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////////////////////////////////////////////////////////////////////////////////
// The Loki Library
// Copyright (c) 2006 Richard Sposato
// Copyright (c) 2006 Peter Kümmel
// Permission to use, copy, modify, distribute and sell this software for any
// purpose is hereby granted without fee, provided that the above copyright
// notice appear in all copies and that both that copyright notice and this
// permission notice appear in supporting documentation.
// The authors make no representations about the
// suitability of this software for any purpose. It is provided "as is"
// without express or implied warranty.
////////////////////////////////////////////////////////////////////////////////
#ifndef LOKI_CONST_POLICY_INC_
#define LOKI_CONST_POLICY_INC_
// $Id: ConstPolicy.h 769 2006-10-26 10:58:19Z syntheticpp $
namespace Loki
{
////////////////////////////////////////////////////////////////////////////////
/// @note These policy classes are used in LockingPtr and SmartPtr to define
/// how const is propagated from the pointee.
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
/// \class DontPropagateConst
///
/// \ingroup ConstGroup
/// Don't propagate constness of pointed or referred object.
////////////////////////////////////////////////////////////////////////////////
template< class T >
struct DontPropagateConst
{
typedef T Type;
};
////////////////////////////////////////////////////////////////////////////////
/// \class PropagateConst
///
/// \ingroup ConstGroup
/// Propagate constness of pointed or referred object.
////////////////////////////////////////////////////////////////////////////////
template< class T >
struct PropagateConst
{
typedef const T Type;
};
// default will not break existing code
#ifndef LOKI_DEFAULT_CONSTNESS
#define LOKI_DEFAULT_CONSTNESS ::Loki::DontPropagateConst
#endif
} // end namespace Loki
#endif // end file guardian
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