\hypertarget{group___equality}{}\section{operators.} \label{group___equality}\index{operators.@{operators.}} Two delayed\+\_\+construct$<$\+T$>$ objects are equal if either neither contains a value, or if both contain the same value. std\+::nullopt\+\_\+t is equivalent to a non-\/constructed object, and a value is equivalent to a constructed one. Two delayed\+\_\+construct$<$\+T$>$ objects are equal if either neither contains a value, or if both contain the same value. std\+::nullopt\+\_\+t is equivalent to a non-\/constructed object, and a value is equivalent to a constructed one.