2b72262b4f
I hereby relicense all my work on Sortix under the ISC license as below. All Sortix contributions by other people are already under this license, are not substantial enough to be copyrightable, or have been removed. All imported code from other projects is compatible with this license. All GPL licensed code from other projects had previously been removed. Copyright 2011-2016 Jonas 'Sortie' Termansen and contributors. Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies. THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
59 lines
2.1 KiB
C
59 lines
2.1 KiB
C
/*
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* Copyright (c) 2011, 2012, 2013, 2015 Jonas 'Sortie' Termansen.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* sys/cdefs.h
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* Declares internal macros for the C programming language.
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*/
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#ifndef INCLUDE_SYS_CDEFS_H
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#define INCLUDE_SYS_CDEFS_H
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#include <features.h>
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/* Preprocessor trick to turn anything into a string. */
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#define __STRINGIFY(x) #x
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/* Issue warning when this is used, except in defines, where the warning is
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inserted whenever the macro is expanded. This can be used to deprecated
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macros - and it happens on preprocessor level - so it shouldn't change any
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semantics of any code that uses such a macro. The argument msg should be a
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string that contains the warning. */
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#define __PRAGMA_WARNING(msg) _Pragma(__STRINGIFY(GCC warning msg))
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/* Use the real restrict keyword if it is available. Not that this really
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matters as gcc uses __restrict and __restrict__ as aliases for restrict, but
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it will look nicer after preprocessing. */
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#if __HAS_RESTRICT
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#undef __restrict
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#define __restrict restrict
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#endif
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/* Provide the restrict keyword if requested and unavailable. */
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#if !__HAS_RESTRICT && __want_restrict
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#define restrict __restrict
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#undef __HAS_RESTRICT
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#define __HAS_RESTRICT 2
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#endif
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/* Macro to declare a weak alias. */
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#if defined(__is_sortix_libc)
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#define weak_alias(old, new) \
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extern __typeof(old) new __attribute__((weak, alias(#old)))
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#endif
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#define __pure2 __attribute__((__const__))
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#endif
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