| // Copyright 2021 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef BASE_CONTAINERS_EXTEND_H_ |
| #define BASE_CONTAINERS_EXTEND_H_ |
| |
| #include <iterator> |
| #include <vector> |
| |
| namespace base { |
| |
| // Append to |dst| all elements of |src| by std::move-ing them out of |src|. |
| // After this operation, |src| will be empty. |
| template <typename T> |
| void Extend(std::vector<T>& dst, std::vector<T>&& src) { |
| dst.insert(dst.end(), std::make_move_iterator(src.begin()), |
| std::make_move_iterator(src.end())); |
| src.clear(); |
| } |
| |
| // Append to |dst| all elements of |src| by copying them out of |src|. |src| is |
| // not changed. |
| template <typename T> |
| void Extend(std::vector<T>& dst, const std::vector<T>& src) { |
| dst.insert(dst.end(), src.begin(), src.end()); |
| } |
| |
| } // namespace base |
| |
| #endif // BASE_CONTAINERS_EXTEND_H_ |