Function log

samples/common/half.h:3111–3114

Natural logorithm. \param arg function argument \return logarithm of \a arg to base e template typename enable ::type log(T arg) { return functions::log(arg); }

/// \return logarithm of \a arg to base e
//		template<typename T> typename enable<expr,T>::type log(T arg) { return functions::log(arg); }
inline expr log(half arg)
{
    return functions::log(arg);
}
inline expr log(expr arg)
{
    return functions::log(arg);