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* mode -- there must be no spaces between its arguments, and for nested
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* __CONCAT's, all the __CONCAT's must be at the left. __CONCAT can also
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* concatenate double-quoted strings produced by the __STRING macro, but
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* this only works with ANSI C.
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*
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* __XSTRING is like __STRING, but it expands any macros in its argument
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* first. It is only available with ANSI C.
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*/
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#if defined(__STDC__) || defined(__cplusplus)
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#define __P(protos) protos /* full-blown ANSI C */
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#define __CONCAT1(x,y) x ## y
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#define __CONCAT(x,y) __CONCAT1(x,y)
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#define __STRING(x) #x /* stringify without expanding x */
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#define __XSTRING(x) __STRING(x) /* expand x, then stringify */
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#define __const const /* define reserved names to standard */
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#define __signed signed
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#define __volatile volatile
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#if defined(__cplusplus)
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#define __inline inline /* convert to C++ keyword */
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#else
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#if !(defined(__CC_SUPPORTS___INLINE))
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#define __inline /* delete GCC keyword */
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#endif /* ! __CC_SUPPORTS___INLINE */
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#endif /* !__cplusplus */
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#else /* !(__STDC__ || __cplusplus) */
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#define __P(protos) () /* traditional C preprocessor */
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#define __CONCAT(x,y) x/**/y
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#define __STRING(x) "x"
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#if !defined(__CC_SUPPORTS___INLINE)
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#define __const /* delete pseudo-ANSI C keywords */
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#define __inline
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#define __signed
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#define __volatile
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/*
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* In non-ANSI C environments, new programs will want ANSI-only C keywords
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* deleted from the program and old programs will want them left alone.
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* When using a compiler other than gcc, programs using the ANSI C keywords
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* const, inline etc. as normal identifiers should define -DNO_ANSI_KEYWORDS.
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* When using "gcc -traditional", we assume that this is the intent; if
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* __GNUC__ is defined but __STDC__ is not, we leave the new keywords alone.
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*/
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#ifndef NO_ANSI_KEYWORDS
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#define const /* delete ANSI C keywords */
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#define inline
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#define signed
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#define volatile
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#endif /* !NO_ANSI_KEYWORDS */
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#endif /* !__CC_SUPPORTS___INLINE */
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#endif /* !(__STDC__ || __cplusplus) */
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/*
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* Compiler-dependent macros to help declare dead (non-returning) and
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* pure (no side effects) functions, and unused variables. They are
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* null except for versions of gcc that are known to support the features
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* properly (old versions of gcc-2 supported the dead and pure features
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* in a different (wrong) way). If we do not provide an implementation
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* for a given compiler, let the compile fail if it is told to use
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* a feature that we cannot live without.
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*/
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#ifdef lint
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#define __dead2
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#define __pure2
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#define __unused
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#define __packed
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#define __aligned(x)
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#define __section(x)
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#else
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#if !__GNUC_PREREQ__(2, 5) && !defined(__INTEL_COMPILER)
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#define __dead2
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#define __pure2
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#define __unused
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#endif
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#if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 && __GNUC_MINOR__ < 7 && !defined(__INTEL_COMPILER)
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#define __dead2 __attribute__((__noreturn__))
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#define __pure2 __attribute__((__const__))
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#define __unused
