.. SPDX-FileCopyrightText: 2019-2021 Intel Corporation .. .. SPDX-License-Identifier: CC-BY-4.0 ================= Size and capacity ================= .. namespace:: oneapi::tbb::enumerable_thread_specific .. cpp:function:: size_type size() const Returns the number of elements in ``*this``. The value is equal to the number of distinct threads that have called ``local()`` after ``*this`` was constructed or most recently cleared. .. cpp:function:: bool empty() const Returns ``true`` if the container is empty; ``false``, otherwise.