1 /* 2 * Copyright (c) 2022-2022 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://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, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 #ifndef HISTREAMER_FOUNDATION_CPP_EXT_MEMORY_EXT_H 16 #define HISTREAMER_FOUNDATION_CPP_EXT_MEMORY_EXT_H 17 namespace OHOS { 18 namespace Media { 19 namespace CppExt { 20 template<class T> struct _unique_ptr_if { 21 typedef std::unique_ptr<T> _single_object; 22 }; 23 24 template<class T> struct _unique_ptr_if<T[]> { 25 typedef std::unique_ptr<T[]> _unknown_bound_array; 26 }; 27 28 template<class T, size_t N> struct _unique_ptr_if<T[N]> { 29 typedef void _known_bound_array; // not supported 30 }; 31 32 template<class T, class... U> 33 typename _unique_ptr_if<T>::_single_object make_unique(U&&... params) 34 { 35 return std::unique_ptr<T>(new T(std::forward<U>(params)...)); 36 } 37 38 template<class T> 39 typename _unique_ptr_if<T>::_unknown_bound_array make_unique(size_t n) 40 { 41 typedef typename std::remove_extent<T>::type U; 42 return std::unique_ptr<T>(new U[n]()); 43 } 44 45 template<class T, class... Args> 46 typename _unique_ptr_if<T>::_known_bound_array make_unique(Args&&...) = delete; 47 } // CppExt 48 } // Media 49 } // OHOS 50 #endif // HISTREAMER_FOUNDATION_CPP_EXT_MEMORY_EXT_H 51