1 // Copyright 2020 The Pigweed Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); you may not 4 // use this file except in compliance with the License. You may obtain a copy of 5 // the License at 6 // 7 // https://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 11 // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 12 // License for the specific language governing permissions and limitations under 13 // the License. 14 #pragma once 15 16 #include <cstring> 17 #include <limits> 18 #include <string> 19 20 #if __cplusplus >= 201703L 21 #include <string_view> 22 #endif // __cplusplus >= 201703L 23 24 namespace pw { 25 namespace kvs { 26 27 // Key was a simplified string_view used for KVS pre-C++17. 28 // It is now a simple alias since Pigweed requires C++17. 29 using Key = std::string_view; 30 31 } // namespace kvs 32 } // namespace pw 33