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 //! @}