Method destruct_on_exit

CvPlot/ext/catch2/inc/catch.hpp:7358–7358

            // If this is a constructor benchmark, destruct the underlying object
            template <typename U>
            void destruct_on_exit(typename std::enable_if<Destruct, U>::type* = 0) { destruct<true>(); }
            // Otherwise, don't
            template <typename U>
            void destruct_on_exit(typename std::enable_if<!Destruct, U>::type* = 0) { }