range_query.h

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#pragma once
 
#include <concepts>
#include <cstdint>
#include <vector>
 
#include "clustering/math/thread.h"
#include "clustering/ndarray.h"
 
namespace clustering::index {

template <class Q, class T>
concept RangeIndex = std::constructible_from<Q, const NDArray<T, 2> &> &&
                     requires(const Q &q, T radius, math::Pool pool) {
                       {
                         q.query(radius, pool)
                       } -> std::same_as<std::vector<std::vector<std::int32_t>>>;
                     };
 
} // namespace clustering::index