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#pragma once
#include <utility>
namespace NFlatHash {
struct TSimpleExpander {
static constexpr bool NeedGrow(size_t size, size_t buckets) noexcept {
return size >= buckets / 2;
}
static constexpr bool WillNeedGrow(size_t size, size_t buckets) noexcept {
return NeedGrow(size + 1, buckets);
}
static constexpr size_t EvalNewSize(size_t buckets) noexcept {
return buckets * 2;
}
static constexpr size_t SuitableSize(size_t size) noexcept {
return size * 2 + 1;
}
};
} // namespace NFlatHash
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