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/* XXX Find out what to do for __packed, __aligned and __section */
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#endif
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#if __GNUC_PREREQ__(2, 7)
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#define __dead2 __attribute__((__noreturn__))
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#define __pure2 __attribute__((__const__))
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#define __unused __attribute__((__unused__))
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#define __used __attribute__((__used__))
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#define __packed __attribute__((__packed__))
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#define __aligned(x) __attribute__((__aligned__(x)))
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#define __section(x) __attribute__((__section__(x)))
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#endif
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#if defined(__INTEL_COMPILER)
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#define __dead2 __attribute__((__noreturn__))
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#define __pure2 __attribute__((__const__))
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#define __unused __attribute__((__unused__))
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#define __used __attribute__((__used__))
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#define __packed __attribute__((__packed__))
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#define __aligned(x) __attribute__((__aligned__(x)))
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#define __section(x) __attribute__((__section__(x)))
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#endif
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#endif
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#if __GNUC_PREREQ__(2, 96)
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#define __pure __attribute__((__pure__))
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#else
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#define __pure
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#endif
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#if __GNUC_PREREQ__(3, 1) || (defined(__INTEL_COMPILER) && __INTEL_COMPILER >= 800)
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#define __always_inline __attribute__((__always_inline__))
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#else
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#define __always_inline
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#endif
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#if __GNUC_PREREQ__(3, 3)
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#define __nonnull(x) __attribute__((__nonnull__(x)))
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#else
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#define __nonnull(x)
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#endif
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/* XXX: should use `#if __STDC_VERSION__ < 199901'. */
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#if __STDC_VERSION__ < 199901
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#if !__GNUC_PREREQ__(2, 7) && !defined(__INTEL_COMPILER)
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#define __func__ ""
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#endif
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#endif
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#if (defined(__INTEL_COMPILER) || (defined(__GNUC__) && __GNUC__ >= 2)) && !defined(__STRICT_ANSI__) || __STDC_VERSION__ >= 199901
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#ifdef __SYMBIAN32__
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#ifndef __LONG_LONG_SUPPORTED
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#define __LONG_LONG_SUPPORTED
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#endif /* __LONG_LONG_SUPPORTED */
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#else
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#define __LONG_LONG_SUPPORTED
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#endif /* __SYMBIAN32__ */
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#endif
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#ifdef __SYMBIAN32__
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#if ((defined(__ARMCC__) && (__ARMCC_VERSION > 220000) ) || (defined(__WINSCW__)))
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#ifndef __LONG_LONG_SUPPORTED
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#define __LONG_LONG_SUPPORTED
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#endif /* __LONG_LONG_SUPPORTED */
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#endif
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#endif /*__SYMBIAN32__*/
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/*
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williamr@2
|
276 |
* GCC 2.95 provides `__restrict' as an extension to C90 to support the
|
williamr@2
|
277 |
* C99-specific `restrict' type qualifier. We happen to use `__restrict' as
|
williamr@2
|
278 |
* a way to define the `restrict' type qualifier without disturbing older
|
williamr@2
|
279 |
* software that is unaware of C99 keywords.
|
williamr@2
|
280 |
*/
|
williamr@2
|
281 |
#if !(__GNUC__ == 2 && __GNUC_MINOR__ == 95)
|
williamr@2
|
282 |
#if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 199901
|
williamr@2
|
283 |
#define __restrict
|
williamr@2
|
284 |
#else
|
williamr@2
|
285 |
#define __restrict restrict
|
williamr@2
|
286 |
#endif
|
williamr@2
|
287 |
#endif
|
williamr@2
|
288 |
|
williamr@2
|
289 |
/*
|
williamr@2
|
290 |
* GNU C version 2.96 adds explicit branch prediction so that
|
williamr@2
|
291 |
* the CPU back-end can hint the processor and also so that
|
williamr@2
|
292 |
* code blocks can be reordered such that the predicted path
|
williamr@2
|
293 |
* sees a more linear flow, thus improving cache behavior, etc.
|
williamr@2
|
294 |
*
|
williamr@2
|
295 |
* The following two macros provide us with a way to utilize this
|
williamr@2
|
296 |
* compiler feature. Use __predict_true() if you expect the expression
|
williamr@2
|
297 |
* to evaluate to true, and __predict_false() if you expect the
|
williamr@2
|
298 |
* expression to evaluate to false.
|
williamr@2
|
299 |
*
|
williamr@2
|
300 |
* A few notes about usage:
|
williamr@2
|
301 |
*
|
williamr@2
|
302 |
* * Generally, __predict_false() error condition checks (unless
|
williamr@2
|
303 |
* you have some _strong_ reason to do otherwise, in which case
|
williamr@2
|
304 |
* document it), and/or __predict_true() `no-error' condition
|
williamr@2
|
305 |
* checks, assuming you want to optimize for the no-error case.
