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ea2870c839
Defines the `static_assert` macro in `assert.h` as required by the C11 standard. Change-Id: Ic25dc99537f995404b7b4280b72c6000a293a1df Reviewed-on: https://review.haiku-os.org/c/haiku/+/6916 Reviewed-by: waddlesplash <waddlesplash@gmail.com> Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org> Reviewed-by: Niels Sascha Reedijk <niels.reedijk@gmail.com>
58 lines
1.3 KiB
C
58 lines
1.3 KiB
C
/*
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* Copyright 2004-2015 Haiku, Inc. All Rights Reserved.
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* Distributed under the terms of the MIT License.
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*/
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/* Include guards are only on part of the file, as assert.h is required
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to support being included multiple times.
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E.g. the following is required to be valid:
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#undef NDEBUG
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#include <assert.h>
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assert(0); // this assertion will be triggered
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#define NDEBUG
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#include <assert.h>
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assert(0); // this assertion will not be triggered
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*/
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#undef assert
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#ifndef NDEBUG
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/* defining NDEBUG disables assert() functionality */
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#ifndef _ASSERT_H_
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#define _ASSERT_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern void __assert_fail(const char *assertion, const char *file,
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unsigned int line, const char *function)
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__attribute__ ((noreturn));
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extern void __assert_perror_fail(int error, const char *file,
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unsigned int line, const char *function)
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__attribute__ ((noreturn));
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#ifdef __cplusplus
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}
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#endif
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#endif /* !_ASSERT_H_ */
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#define assert(assertion) \
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((assertion) ? (void)0 : __assert_fail(#assertion, __FILE__, __LINE__, __PRETTY_FUNCTION__))
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#else /* NDEBUG */
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# define assert(condition) ((void)0)
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#endif
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#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L && !defined(static_assert)
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# define static_assert _Static_assert
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#endif
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