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- // Copyright 2021 The Chromium Authors. All rights reserved.
- // 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_
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