Function atan2

samples/common/half.h:3323–3326

Arc tangent function. \param x first argument \param y second argument \return arc tangent value template typename enable ::type atan2(T x, U y) { return functions::atan2(x, y); }

//		template<typename T,typename U> typename enable<expr,T,U>::type atan2(T x, U y) { return functions::atan2(x, y);
//}
inline expr atan2(half x, half y)
{
    return functions::atan2(x, y);
}
inline expr atan2(half x, expr y)
{
    return functions::atan2(x, y);