|
williamr@2
|
306 |
*
|
williamr@2
|
307 |
* * Other than that, if you don't know the likelihood of a test
|
williamr@2
|
308 |
* succeeding from empirical or other `hard' evidence, don't
|
williamr@2
|
309 |
* make predictions.
|
williamr@2
|
310 |
*
|
williamr@2
|
311 |
* * These are meant to be used in places that are run `a lot'.
|
williamr@2
|
312 |
* It is wasteful to make predictions in code that is run
|
williamr@2
|
313 |
* seldomly (e.g. at subsystem initialization time) as the
|
williamr@2
|
314 |
* basic block reordering that this affects can often generate
|
williamr@2
|
315 |
* larger code.
|
williamr@2
|
316 |
*/
|
williamr@2
|
317 |
#if __GNUC_PREREQ__(2, 96)
|
williamr@2
|
318 |
#define __predict_true(exp) __builtin_expect((exp), 1)
|
williamr@2
|
319 |
#define __predict_false(exp) __builtin_expect((exp), 0)
|
williamr@2
|
320 |
#else
|
williamr@2
|
321 |
#define __predict_true(exp) (exp)
|
williamr@2
|
322 |
#define __predict_false(exp) (exp)
|
williamr@2
|
323 |
#endif
|
williamr@2
|
324 |
|
williamr@2
|
325 |
/*
|
williamr@2
|
326 |
* We define this here since <stddef.h>, <sys/queue.h>, and <sys/types.h>
|
williamr@2
|
327 |
* require it.
|
williamr@2
|
328 |
*/
|
williamr@4
|
329 |
#if !defined(__cplusplus)
|
williamr@2
|
330 |
#define __offsetof(type, field) ((size_t)(&((type *)0)->field))
|
williamr@2
|
331 |
#else
|
williamr@4
|
332 |
#if defined(__GNUC__)
|
williamr@4
|
333 |
#if(__GNUC__ > 3)
|
williamr@2
|
334 |
#define __offsetof(type, field) \
|
williamr@4
|
335 |
(__builtin_offsetof (type,field))
|
williamr@4
|
336 |
#else
|
williamr@4
|
337 |
#define __offsetof(type, field) \
|
williamr@4
|
338 |
(__offsetof__ (type,field))
|
williamr@2
|
339 |
#endif
|
williamr@4
|
340 |
#else
|
williamr@4
|
341 |
#define __offsetof(type, field) (reinterpret_cast <size_t> \
|
williamr@4
|
342 |
(&reinterpret_cast <const volatile char &> \
|
williamr@4
|
343 |
(static_cast<type *> (0)->field)))
|
williamr@4
|
344 |
#endif
|
williamr@4
|
345 |
#endif
|
williamr@4
|
346 |
|
williamr@2
|
347 |
#define __rangeof(type, start, end) \
|
williamr@2
|
348 |
(__offsetof(type, end) - __offsetof(type, start))
|
williamr@2
|
349 |
|
williamr@2
|
350 |
/*
|
williamr@2
|
351 |
* Compiler-dependent macros to declare that functions take printf-like
|
williamr@2
|
352 |
* or scanf-like arguments. They are null except for versions of gcc
|
williamr@2
|
353 |
* that are known to support the features properly (old versions of gcc-2
|
williamr@2
|
354 |
* didn't permit keeping the keywords out of the application namespace).
