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#include <Functions/FunctionFactory.h>
#include <Functions/FunctionBinaryArithmetic.h>
#include <Functions/GCDLCMImpl.h>
#include <boost/integer/common_factor.hpp>
namespace DB
{
namespace
{
struct NameGCD { static constexpr auto name = "gcd"; };
template <typename A, typename B>
struct GCDImpl : public GCDLCMImpl<A, B, GCDImpl<A, B>, NameGCD>
{
using ResultType = typename GCDLCMImpl<A, B, GCDImpl, NameGCD>::ResultType;
static ResultType applyImpl(A a, B b)
{
using Int = typename NumberTraits::ToInteger<ResultType>::Type;
return boost::integer::gcd(Int(a), Int(b)); // NOLINT(clang-analyzer-core.UndefinedBinaryOperatorResult)
}
};
using FunctionGCD = BinaryArithmeticOverloadResolver<GCDImpl, NameGCD, false, false>;
}
REGISTER_FUNCTION(GCD)
{
factory.registerFunction<FunctionGCD>();
}
}
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