Lingfeng Yang | d744704 | 2018-10-25 11:09:18 -0700 | [diff] [blame] | 1 | // Copyright 2014 The Android Open Source Project |
| 2 | // |
| 3 | // This software is licensed under the terms of the GNU General Public |
| 4 | // License version 2, as published by the Free Software Foundation, and |
| 5 | // may be copied, distributed, and modified under those terms. |
| 6 | // |
| 7 | // This program is distributed in the hope that it will be useful, |
| 8 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | // GNU General Public License for more details. |
| 11 | |
| 12 | #pragma once |
| 13 | |
| 14 | // Use this inside a class declaration to ensure that the corresponding objects |
| 15 | // cannot be copy-constructed or assigned. For example: |
| 16 | // |
| 17 | // class Foo { |
| 18 | // .... |
| 19 | // DISALLOW_COPY_AND_ASSIGN(Foo) |
| 20 | // .... |
| 21 | // }; |
| 22 | // |
| 23 | // Note: this macro is sometimes defined in 3rd-party libs, so let's check first |
| 24 | #ifndef DISALLOW_COPY_AND_ASSIGN |
| 25 | |
| 26 | #define DISALLOW_COPY_AND_ASSIGN(T) \ |
| 27 | T(const T& other) = delete; \ |
| 28 | T& operator=(const T& other) = delete |
| 29 | |
| 30 | #endif |
| 31 | |
| 32 | #ifndef DISALLOW_COPY_ASSIGN_AND_MOVE |
| 33 | |
| 34 | #define DISALLOW_COPY_ASSIGN_AND_MOVE(T) \ |
| 35 | DISALLOW_COPY_AND_ASSIGN(T); \ |
| 36 | T(T&&) = delete; \ |
| 37 | T& operator=(T&&) = delete |
| 38 | |
| 39 | #endif |