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19 lines
329 B
C++
19 lines
329 B
C++
#include "indexer/feature_impl.hpp"
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#include "base/math.hpp"
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namespace feature
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{
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uint8_t PopulationToRank(uint64_t p)
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{
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return static_cast<uint8_t>(std::min(0xFF, base::SignedRound(log(double(p)) / log(1.1))));
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}
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uint64_t RankToPopulation(uint8_t r)
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{
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return static_cast<uint64_t>(pow(1.1, r));
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}
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} // namespace feature
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