71 lines
2 KiB
C
71 lines
2 KiB
C
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////////////////////////////////////////////////////////////////////////////////
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// The Loki Library
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// Copyright (c) 2006 Richard Sposato
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// Copyright (c) 2006 Peter K<>mmel
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// Permission to use, copy, modify, distribute and sell this software for any
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// purpose is hereby granted without fee, provided that the above copyright
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// notice appear in all copies and that both that copyright notice and this
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// permission notice appear in supporting documentation.
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// The authors make no representations about the
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// suitability of this software for any purpose. It is provided "as is"
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// without express or implied warranty.
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////////////////////////////////////////////////////////////////////////////////
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#ifndef LOKI_REFTOVALUE_H
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#define LOKI_REFTOVALUE_H
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namespace Loki
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{
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////////////////////////////////////////////////////////////////////////////////
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/// \class RefToValue
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///
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/// \ingroup SmartPointerGroup
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/// Transports a reference as a value
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/// Serves to implement the Colvin/Gibbons trick for SmartPtr/ScopeGuard
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////////////////////////////////////////////////////////////////////////////////
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template <class T>
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class RefToValue
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{
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public:
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RefToValue(T& ref) : ref_(ref)
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{}
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RefToValue(const RefToValue& rhs) : ref_(rhs.ref_)
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{}
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operator T& () const
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{
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return ref_;
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}
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private:
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// Disable - not implemented
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RefToValue();
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RefToValue& operator=(const RefToValue&);
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T& ref_;
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};
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////////////////////////////////////////////////////////////////////////////////
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/// \function ByRef
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///
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/// \ingroup SmartPointerGroup
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/// RefToValue creator.
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////////////////////////////////////////////////////////////////////////////////
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template <class T>
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inline RefToValue<T> ByRef(T& t)
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{
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return RefToValue<T>(t);
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}
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}
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#endif //LOKI_REFTOVALUE_H
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