#include #include namespace DB { namespace { struct TanhName { static constexpr auto name = "tanh"; }; #if USE_FASTOPS struct Impl { static constexpr auto name = TanhName::name; static constexpr auto rows_per_iteration = 0; static constexpr bool always_returns_float64 = false; template static void execute(const T * src, size_t size, T * dst) { NFastOps::Tanh<>(src, size, dst); } }; using FunctionTanh = FunctionMathUnary; #else double tanh(double x) { return 2 / (1.0 + exp(-2 * x)) - 1; } using FunctionTanh = FunctionMathUnary>; #endif } void registerFunctionTanh(FunctionFactory & factory) { factory.registerFunction(FunctionFactory::CaseInsensitive); } }