|
williamr@2
|
355 |
*/
|
williamr@2
|
356 |
#if !__GNUC_PREREQ__(2, 7) && !defined(__INTEL_COMPILER)
|
williamr@2
|
357 |
#define __printflike(fmtarg, firstvararg)
|
williamr@2
|
358 |
#define __scanflike(fmtarg, firstvararg)
|
williamr@2
|
359 |
#else
|
williamr@2
|
360 |
#define __printflike(fmtarg, firstvararg) \
|
williamr@2
|
361 |
__attribute__((__format__ (__printf__, fmtarg, firstvararg)))
|
williamr@2
|
362 |
#define __scanflike(fmtarg, firstvararg) \
|
williamr@2
|
363 |
__attribute__((__format__ (__scanf__, fmtarg, firstvararg)))
|
williamr@2
|
364 |
#endif
|
williamr@2
|
365 |
|
williamr@2
|
366 |
/* Compiler-dependent macros that rely on FreeBSD-specific extensions. */
|
williamr@2
|
367 |
#if __FreeBSD_cc_version >= 300001 && defined(__GNUC__) && !defined(__INTEL_COMPILER)
|
williamr@2
|
368 |
#define __printf0like(fmtarg, firstvararg) \
|
williamr@2
|
369 |
__attribute__((__format__ (__printf0__, fmtarg, firstvararg)))
|
williamr@2
|
370 |
#else
|
williamr@2
|
371 |
#define __printf0like(fmtarg, firstvararg)
|
williamr@2
|
372 |
#endif
|
williamr@2
|
373 |
|
williamr@2
|
374 |
#if defined(__GNUC__) || defined(__INTEL_COMPILER)
|
williamr@2
|
375 |
#ifndef __INTEL_COMPILER
|
williamr@2
|
376 |
#define __strong_reference(sym,aliassym) \
|
williamr@2
|
377 |
extern __typeof (sym) aliassym __attribute__ ((__alias__ (#sym)));
|
williamr@2
|
378 |
#endif
|
williamr@2
|
379 |
#ifdef __STDC__
|
williamr@2
|
380 |
#define __weak_reference(sym,alias) \
|
williamr@2
|
381 |
__asm__(".weak " #alias); \
|
williamr@2
|
382 |
__asm__(".equ " #alias ", " #sym)
|
williamr@2
|
383 |
#define __warn_references(sym,msg) \
|
williamr@2
|
384 |
__asm__(".section .gnu.warning." #sym); \
|
williamr@2
|
385 |
__asm__(".asciz \"" msg "\""); \
|
williamr@2
|
386 |
__asm__(".previous")
|
williamr@2
|
387 |
#else
|
williamr@2
|
388 |
#define __weak_reference(sym,alias) \
|
williamr@2
|
389 |
__asm__(".weak alias"); \
|
williamr@2
|
390 |
__asm__(".equ alias, sym")
|
williamr@2
|
391 |
#define __warn_references(sym,msg) \
|
williamr@2
|
392 |
__asm__(".section .gnu.warning.sym"); \
|
williamr@2
|
393 |
__asm__(".asciz \"msg\""); \
|
williamr@2
|
394 |
__asm__(".previous")
|
williamr@2
|
395 |
#endif /* __STDC__ */
|
williamr@2
|
396 |
#endif /* __GNUC__ || __INTEL_COMPILER */
|
williamr@2
|
397 |
|
williamr@2
|
398 |
#if defined(__GNUC__) || defined(__INTEL_COMPILER)
|
williamr@2
|
399 |
#define __IDSTRING(name,string) __asm__(".ident\t\"" string "\"")
|
williamr@2
|
400 |
#else
|
williamr@2
|
401 |
/*
|
williamr@2
|
402 |
* The following definition might not work well if used in header files,
|
williamr@2
|
403 |
* but it should be better than nothing. If you want a "do nothing"
|
williamr@2
|
404 |
* version, then it should generate some harmless declaration, such as:
|
williamr@2
|
405 |
* #define __IDSTRING(name,string) struct __hack
|
williamr@2
|
406 |
*/
|
williamr@2
|
407 |
#define __IDSTRING(name,string) static const char name[] __unused = string
|
williamr@2
|
408 |
#endif
|
williamr@2
|
409 |
|
williamr@2
|
410 |
/*
|
williamr@2
|
411 |
* Embed the rcs id of a source file in the resulting library. Note that in
|
williamr@2
|
412 |
* more recent ELF binutils, we use .ident allowing the ID to be stripped.
