Method exp2

samples/common/half.h:1788–1795

Binary exponential 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 exp2(float arg)
    {
#if HALF_ENABLE_CPP11_CMATH
        return expr(std::exp2(arg));
#else
        return expr(static_cast<float>(std::exp(arg * 0.69314718055994530941723212145818)));
#endif
    }

    /// Logarithm implementation.
    /// \param arg function argument