Method cbrt

samples/common/half.h:1848–1858

Cubic root implementation. \param arg function argument \return function value stored in single-preicision

    /// \param arg function argument
    /// \return function value stored in single-preicision
    static expr cbrt(float arg)
    {
#if HALF_ENABLE_CPP11_CMATH
        return expr(std::cbrt(arg));
#else
        if (builtin_isnan(arg) || builtin_isinf(arg))
            return expr(arg);
        return expr(builtin_signbit(arg) ? -static_cast<float>(std::pow(-static_cast<double>(arg), 1.0 / 3.0))
                                         : static_cast<float>(std::pow(static_cast<double>(arg), 1.0 / 3.0)));
#endif
    }

    /// Hypotenuse implementation.
    /// \param x first argument