541 lines
12 KiB
C++
541 lines
12 KiB
C++
// SPDX-License-Identifier: Apache-2.0
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//
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// 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 operator_plus
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//! @{
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//! unary plus operation (does nothing, but is required for completeness)
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template<typename T1>
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arma_inline
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typename enable_if2< is_arma_type<T1>::value, const T1& >::result
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operator+
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(const T1& X)
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{
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arma_extra_debug_sigprint();
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return X;
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}
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//! Base + scalar
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template<typename T1>
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arma_inline
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typename enable_if2< is_arma_type<T1>::value, const eOp<T1, eop_scalar_plus> >::result
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operator+
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(const T1& X, const typename T1::elem_type k)
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{
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arma_extra_debug_sigprint();
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return eOp<T1, eop_scalar_plus>(X, k);
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}
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//! scalar + Base
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template<typename T1>
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arma_inline
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typename enable_if2< is_arma_type<T1>::value, const eOp<T1, eop_scalar_plus> >::result
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operator+
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(const typename T1::elem_type k, const T1& X)
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{
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arma_extra_debug_sigprint();
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return eOp<T1, eop_scalar_plus>(X, k); // NOTE: order is swapped
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}
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//! non-complex Base + complex scalar
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template<typename T1>
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arma_inline
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typename
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enable_if2
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<
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(is_arma_type<T1>::value && is_cx<typename T1::elem_type>::no),
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const mtOp<typename std::complex<typename T1::pod_type>, T1, op_cx_scalar_plus>
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>::result
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operator+
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(
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const T1& X,
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const std::complex<typename T1::pod_type>& k
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)
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{
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arma_extra_debug_sigprint();
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return mtOp<typename std::complex<typename T1::pod_type>, T1, op_cx_scalar_plus>('j', X, k);
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}
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//! complex scalar + non-complex Base
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template<typename T1>
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arma_inline
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typename
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enable_if2
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<
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(is_arma_type<T1>::value && is_cx<typename T1::elem_type>::no),
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const mtOp<typename std::complex<typename T1::pod_type>, T1, op_cx_scalar_plus>
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>::result
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operator+
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(
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const std::complex<typename T1::pod_type>& k,
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const T1& X
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)
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{
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arma_extra_debug_sigprint();
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return mtOp<typename std::complex<typename T1::pod_type>, T1, op_cx_scalar_plus>('j', X, k); // NOTE: order is swapped
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}
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//! addition of user-accessible Armadillo objects with same element type
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template<typename T1, typename T2>
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arma_inline
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typename
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enable_if2
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<
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is_arma_type<T1>::value && is_arma_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::value,
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const eGlue<T1, T2, eglue_plus>
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>::result
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operator+
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(
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const T1& X,
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const T2& Y
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)
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{
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arma_extra_debug_sigprint();
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return eGlue<T1, T2, eglue_plus>(X, Y);
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}
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//! addition of user-accessible Armadillo objects with different element types
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template<typename T1, typename T2>
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inline
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typename
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enable_if2
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<
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(is_arma_type<T1>::value && is_arma_type<T2>::value && (is_same_type<typename T1::elem_type, typename T2::elem_type>::no)),
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const mtGlue<typename promote_type<typename T1::elem_type, typename T2::elem_type>::result, T1, T2, glue_mixed_plus>
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>::result
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operator+
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(
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const T1& X,
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const T2& Y
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)
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{
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arma_extra_debug_sigprint();
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typedef typename T1::elem_type eT1;
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typedef typename T2::elem_type eT2;
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typedef typename promote_type<eT1,eT2>::result out_eT;
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promote_type<eT1,eT2>::check();
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return mtGlue<out_eT, T1, T2, glue_mixed_plus>( X, Y );
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}
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//! addition of two sparse objects
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template<typename T1, typename T2>
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inline
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typename
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enable_if2
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<
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(is_arma_sparse_type<T1>::value && is_arma_sparse_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::value),
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SpGlue<T1,T2,spglue_plus>
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>::result
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operator+
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(
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const T1& x,
