Viewing file:  likely.h (818 B) -rw-r--r--
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/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, you can obtain one at https://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
#ifndef ISC_LIKELY_H
#define ISC_LIKELY_H 1
/*%
* Performance
*/
#ifdef CPPCHECK
#define ISC_LIKELY(x) (x)
#define ISC_UNLIKELY(x) (x)
#else
#ifdef HAVE_BUILTIN_EXPECT
#define ISC_LIKELY(x) __builtin_expect((x), 1)
#define ISC_UNLIKELY(x) __builtin_expect((x), 0)
#else
#define ISC_LIKELY(x) (x)
#define ISC_UNLIKELY(x) (x)
#endif
#endif
#endif /* ISC_LIKELY_H */
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