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24 lines
794 B
24 lines
794 B
4 months ago
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/*
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* Copyright (c) 2014-2018, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef CASSERT_H
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#define CASSERT_H
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#include <cdefs.h>
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/*******************************************************************************
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* Macro to flag a compile time assertion. It uses the preprocessor to generate
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* an invalid C construct if 'cond' evaluates to false.
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* The following compilation error is triggered if the assertion fails:
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* "error: size of array 'msg' is negative"
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* The 'unused' attribute ensures that the unused typedef does not emit a
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* compiler warning.
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******************************************************************************/
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#define CASSERT(cond, msg) \
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typedef char msg[(cond) ? 1 : -1] __unused
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#endif /* CASSERT_H */
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