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1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 // | 4 // |
5 // A "smart" pointer type with reference tracking. Every pointer to a | 5 // A "smart" pointer type with reference tracking. Every pointer to a |
6 // particular object is kept on a circular linked list. When the last pointer | 6 // particular object is kept on a circular linked list. When the last pointer |
7 // to an object is destroyed or reassigned, the object is deleted. | 7 // to an object is destroyed or reassigned, the object is deleted. |
8 // | 8 // |
9 // Used properly, this deletes the object when the last reference goes away. | 9 // Used properly, this deletes the object when the last reference goes away. |
10 // There are several caveats: | 10 // There are several caveats: |
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165 | 165 |
166 // A function to convert T* into linked_ptr<T> | 166 // A function to convert T* into linked_ptr<T> |
167 // Doing e.g. make_linked_ptr(new FooBarBaz<type>(arg)) is a shorter notation | 167 // Doing e.g. make_linked_ptr(new FooBarBaz<type>(arg)) is a shorter notation |
168 // for linked_ptr<FooBarBaz<type> >(new FooBarBaz<type>(arg)) | 168 // for linked_ptr<FooBarBaz<type> >(new FooBarBaz<type>(arg)) |
169 template <typename T> | 169 template <typename T> |
170 linked_ptr<T> make_linked_ptr(T* ptr) { | 170 linked_ptr<T> make_linked_ptr(T* ptr) { |
171 return linked_ptr<T>(ptr); | 171 return linked_ptr<T>(ptr); |
172 } | 172 } |
173 | 173 |
174 #endif // BASE_LINKED_PTR_H_ | 174 #endif // BASE_LINKED_PTR_H_ |
175 | |
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