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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_REFTOVALUE_INC_
#define LOKI_REFTOVALUE_INC_
// $Id: RefToValue.h 751 2006-10-17 19:50:37Z syntheticpp $
namespace Loki
{
////////////////////////////////////////////////////////////////////////////////
/// \class RefToValue
///
/// \ingroup SmartPointerGroup
/// Transports a reference as a value
/// Serves to implement the Colvin/Gibbons trick for SmartPtr/ScopeGuard
////////////////////////////////////////////////////////////////////////////////
template <class T>
class RefToValue
{
public:
RefToValue(T& ref) : ref_(ref)
{}
RefToValue(const RefToValue& rhs) : ref_(rhs.ref_)
{}
operator T& () const
{
return ref_;
}
private:
// Disable - not implemented
RefToValue();
RefToValue& operator=(const RefToValue&);
T& ref_;
};
////////////////////////////////////////////////////////////////////////////////
/// \ingroup ExceptionGroup
/// RefToValue creator.
////////////////////////////////////////////////////////////////////////////////
template <class T>
inline RefToValue<T> ByRef(T& t)
{
return RefToValue<T>(t);
}
}
#endif // end file guardian
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