ClickHouse/dbms/Functions/divide.cpp
Ivan 97f2a2213e
Move all folders inside /dbms one level up (#9974)
* Move some code outside dbms/src folder
* Fix paths
2020-04-02 02:51:21 +03:00

45 lines
1.2 KiB
C++

#include <Functions/FunctionFactory.h>
#include <Functions/FunctionBinaryArithmetic.h>
namespace DB
{
namespace ErrorCodes
{
extern const int LOGICAL_ERROR;
}
template <typename A, typename B>
struct DivideFloatingImpl
{
using ResultType = typename NumberTraits::ResultOfFloatingPointDivision<A, B>::Type;
static const constexpr bool allow_decimal = true;
static const constexpr bool allow_fixed_string = false;
template <typename Result = ResultType>
static inline NO_SANITIZE_UNDEFINED Result apply(A a, B b)
{
return static_cast<Result>(a) / 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("DivideFloatingImpl expected a floating-point type", ErrorCodes::LOGICAL_ERROR);
return b.CreateFDiv(left, right);
}
#endif
};
struct NameDivide { static constexpr auto name = "divide"; };
using FunctionDivide = FunctionBinaryArithmetic<DivideFloatingImpl, NameDivide>;
void registerFunctionDivide(FunctionFactory & factory)
{
factory.registerFunction<FunctionDivide>();
}
}