/usr/include/ace/Copy_Disabled.h is in libace-dev 6.0.3+dfsg-0.2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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//===========================================================================
/**
* @file Copy_Disabled.h
*
* $Id: Copy_Disabled.h 80826 2008-03-04 14:51:23Z wotte $
*
* @author Carlos O'Ryan <coryan@uci.edu>
*/
//===========================================================================
#ifndef ACE_COPY_DISABLED_H
#define ACE_COPY_DISABLED_H
#include /**/ "ace/pre.h"
#include /**/ "ace/ACE_export.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
ACE_BEGIN_VERSIONED_NAMESPACE_DECL
/**
* @class ACE_Copy_Disabled
*
* @brief Helper class to disable copy construction and assignment
*
* Classes used to control OS and other resources are not "canonical",
* i.e. they have their copy constructor and assignment operators
* disabled.
* This is often done by making the copy constructor and assignment
* operators private, effectively disallowing copying by clients of
* the class (including derived classes). If the copy constructor and
* assingment operators are left unimplemented then the class itself
* cannot make any copies of its instances, because it would result in
* link errors.
*
* To use this class simply use private inheritance:
*
* class Foo : private ACE_Copy_Disabled
* {
* // code here
* };
*
*/
class ACE_Export ACE_Copy_Disabled
{
public:
/// Default constructor
ACE_Copy_Disabled (void);
private:
ACE_Copy_Disabled (const ACE_Copy_Disabled &);
ACE_Copy_Disabled &operator= (const ACE_Copy_Disabled &);
};
ACE_END_VERSIONED_NAMESPACE_DECL
#include /**/ "ace/post.h"
#endif /* ACE_COPY_DISABLED_H */
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