|
williamr@2
|
413 |
* Usage:
|
williamr@2
|
414 |
* __FBSDID("$FreeBSD: src/sys/sys/cdefs.h,v 1.88.2.1 2005/10/09 07:48:48 netchild Exp $");
|
williamr@2
|
415 |
*/
|
williamr@2
|
416 |
#ifndef __FBSDID
|
williamr@2
|
417 |
#if !defined(lint) && !defined(STRIP_FBSDID)
|
williamr@2
|
418 |
#define __FBSDID(s) __IDSTRING(__CONCAT(__rcsid_,__LINE__),s)
|
williamr@2
|
419 |
#else
|
williamr@2
|
420 |
#define __FBSDID(s) struct __hack
|
williamr@2
|
421 |
#endif
|
williamr@2
|
422 |
#endif
|
williamr@2
|
423 |
|
williamr@2
|
424 |
#ifndef __RCSID
|
williamr@2
|
425 |
#ifndef NO__RCSID
|
williamr@2
|
426 |
#define __RCSID(s) __IDSTRING(__CONCAT(__rcsid_,__LINE__),s)
|
williamr@2
|
427 |
#else
|
williamr@2
|
428 |
#define __RCSID(s) struct __hack
|
williamr@2
|
429 |
#endif
|
williamr@2
|
430 |
#endif
|
williamr@2
|
431 |
|
williamr@2
|
432 |
#ifndef __RCSID_SOURCE
|
williamr@2
|
433 |
#ifndef NO__RCSID_SOURCE
|
williamr@2
|
434 |
#define __RCSID_SOURCE(s) __IDSTRING(__CONCAT(__rcsid_source_,__LINE__),s)
|
williamr@2
|
435 |
#else
|
williamr@2
|
436 |
#define __RCSID_SOURCE(s) struct __hack
|
williamr@2
|
437 |
#endif
|
williamr@2
|
438 |
#endif
|
williamr@2
|
439 |
|
williamr@2
|
440 |
#ifndef __SCCSID
|
williamr@2
|
441 |
#ifndef NO__SCCSID
|
williamr@2
|
442 |
#define __SCCSID(s) __IDSTRING(__CONCAT(__sccsid_,__LINE__),s)
|
williamr@2
|
443 |
#else
|
williamr@2
|
444 |
#define __SCCSID(s) struct __hack
|
williamr@2
|
445 |
#endif
|
williamr@2
|
446 |
#endif
|
williamr@2
|
447 |
|
williamr@2
|
448 |
#ifndef __COPYRIGHT
|
williamr@2
|
449 |
#ifndef NO__COPYRIGHT
|
williamr@2
|
450 |
#define __COPYRIGHT(s) __IDSTRING(__CONCAT(__copyright_,__LINE__),s)
|
williamr@2
|
451 |
#else
|
williamr@2
|
452 |
#define __COPYRIGHT(s) struct __hack
|
williamr@2
|
453 |
#endif
|
williamr@2
|
454 |
#endif
|
williamr@2
|
455 |
|
williamr@2
|
456 |
#ifndef __DECONST
|
williamr@2
|
457 |
#define __DECONST(type, var) ((type)(uintptr_t)(const void *)(var))
|
williamr@2
|
458 |
#endif
|
williamr@2
|
459 |
|
williamr@2
|
460 |
#ifndef __DEVOLATILE
|
williamr@2
|
461 |
#define __DEVOLATILE(type, var) ((type)(uintptr_t)(volatile void *)(var))
|
williamr@2
|
462 |
#endif
|
williamr@2
|
463 |
|
williamr@2
|
464 |
#ifndef __DEQUALIFY
|
williamr@2
|
465 |
#define __DEQUALIFY(type, var) ((type)(uintptr_t)(const volatile void *)(var))
|
williamr@2
|
466 |
#endif
|
williamr@2
|
467 |
|
williamr@2
|
468 |
/*-
|
williamr@2
|
469 |
* The following definitions are an extension of the behavior originally
|
williamr@2
|
470 |
* implemented in <sys/_posix.h>, but with a different level of granularity.
|
williamr@2
|
471 |
* POSIX.1 requires that the macros we test be defined before any standard
|
williamr@2
|
472 |
* header file is included.
