webrtc/system_wrappers/interface/constructor_magic.h

51 lines
1.7 KiB
C

/*
* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
/*
* WebRtc
* Copy from third_party/libjingle/source/talk/base/constructormagic.h
*/
#ifndef WEBRTC_SYSTEM_WRAPPERS_INTERFACE_CONSTRUCTOR_MAGIC_H_
#define WEBRTC_SYSTEM_WRAPPERS_INTERFACE_CONSTRUCTOR_MAGIC_H_
#ifndef DISALLOW_ASSIGN
#define DISALLOW_ASSIGN(TypeName) \
void operator=(const TypeName&)
#endif
#ifndef DISALLOW_COPY_AND_ASSIGN
// A macro to disallow the evil copy constructor and operator= functions
// This should be used in the private: declarations for a class
#define DISALLOW_COPY_AND_ASSIGN(TypeName) \
TypeName(const TypeName&); \
DISALLOW_ASSIGN(TypeName)
#endif
#ifndef DISALLOW_EVIL_CONSTRUCTORS
// Alternative, less-accurate legacy name.
#define DISALLOW_EVIL_CONSTRUCTORS(TypeName) \
DISALLOW_COPY_AND_ASSIGN(TypeName)
#endif
#ifndef DISALLOW_IMPLICIT_CONSTRUCTORS
// A macro to disallow all the implicit constructors, namely the
// default constructor, copy constructor and operator= functions.
//
// This should be used in the private: declarations for a class
// that wants to prevent anyone from instantiating it. This is
// especially useful for classes containing only static methods.
#define DISALLOW_IMPLICIT_CONSTRUCTORS(TypeName) \
TypeName(); \
DISALLOW_EVIL_CONSTRUCTORS(TypeName)
#endif
#endif // WEBRTC_SYSTEM_WRAPPERS_INTERFACE_CONSTRUCTOR_MAGIC_H_