| 1 | //======================================================================== |
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| 2 | // |
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| 3 | // GooLikely.h |
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| 4 | // |
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| 5 | // This file is licensed under the GPLv2 or later |
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| 6 | // |
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| 7 | // Copyright (C) 2008 Kees Cook <kees@outflux.net> |
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| 8 | // |
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| 9 | //======================================================================== |
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| 10 | |
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| 11 | #ifndef GOOLIKELY_H |
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| 12 | #define GOOLIKELY_H |
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| 13 | |
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| 14 | #if defined(__GNUC__) && (__GNUC__ > 2) && defined(__OPTIMIZE__) |
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| 15 | # define likely(x) __builtin_expect((x), 1) |
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| 16 | # define unlikely(x) __builtin_expect((x), 0) |
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| 17 | #else |
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| 18 | # define likely(x) (x) |
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| 19 | # define unlikely(x) (x) |
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| 20 | #endif |
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| 21 | |
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| 22 | #endif |
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| 23 | |
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