Method erf

samples/common/half.h:2007–2014

Error function 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 erf(float arg)
    {
#if HALF_ENABLE_CPP11_CMATH
        return expr(std::erf(arg));
#else
        return expr(static_cast<float>(erf(static_cast<double>(arg))));
#endif
    }

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