3 * Copyright (c) 2021 Project CHIP Authors
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
26 * @brief A wrapper class for holding objects and its length, without the ownership of it.
27 * We can use C++20 std::span once we support it, the data() and size() come from C++20 std::span.
33 Span() : mDataBuf(nullptr), mDataLen(0) {}
34 Span(const T * databuf, size_t datalen) : mDataBuf(databuf), mDataLen(datalen) {}
36 const T * data() const { return mDataBuf; }
37 size_t size() const { return mDataLen; }
44 using ByteSpan = Span<uint8_t>;