ClickHouse/src/Functions/bitOr.cpp
Azat Khuzhin 7da4083237 Forbid bit functions for floats
This will fix the following UB report [1]:

  "../src/Functions/bitAnd.cpp:24:61: runtime error: nan is outside the
range of representable values of type 'long' Received signal -3 Received
signal Unknown signal (-3)"

  [1]: https://clickhouse-test-reports.s3.yandex.net/19824/89c4055202b9d08459f90ee5791d4e3017b82fbf/fuzzer_ubsan/report.html#fail1
2021-01-30 09:12:31 +03:00

49 lines
1.1 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 BitOrImpl
{
using ResultType = typename NumberTraits::ResultOfBit<A, B>::Type;
static constexpr const bool allow_fixed_string = true;
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("BitOrImpl expected an integral type", ErrorCodes::LOGICAL_ERROR);
return b.CreateOr(left, right);
}
#endif
};
struct NameBitOr { static constexpr auto name = "bitOr"; };
using FunctionBitOr = BinaryArithmeticOverloadResolver<BitOrImpl, NameBitOr, true, false>;
}
void registerFunctionBitOr(FunctionFactory & factory)
{
factory.registerFunction<FunctionBitOr>();
}
}