mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-12 17:32:32 +00:00
60 lines
1.3 KiB
C++
60 lines
1.3 KiB
C++
#include <Functions/FunctionFactory.h>
|
|
#include <Functions/FunctionUnaryArithmetic.h>
|
|
#include <DataTypes/NumberTraits.h>
|
|
|
|
|
|
namespace DB
|
|
{
|
|
namespace ErrorCodes
|
|
{
|
|
extern const int LOGICAL_ERROR;
|
|
}
|
|
|
|
namespace
|
|
{
|
|
|
|
template <typename A>
|
|
struct BitNotImpl
|
|
{
|
|
using ResultType = typename NumberTraits::ResultOfBitNot<A>::Type;
|
|
static const constexpr bool allow_fixed_string = true;
|
|
static const constexpr bool allow_string_integer = false;
|
|
|
|
static inline ResultType apply(A a)
|
|
{
|
|
return ~static_cast<ResultType>(a);
|
|
}
|
|
|
|
#if USE_EMBEDDED_COMPILER
|
|
static constexpr bool compilable = true;
|
|
|
|
static inline llvm::Value * compile(llvm::IRBuilder<> & b, llvm::Value * arg, bool)
|
|
{
|
|
if (!arg->getType()->isIntegerTy())
|
|
throw Exception("BitNotImpl expected an integral type", ErrorCodes::LOGICAL_ERROR);
|
|
return b.CreateNot(arg);
|
|
}
|
|
#endif
|
|
};
|
|
|
|
struct NameBitNot { static constexpr auto name = "bitNot"; };
|
|
using FunctionBitNot = FunctionUnaryArithmetic<BitNotImpl, NameBitNot, true>;
|
|
|
|
}
|
|
|
|
template <> struct FunctionUnaryArithmeticMonotonicity<NameBitNot>
|
|
{
|
|
static bool has() { return false; }
|
|
static IFunction::Monotonicity get(const Field &, const Field &)
|
|
{
|
|
return {};
|
|
}
|
|
};
|
|
|
|
void registerFunctionBitNot(FunctionFactory & factory)
|
|
{
|
|
factory.registerFunction<FunctionBitNot>();
|
|
}
|
|
|
|
}
|