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76d7ef146c
Also see https://clang.llvm.org/extra/clang-tidy/checks/bugprone/incorrect-roundings.html Signed-off-by: Alexander Borsuk <me@alex.bio>
20 lines
330 B
C++
20 lines
330 B
C++
#include "indexer/feature_impl.hpp"
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#include <algorithm>
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#include <cmath>
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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 std::min(0xFFl, std::lround(std::log(double(p)) / std::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>(std::pow(1.1, r));
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}
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} // namespace feature
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