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#include <Functions/FunctionFactory.h>
#include <Functions/FunctionBinaryArithmetic.h>
#include <Core/Defines.h>
namespace DB
{
namespace ErrorCodes
{
extern const int NOT_IMPLEMENTED;
}
namespace
{
template <typename A, typename B>
struct BitTestImpl
{
using ResultType = UInt8;
static const constexpr bool allow_fixed_string = false;
static const constexpr bool allow_string_integer = false;
template <typename Result = ResultType>
NO_SANITIZE_UNDEFINED static inline Result apply(A a [[maybe_unused]], B b [[maybe_unused]])
{
if constexpr (is_big_int_v<A> || is_big_int_v<B>)
throw Exception(ErrorCodes::NOT_IMPLEMENTED, "bitTest is not implemented for big integers as second argument");
else
return (typename NumberTraits::ToInteger<A>::Type(a) >> typename NumberTraits::ToInteger<B>::Type(b)) & 1;
}
#if USE_EMBEDDED_COMPILER
static constexpr bool compilable = false; /// TODO
#endif
};
struct NameBitTest { static constexpr auto name = "bitTest"; };
using FunctionBitTest = BinaryArithmeticOverloadResolver<BitTestImpl, NameBitTest, true, false>;
}
REGISTER_FUNCTION(BitTest)
{
factory.registerFunction<FunctionBitTest>();
}
}
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