34 lines
1.4 KiB
C++
34 lines
1.4 KiB
C++
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// Copyright (C) 2008-2013 National ICT Australia (NICTA)
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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// -------------------------------------------------------------------
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//
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// Written by Conrad Sanderson - http://conradsanderson.id.au
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//! \addtogroup access
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//! @{
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class access
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{
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public:
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//! internal function to allow modification of data declared as read-only (use with caution)
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template<typename T1> arma_inline static T1& rw (const T1& x) { return const_cast<T1& >(x); }
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template<typename T1> arma_inline static T1*& rwp(const T1* const& x) { return const_cast<T1*&>(x); }
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//! internal function to obtain the real part of either a plain number or a complex number
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template<typename eT> arma_inline static const eT& tmp_real(const eT& X) { return X; }
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template<typename T> arma_inline static const T tmp_real(const std::complex<T>& X) { return X.real(); }
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//! internal function to work around braindead compilers
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template<typename eT> arma_inline static const typename enable_if2<is_not_complex<eT>::value, const eT&>::result alt_conj(const eT& X) { return X; }
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template<typename eT> arma_inline static const typename enable_if2< is_complex<eT>::value, const eT >::result alt_conj(const eT& X) { return std::conj(X); }
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};
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//! @}
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