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#pragma once
#include <contrib/libs/apache/arrow/cpp/src/arrow/array/array_base.h>
#include <contrib/libs/apache/arrow/cpp/src/arrow/array/builder_base.h>
#include <contrib/libs/apache/arrow/cpp/src/arrow/compute/kernel.h>
#include <contrib/libs/apache/arrow/cpp/src/arrow/datum.h>
#include <contrib/libs/apache/arrow/cpp/src/arrow/type_traits.h>
#include "func_common.h"
#include <cstdlib>
#include <type_traits>
namespace NKikimr::NArrow {
template<typename T>
__attribute__((always_inline)) void FastIntSwap(T& lhs, T& rhs) {
lhs ^= rhs;
rhs ^= lhs;
lhs ^= rhs;
}
struct TGreatestCommonDivisor {
static constexpr const char * Name = "gcd";
template <typename TRes, typename TArg0, typename TArg1>
static constexpr TRes Call(arrow::compute::KernelContext*, TArg0 lhs, TArg1 rhs, arrow::Status*) {
static_assert(std::is_integral_v<TRes>, "");
static_assert(std::is_integral_v<TArg0>, "");
static_assert(std::is_integral_v<TArg1>, "");
while (rhs != 0) {
lhs %= rhs;
FastIntSwap(lhs, rhs);
}
return lhs;
}
};
}
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