// Licensed to the Apache Software Foundation (ASF) under one // or more contributor license agreements. See the NOTICE file // distributed with this work for additional information // regarding copyright ownership. The ASF licenses this file // to you under the Apache License, Version 2.0 (the // "License"); you may not use this file except in compliance // with the License. You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, // software distributed under the License is distributed on an // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY // KIND, either express or implied. See the License for the // specific language governing permissions and limitations // under the License. #pragma once #define optional_CONFIG_SELECT_OPTIONAL optional_OPTIONAL_NONSTD #include "arrow/vendored/optional.hpp" // IWYU pragma: export namespace arrow { namespace util { template using optional = nonstd::optional; using nonstd::bad_optional_access; using nonstd::make_optional; using nonstd::nullopt; } // namespace util } // namespace arrow