132 lines
2.6 KiB
C++
132 lines
2.6 KiB
C++
// Copyright 2008-2016 Conrad Sanderson (http://conradsanderson.id.au)
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// Copyright 2008-2016 National ICT Australia (NICTA)
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// ------------------------------------------------------------------------
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//! \addtogroup unwrap_cube
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//! @{
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template<typename T1>
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struct unwrap_cube
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{
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typedef typename T1::elem_type eT;
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inline
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unwrap_cube(const T1& A)
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: M(A)
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{
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arma_extra_debug_sigprint();
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}
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const Cube<eT> M;
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template<typename eT2>
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constexpr bool is_alias(const Cube<eT2>&) const { return false; }
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};
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template<typename eT>
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struct unwrap_cube< Cube<eT> >
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{
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inline
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unwrap_cube(const Cube<eT>& A)
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: M(A)
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{
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arma_extra_debug_sigprint();
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}
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const Cube<eT>& M;
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template<typename eT2>
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arma_inline bool is_alias(const Cube<eT2>& X) const { return (void_ptr(&M) == void_ptr(&X)); }
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};
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//
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//
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//
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template<typename T1>
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struct unwrap_cube_check
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{
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typedef typename T1::elem_type eT;
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inline
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unwrap_cube_check(const T1& A, const Cube<eT>&)
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: M(A)
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{
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arma_extra_debug_sigprint();
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arma_type_check(( is_arma_cube_type<T1>::value == false ));
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}
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inline
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unwrap_cube_check(const T1& A, const bool)
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: M(A)
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{
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arma_extra_debug_sigprint();
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arma_type_check(( is_arma_cube_type<T1>::value == false ));
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}
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const Cube<eT> M;
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};
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template<typename eT>
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struct unwrap_cube_check< Cube<eT> >
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{
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inline
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unwrap_cube_check(const Cube<eT>& A, const Cube<eT>& B)
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: M_local( (&A == &B) ? new Cube<eT>(A) : nullptr )
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, M ( (&A == &B) ? (*M_local) : A )
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{
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arma_extra_debug_sigprint();
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}
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inline
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unwrap_cube_check(const Cube<eT>& A, const bool is_alias)
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: M_local( is_alias ? new Cube<eT>(A) : nullptr )
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, M ( is_alias ? (*M_local) : A )
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{
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arma_extra_debug_sigprint();
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}
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inline
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~unwrap_cube_check()
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{
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arma_extra_debug_sigprint();
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if(M_local) { delete M_local; }
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}
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// the order below is important
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const Cube<eT>* M_local;
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const Cube<eT>& M;
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};
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//! @}
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