access.hpp

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00001 // Copyright (C) 2010 NICTA and the authors listed below
00002 // http://nicta.com.au
00003 // 
00004 // Authors:
00005 // - Conrad Sanderson (conradsand at ieee dot org)
00006 // 
00007 // This file is part of the Armadillo C++ library.
00008 // It is provided without any warranty of fitness
00009 // for any purpose. You can redistribute this file
00010 // and/or modify it under the terms of the GNU
00011 // Lesser General Public License (LGPL) as published
00012 // by the Free Software Foundation, either version 3
00013 // of the License or (at your option) any later version.
00014 // (see http://www.opensource.org/licenses for more info)
00015 
00016 
00017 //! \addtogroup access
00018 //! @{
00019 
00020 
00021 class access
00022   {
00023   public:
00024   
00025   //! internal function to allow modification of data declared as read-only
00026   template<typename T1> arma_inline static T1& rw(const T1& x) { return const_cast<T1&>(x); }
00027 
00028   //! internal function to obtain the real part of either a plain number or a complex number
00029   template<typename eT> arma_inline static const eT& tmp_real(const eT&              X) { return X;        }
00030   template<typename  T> arma_inline static const   T tmp_real(const std::complex<T>& X) { return X.real(); }
00031 
00032 
00033   };
00034 
00035 
00036 //! @}