| // 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 |
| |
| #include <memory> |
| #include <type_traits> |
| #include <utility> |
| |
| namespace arrow { |
| namespace internal { |
| |
| template <typename OutputType, typename InputType> |
| inline OutputType checked_cast(InputType&& value) { |
| static_assert(std::is_class<typename std::remove_pointer< |
| typename std::remove_reference<InputType>::type>::type>::value, |
| "checked_cast input type must be a class"); |
| static_assert(std::is_class<typename std::remove_pointer< |
| typename std::remove_reference<OutputType>::type>::type>::value, |
| "checked_cast output type must be a class"); |
| #ifdef NDEBUG |
| return static_cast<OutputType>(value); |
| #else |
| return dynamic_cast<OutputType>(value); |
| #endif |
| } |
| |
| template <class T, class U> |
| std::shared_ptr<T> checked_pointer_cast(std::shared_ptr<U> r) noexcept { |
| #ifdef NDEBUG |
| return std::static_pointer_cast<T>(std::move(r)); |
| #else |
| return std::dynamic_pointer_cast<T>(std::move(r)); |
| #endif |
| } |
| |
| template <class T, class U> |
| std::unique_ptr<T> checked_pointer_cast(std::unique_ptr<U> r) noexcept { |
| #ifdef NDEBUG |
| return std::unique_ptr<T>(static_cast<T*>(r.release())); |
| #else |
| return std::unique_ptr<T>(dynamic_cast<T*>(r.release())); |
| #endif |
| } |
| |
| } // namespace internal |
| } // namespace arrow |