|
williamr@2
|
473 |
*
|
williamr@2
|
474 |
* Here's a quick run-down of the versions:
|
williamr@2
|
475 |
* defined(_POSIX_SOURCE) 1003.1-1988
|
williamr@2
|
476 |
* _POSIX_C_SOURCE == 1 1003.1-1990
|
williamr@2
|
477 |
* _POSIX_C_SOURCE == 2 1003.2-1992 C Language Binding Option
|
williamr@2
|
478 |
* _POSIX_C_SOURCE == 199309 1003.1b-1993
|
williamr@2
|
479 |
* _POSIX_C_SOURCE == 199506 1003.1c-1995, 1003.1i-1995,
|
williamr@2
|
480 |
* and the omnibus ISO/IEC 9945-1: 1996
|
williamr@2
|
481 |
* _POSIX_C_SOURCE == 200112 1003.1-2001
|
williamr@2
|
482 |
*
|
williamr@2
|
483 |
* In addition, the X/Open Portability Guide, which is now the Single UNIX
|
williamr@2
|
484 |
* Specification, defines a feature-test macro which indicates the version of
|
williamr@2
|
485 |
* that specification, and which subsumes _POSIX_C_SOURCE.
|
williamr@2
|
486 |
*
|
williamr@2
|
487 |
* Our macros begin with two underscores to avoid namespace screwage.
|
williamr@2
|
488 |
*/
|
williamr@2
|
489 |
|
williamr@2
|
490 |
/* Deal with IEEE Std. 1003.1-1990, in which _POSIX_C_SOURCE == 1. */
|
williamr@2
|
491 |
#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 1
|
williamr@2
|
492 |
#undef _POSIX_C_SOURCE /* Probably illegal, but beyond caring now. */
|
williamr@2
|
493 |
#define _POSIX_C_SOURCE 199009
|
williamr@2
|
494 |
#endif
|
williamr@2
|
495 |
|
williamr@2
|
496 |
/* Deal with IEEE Std. 1003.2-1992, in which _POSIX_C_SOURCE == 2. */
|
williamr@2
|
497 |
#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 2
|
williamr@2
|
498 |
#undef _POSIX_C_SOURCE
|
williamr@2
|
499 |
#define _POSIX_C_SOURCE 199209
|
williamr@2
|
500 |
#endif
|
williamr@2
|
501 |
|
williamr@2
|
502 |
/* Deal with various X/Open Portability Guides and Single UNIX Spec. */
|
williamr@2
|
503 |
#ifdef _XOPEN_SOURCE
|
williamr@2
|
504 |
#if _XOPEN_SOURCE - 0 >= 600
|
williamr@2
|
505 |
#define __XSI_VISIBLE 600
|
williamr@2
|
506 |
#undef _POSIX_C_SOURCE
|
williamr@2
|
507 |
#define _POSIX_C_SOURCE 200112
|
williamr@2
|
508 |
#elif _XOPEN_SOURCE - 0 >= 500
|
williamr@2
|
509 |
#define __XSI_VISIBLE 500
|
williamr@2
|
510 |
#undef _POSIX_C_SOURCE
|
williamr@2
|
511 |
#define _POSIX_C_SOURCE 199506
|
williamr@2
|
512 |
#endif
|
williamr@2
|
513 |
#endif
|
williamr@2
|
514 |
|
williamr@2
|
515 |
/*
|
williamr@2
|
516 |
* Deal with all versions of POSIX. The ordering relative to the tests above is
|
williamr@2
|
517 |
* important.
