ClickHouse/dbms/src/Functions/isNaN.cpp
2018-09-09 01:04:39 +03:00

28 lines
484 B
C++

#include <Functions/FunctionNumericPredicate.h>
#include <Functions/FunctionFactory.h>
namespace DB
{
struct IsNaNImpl
{
static constexpr auto name = "isNaN";
template <typename T>
static bool execute(const T t)
{
/// Suppression for PVS-Studio.
return t != t; //-V501
}
};
using FunctionIsNaN = FunctionNumericPredicate<IsNaNImpl>;
void registerFunctionIsNaN(FunctionFactory & factory)
{
factory.registerFunction<FunctionIsNaN>();
}
}