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59 lines
1.3 KiB
C++
59 lines
1.3 KiB
C++
#include <Functions/FunctionFactory.h>
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#include <Functions/FunctionUnaryArithmetic.h>
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#include <DataTypes/NumberTraits.h>
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namespace DB
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{
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namespace ErrorCodes
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{
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extern const int LOGICAL_ERROR;
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}
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namespace
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{
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template <typename A>
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struct BitNotImpl
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{
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using ResultType = typename NumberTraits::ResultOfBitNot<A>::Type;
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static constexpr bool allow_string_or_fixed_string = true;
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static inline ResultType NO_SANITIZE_UNDEFINED apply(A a)
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{
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return ~static_cast<ResultType>(a);
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}
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#if USE_EMBEDDED_COMPILER
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static constexpr bool compilable = true;
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static inline llvm::Value * compile(llvm::IRBuilder<> & b, llvm::Value * arg, bool)
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{
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if (!arg->getType()->isIntegerTy())
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throw Exception(ErrorCodes::LOGICAL_ERROR, "BitNotImpl expected an integral type");
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return b.CreateNot(arg);
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}
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#endif
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};
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struct NameBitNot { static constexpr auto name = "bitNot"; };
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using FunctionBitNot = FunctionUnaryArithmetic<BitNotImpl, NameBitNot, true>;
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}
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template <> struct FunctionUnaryArithmeticMonotonicity<NameBitNot>
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{
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static bool has() { return false; }
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static IFunction::Monotonicity get(const Field &, const Field &)
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{
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return {};
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}
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};
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REGISTER_FUNCTION(BitNot)
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{
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factory.registerFunction<FunctionBitNot>();
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}
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}
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