11 lines
250 B
C++
11 lines
250 B
C++
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#pragma once
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#if __GNUC__ >= 3
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// make a hint for the branch predictor in a conditional or a loop
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#define LIKELY(x) __builtin_expect(!!(x), 1)
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#define UNLIKELY(x) __builtin_expect(!!(x), 0)
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#else
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#define LIKELY(x) (x)
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#define UNLIKELY(x) (x)
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#endif
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