1 /* 2 * Copyright 2004 The WebRTC Project Authors. All rights reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef WEBRTC_BASE_CONSTRUCTORMAGIC_H_ 12 #define WEBRTC_BASE_CONSTRUCTORMAGIC_H_ 13 14 // Put this in the declarations for a class to be unassignable. 15 #define RTC_DISALLOW_ASSIGN(TypeName) \ 16 void operator=(const TypeName&) = delete 17 18 // A macro to disallow the copy constructor and operator= functions. This should 19 // be used in the declarations for a class. 20 #define RTC_DISALLOW_COPY_AND_ASSIGN(TypeName) \ 21 TypeName(const TypeName&) = delete; \ 22 RTC_DISALLOW_ASSIGN(TypeName) 23 24 // A macro to disallow all the implicit constructors, namely the default 25 // constructor, copy constructor and operator= functions. 26 // 27 // This should be used in the declarations for a class that wants to prevent 28 // anyone from instantiating it. This is especially useful for classes 29 // containing only static methods. 30 #define RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(TypeName) \ 31 TypeName() = delete; \ 32 RTC_DISALLOW_COPY_AND_ASSIGN(TypeName) 33 34 #endif // WEBRTC_BASE_CONSTRUCTORMAGIC_H_ 35