\hypertarget{group___comparison}{}\section{operators.} \label{group___comparison}\index{operators.@{operators.}} A non-\/constructed delayed\+\_\+construct$<$\+T$>$ object is less than any constructed one. std\+::nullopt\+\_\+t is equivalent to a non-\/constructed object, and a value is equivalent to a constructed one. A non-\/constructed delayed\+\_\+construct$<$\+T$>$ object is less than any constructed one. std\+::nullopt\+\_\+t is equivalent to a non-\/constructed object, and a value is equivalent to a constructed one.