1 // Licensed to the Apache Software Foundation (ASF) under one 2 // or more contributor license agreements. See the NOTICE file 3 // distributed with this work for additional information 4 // regarding copyright ownership. The ASF licenses this file 5 // to you under the Apache License, Version 2.0 (the 6 // "License"); you may not use this file except in compliance 7 // with the License. You may obtain a copy of the License at 8 // 9 // http://www.apache.org/licenses/LICENSE-2.0 10 // 11 // Unless required by applicable law or agreed to in writing, 12 // software distributed under the License is distributed on an 13 // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 14 // KIND, either express or implied. See the License for the 15 // specific language governing permissions and limitations 16 // under the License. 17 18 #pragma once 19 20 #include <memory> 21 #include <type_traits> 22 #include <utility> 23 24 namespace arrow { 25 namespace internal { 26 27 template <typename T, typename... A> make_unique(A &&...args)28typename std::enable_if<!std::is_array<T>::value, std::unique_ptr<T>>::type make_unique( 29 A&&... args) { 30 return std::unique_ptr<T>(new T(std::forward<A>(args)...)); 31 } 32 33 template <typename T> 34 typename std::enable_if<std::is_array<T>::value && std::extent<T>::value == 0, 35 std::unique_ptr<T>>::type make_unique(std::size_t n)36make_unique(std::size_t n) { 37 using value_type = typename std::remove_extent<T>::type; 38 return std::unique_ptr<value_type[]>(new value_type[n]); 39 } 40 41 } // namespace internal 42 } // namespace arrow 43