ClickHouse/src/Functions/bitXor.cpp

50 lines
1.2 KiB
C++

#include <Functions/FunctionFactory.h>
#include <Functions/FunctionBinaryArithmetic.h>
namespace DB
{
namespace ErrorCodes
{
extern const int LOGICAL_ERROR;
}
namespace
{
template <typename A, typename B>
struct BitXorImpl
{
using ResultType = typename NumberTraits::ResultOfBit<A, B>::Type;
static constexpr bool allow_fixed_string = true;
static const constexpr bool allow_string_integer = false;
template <typename Result = ResultType>
static inline Result apply(A a, B b)
{
return static_cast<Result>(a) ^ static_cast<Result>(b);
}
#if USE_EMBEDDED_COMPILER
static constexpr bool compilable = true;
static inline llvm::Value * compile(llvm::IRBuilder<> & b, llvm::Value * left, llvm::Value * right, bool)
{
if (!left->getType()->isIntegerTy())
throw Exception("BitXorImpl expected an integral type", ErrorCodes::LOGICAL_ERROR);
return b.CreateXor(left, right);
}
#endif
};
struct NameBitXor { static constexpr auto name = "bitXor"; };
using FunctionBitXor = BinaryArithmeticOverloadResolver<BitXorImpl, NameBitXor, true, false>;
}
void registerFunctionBitXor(FunctionFactory & factory)
{
factory.registerFunction<FunctionBitXor>();
}
}