|
williamr@2
|
518 |
*/
|
williamr@2
|
519 |
#if defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE)
|
williamr@2
|
520 |
#define _POSIX_C_SOURCE 198808
|
williamr@2
|
521 |
#endif
|
williamr@2
|
522 |
#ifdef _POSIX_C_SOURCE
|
williamr@2
|
523 |
#if _POSIX_C_SOURCE >= 200112
|
williamr@2
|
524 |
#ifdef __SYMBIAN32__
|
williamr@2
|
525 |
#define __XSI_VISIBLE 600
|
williamr@2
|
526 |
#define __BSD_VISIBLE 1
|
williamr@2
|
527 |
#endif //__SYMBIAN32__
|
williamr@2
|
528 |
#define __POSIX_VISIBLE 200112
|
williamr@2
|
529 |
#define __ISO_C_VISIBLE 1999
|
williamr@2
|
530 |
#elif _POSIX_C_SOURCE >= 199506
|
williamr@2
|
531 |
#define __POSIX_VISIBLE 199506
|
williamr@2
|
532 |
#define __ISO_C_VISIBLE 1990
|
williamr@2
|
533 |
#elif _POSIX_C_SOURCE >= 199309
|
williamr@2
|
534 |
#define __POSIX_VISIBLE 199309
|
williamr@2
|
535 |
#define __ISO_C_VISIBLE 1990
|
williamr@2
|
536 |
#elif _POSIX_C_SOURCE >= 199209
|
williamr@2
|
537 |
#define __POSIX_VISIBLE 199209
|
williamr@2
|
538 |
#define __ISO_C_VISIBLE 1990
|
williamr@2
|
539 |
#elif _POSIX_C_SOURCE >= 199009
|
williamr@2
|
540 |
#define __POSIX_VISIBLE 199009
|
williamr@2
|
541 |
#define __ISO_C_VISIBLE 1990
|
williamr@2
|
542 |
#else
|
williamr@2
|
543 |
#define __POSIX_VISIBLE 198808
|
williamr@2
|
544 |
#define __ISO_C_VISIBLE 0
|
williamr@2
|
545 |
#endif /* _POSIX_C_SOURCE */
|
williamr@2
|
546 |
#else
|
williamr@2
|
547 |
/*-
|
williamr@2
|
548 |
* Deal with _ANSI_SOURCE:
|
williamr@2
|
549 |
* If it is defined, and no other compilation environment is explicitly
|
williamr@2
|
550 |
* requested, then define our internal feature-test macros to zero. This
|
williamr@2
|
551 |
* makes no difference to the preprocessor (undefined symbols in preprocessing
|
williamr@2
|
552 |
* expressions are defined to have value zero), but makes it more convenient for
|
williamr@2
|
553 |
* a test program to print out the values.
|
williamr@2
|
554 |
*
|
williamr@2
|
555 |
* If a program mistakenly defines _ANSI_SOURCE and some other macro such as
|
williamr@2
|
556 |
* _POSIX_C_SOURCE, we will assume that it wants the broader compilation
|
williamr@2
|
557 |
* environment (and in fact we will never get here).
|
williamr@2
|
558 |
*/
|
williamr@2
|
559 |
#if defined(_ANSI_SOURCE) /* Hide almost everything. */
|
williamr@2
|
560 |
#define __POSIX_VISIBLE 0
|
williamr@2
|
561 |
#define __XSI_VISIBLE 0
|
williamr@2
|
562 |
#define __BSD_VISIBLE 0
|
williamr@2
|
563 |
#define __ISO_C_VISIBLE 1990
|
williamr@2
|
564 |
#elif defined(_C99_SOURCE) /* Localism to specify strict C99 env. */
|
williamr@2
|
565 |
#define __POSIX_VISIBLE 0
|
williamr@2
|
566 |
#define __XSI_VISIBLE 0
|
williamr@2
|
567 |
#define __BSD_VISIBLE 0
|
williamr@2
|
568 |
#define __ISO_C_VISIBLE 1999
|
williamr@2
|
569 |
#else /* Default environment: show everything. */
|
williamr@2
|
570 |
#define __POSIX_VISIBLE 200112
|
williamr@2
|
571 |
#define __XSI_VISIBLE 600
|
williamr@2
|
572 |
#define __BSD_VISIBLE 1
|
williamr@2
|
573 |
#define __ISO_C_VISIBLE 1999
|
williamr@2
|
574 |
#endif
|
williamr@2
|
575 |
#endif
|
williamr@2
|
576 |
|
williamr@2
|
577 |
#endif /* !_SYS_CDEFS_H_ */
|