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#pragma once
#include <type_traits>
namespace NFlatHash {
class TLinearProbing {
public:
template <class SizeFitter, class F>
static auto FindBucket(SizeFitter sf, size_t idx, size_t sz, F f) {
idx = sf.EvalIndex(idx, sz);
while (!f(idx)) {
idx = sf.EvalIndex(++idx, sz);
}
return idx;
}
};
class TQuadraticProbing {
public:
template <class SizeFitter, class F>
static auto FindBucket(SizeFitter sf, size_t idx, size_t sz, F f) {
idx = sf.EvalIndex(idx, sz);
size_t k = 0;
while (!f(idx)) {
idx = sf.EvalIndex(idx + 2 * ++k - 1, sz);
}
return idx;
}
};
class TDenseProbing {
public:
template <class SizeFitter, class F>
static auto FindBucket(SizeFitter sf, size_t idx, size_t sz, F f) {
idx = sf.EvalIndex(idx, sz);
size_t k = 0;
while (!f(idx)) {
idx = sf.EvalIndex(idx + ++k, sz);
}
return idx;
}
};
} // NFlatHash
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