16a45d2591
_Static_assert is new in C11, and older versions of GCC don't support it. Detect whether static_assert is available in <assert.h> and if not, define a fallback macro. Change-Id: Iaf513677e5f356832e0a3d1f6b1f4f9ea07e6627 Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
56 lines
2.2 KiB
C
56 lines
2.2 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright(c) 2016 Intel Corporation. All rights reserved.
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* All rights reserved.
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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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*
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* * 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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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SPDK_ASSERT_H
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#define SPDK_ASSERT_H
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#include <assert.h>
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#define SPDK_CONCAT_(x, y) x##y
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#define SPDK_CONCAT(x, y) SPDK_CONCAT_(x, y)
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#ifdef static_assert
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#define SPDK_STATIC_ASSERT(cond, msg) static_assert(cond, msg)
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#else
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/*
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* Fallback for older compilers that don't support static_assert
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*
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* The array size will expand to 0 if the condition is true, or
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* -1 if the condition is false (causing compilation to fail).
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*/
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#define SPDK_STATIC_ASSERT(cond, msg) \
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typedef char SPDK_CONCAT(SPDK_STATIC_ASSERT_, __LINE__)[!!(cond) - 1]
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#endif
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#endif /* SPDK_ASSERT_H */
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