blocxx

RefToValue.hpp

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00001 /*******************************************************************************
00002 * Copyright (C) 2005, Quest Software, Inc. All rights reserved.
00003 * Copyright (C) 2006, Novell, Inc. All rights reserved.
00004 * 
00005 * Redistribution and use in source and binary forms, with or without
00006 * modification, are permitted provided that the following conditions are met:
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00008 *     * Redistributions of source code must retain the above copyright notice,
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00014 *       Quest Software, Inc., 
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00020 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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00032 
00034 // The Loki Library
00035 // Copyright (c) 2006 Richard Sposato
00036 // Copyright (c) 2006 Peter Kümmel
00037 // Permission to use, copy, modify, distribute and sell this software for any 
00038 //     purpose is hereby granted without fee, provided that the above copyright 
00039 //     notice appear in all copies and that both that copyright notice and this 
00040 //     permission notice appear in supporting documentation.
00041 // The authors make no representations about the 
00042 //     suitability of this software for any purpose. It is provided "as is" 
00043 //     without express or implied warranty.
00045 #ifndef BLOCXX_REF_TO_VALUE_HPP_INCLUDE_GUARD_
00046 #define BLOCXX_REF_TO_VALUE_HPP_INCLUDE_GUARD_
00047 
00048 #include "blocxx/BLOCXX_config.h"
00049 namespace BLOCXX_NAMESPACE
00050 {
00051 
00058 
00059     template <class T>
00060     class RefToValue
00061     {   
00062     public:
00063     
00064         RefToValue(T& ref) : ref_(ref) 
00065         {}
00066 
00067         RefToValue(const RefToValue& rhs) : ref_(rhs.ref_)
00068         {}
00069 
00070         operator T& () const 
00071         {
00072             return ref_;
00073         }
00074 
00075     private:
00076         // Disable - not implemented
00077         RefToValue();
00078         RefToValue& operator=(const RefToValue&);
00079         
00080         T& ref_;
00081     };
00082 
00083 
00087 
00088     template <class T>
00089     inline RefToValue<T> ByRef(T& t)
00090     {
00091         return RefToValue<T>(t);
00092     }    
00093     
00094 }
00095 
00096 
00097 
00098 #endif
00099