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1 // Copyright 2017 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef BASE_CONTAINERS_QUEUE_H_
6 #define BASE_CONTAINERS_QUEUE_H_
7 
8 #include <queue>
9 
10 #include "base/containers/circular_deque.h"
11 
12 namespace base {
13 
14 // Provides a definition of base::queue that's like std::queue but uses a
15 // base::circular_deque instead of std::deque. Since std::queue is just a
16 // wrapper for an underlying type, we can just provide a typedef for it that
17 // defaults to the base circular_deque.
18 template <class T, class Container = circular_deque<T>>
19 using queue = std::queue<T, Container>;
20 
21 }  // namespace base
22 
23 #endif  // BASE_CONTAINERS_QUEUE_H_
24