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31 lines
867 B
C
31 lines
867 B
C
/*
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* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* See the COPYRIGHT file distributed with this work for additional
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* information regarding copyright ownership.
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*/
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#ifndef ISC_LIKELY_H
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#define ISC_LIKELY_H 1
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/*%
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* Performance
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*/
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#ifdef CPPCHECK
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#define ISC_LIKELY(x) (x)
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#define ISC_UNLIKELY(x) (x)
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#else /* ifdef CPPCHECK */
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#ifdef HAVE_BUILTIN_EXPECT
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#define ISC_LIKELY(x) __builtin_expect(!!(x), 1)
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#define ISC_UNLIKELY(x) __builtin_expect(!!(x), 0)
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#else /* ifdef HAVE_BUILTIN_EXPECT */
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#define ISC_LIKELY(x) (x)
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#define ISC_UNLIKELY(x) (x)
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#endif /* ifdef HAVE_BUILTIN_EXPECT */
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#endif /* ifdef CPPCHECK */
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#endif /* ISC_LIKELY_H */
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