| henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 1 | /* |
| 2 | * libjingle |
| 3 | * Copyright 2004--2005, Google Inc. |
| 4 | * |
| wu@webrtc.org | 5c9dd59 | 2013-10-25 21:18:33 +0000 | [diff] [blame] | 5 | * Redistribution and use in source and binary forms, with or without |
| henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 6 | * modification, are permitted provided that the following conditions are met: |
| 7 | * |
| wu@webrtc.org | 5c9dd59 | 2013-10-25 21:18:33 +0000 | [diff] [blame] | 8 | * 1. Redistributions of source code must retain the above copyright notice, |
| henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 9 | * this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| 11 | * this list of conditions and the following disclaimer in the documentation |
| 12 | * and/or other materials provided with the distribution. |
| wu@webrtc.org | 5c9dd59 | 2013-10-25 21:18:33 +0000 | [diff] [blame] | 13 | * 3. The name of the author may not be used to endorse or promote products |
| henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 14 | * derived from this software without specific prior written permission. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| wu@webrtc.org | 5c9dd59 | 2013-10-25 21:18:33 +0000 | [diff] [blame] | 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 18 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
| wu@webrtc.org | 5c9dd59 | 2013-10-25 21:18:33 +0000 | [diff] [blame] | 19 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 20 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 21 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
| 22 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| wu@webrtc.org | 5c9dd59 | 2013-10-25 21:18:33 +0000 | [diff] [blame] | 23 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| 24 | * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 25 | * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 26 | */ |
| 27 | |
| 28 | #ifndef TALK_BASE_CONSTRUCTORMAGIC_H_ |
| 29 | #define TALK_BASE_CONSTRUCTORMAGIC_H_ |
| 30 | |
| 31 | #define DISALLOW_ASSIGN(TypeName) \ |
| 32 | void operator=(const TypeName&) |
| 33 | |
| 34 | // A macro to disallow the evil copy constructor and operator= functions |
| wu@webrtc.org | 5c9dd59 | 2013-10-25 21:18:33 +0000 | [diff] [blame] | 35 | // This should be used in the private: declarations for a class. |
| 36 | // Undefine this, just in case. Some third-party includes have their own |
| 37 | // version. |
| 38 | #undef DISALLOW_COPY_AND_ASSIGN |
| henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 39 | #define DISALLOW_COPY_AND_ASSIGN(TypeName) \ |
| 40 | TypeName(const TypeName&); \ |
| 41 | DISALLOW_ASSIGN(TypeName) |
| 42 | |
| 43 | // Alternative, less-accurate legacy name. |
| 44 | #define DISALLOW_EVIL_CONSTRUCTORS(TypeName) \ |
| 45 | DISALLOW_COPY_AND_ASSIGN(TypeName) |
| 46 | |
| 47 | // A macro to disallow all the implicit constructors, namely the |
| 48 | // default constructor, copy constructor and operator= functions. |
| 49 | // |
| 50 | // This should be used in the private: declarations for a class |
| 51 | // that wants to prevent anyone from instantiating it. This is |
| 52 | // especially useful for classes containing only static methods. |
| 53 | #define DISALLOW_IMPLICIT_CONSTRUCTORS(TypeName) \ |
| 54 | TypeName(); \ |
| 55 | DISALLOW_EVIL_CONSTRUCTORS(TypeName) |
| 56 | |
| 57 | |
| 58 | #endif // TALK_BASE_CONSTRUCTORMAGIC_H_ |