blob: 14de7e8cf53016b3371e522ac66dbac8aadc6ddd [file] [log] [blame]
Henrik Kjellander67765182017-06-28 20:58:07 +02001/*
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_RTC_BASE_CONSTRUCTORMAGIC_H_
12#define WEBRTC_RTC_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_RTC_BASE_CONSTRUCTORMAGIC_H_