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const T2& y
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)
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{
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arma_extra_debug_sigprint();
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return SpGlue<T1,T2,spglue_plus>(x, y);
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}
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//! addition of one dense and one sparse object
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template<typename T1, typename T2>
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inline
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typename
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enable_if2
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<
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(is_arma_type<T1>::value && is_arma_sparse_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::value),
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Mat<typename T1::elem_type>
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>::result
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operator+
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(
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const T1& x,
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const T2& y
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)
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{
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arma_extra_debug_sigprint();
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Mat<typename T1::elem_type> result(x);
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const SpProxy<T2> pb(y);
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arma_debug_assert_same_size( result.n_rows, result.n_cols, pb.get_n_rows(), pb.get_n_cols(), "addition" );
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typename SpProxy<T2>::const_iterator_type it = pb.begin();
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typename SpProxy<T2>::const_iterator_type it_end = pb.end();
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while(it != it_end)
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{
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result.at(it.row(), it.col()) += (*it);
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++it;
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}
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return result;
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}
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//! addition of one sparse and one dense object
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template<typename T1, typename T2>
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inline
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typename
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enable_if2
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<
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(is_arma_sparse_type<T1>::value && is_arma_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::value),
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Mat<typename T1::elem_type>
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>::result
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operator+
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(
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const T1& x,
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const T2& y
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)
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{
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arma_extra_debug_sigprint();
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const SpProxy<T1> pa(x);
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Mat<typename T1::elem_type> result(y);
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arma_debug_assert_same_size( pa.get_n_rows(), pa.get_n_cols(), result.n_rows, result.n_cols, "addition" );
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typename SpProxy<T1>::const_iterator_type it = pa.begin();
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typename SpProxy<T1>::const_iterator_type it_end = pa.end();
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while(it != it_end)
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{
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result.at(it.row(), it.col()) += (*it);
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++it;
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}
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return result;
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}
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//! addition of two sparse objects with different element types
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template<typename T1, typename T2>
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inline
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typename
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enable_if2
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<
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(is_arma_sparse_type<T1>::value && is_arma_sparse_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::no),
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const mtSpGlue< typename promote_type<typename T1::elem_type, typename T2::elem_type>::result, T1, T2, spglue_plus_mixed >
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>::result
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operator+
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(
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const T1& X,
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const T2& Y
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)
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{
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arma_extra_debug_sigprint();
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typedef typename T1::elem_type eT1;
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typedef typename T2::elem_type eT2;
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typedef typename promote_type<eT1,eT2>::result out_eT;
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promote_type<eT1,eT2>::check();
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return mtSpGlue<out_eT, T1, T2, spglue_plus_mixed>( X, Y );
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}
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//! addition of sparse and non-sparse objects with different element types
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template<typename T1, typename T2>
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inline
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typename
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enable_if2
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<
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(is_arma_type<T1>::value && is_arma_sparse_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::no),
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Mat< typename promote_type<typename T1::elem_type, typename T2::elem_type>::result >
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>::result
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operator+
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(
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const T1& x,
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const T2& y
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)
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{
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arma_extra_debug_sigprint();
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Mat< typename promote_type<typename T1::elem_type, typename T2::elem_type>::result > out;
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spglue_plus_mixed::dense_plus_sparse(out, x, y);
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return out;
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}
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//! addition of sparse and non-sparse objects with different element types
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template<typename T1, typename T2>
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inline
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typename
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enable_if2
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<
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(is_arma_sparse_type<T1>::value && is_arma_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::no),
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Mat< typename promote_type<typename T1::elem_type, typename T2::elem_type>::result >
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>::result
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operator+
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(
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const T1& x,
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const T2& y
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)
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{
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arma_extra_debug_sigprint();
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Mat< typename promote_type<typename T1::elem_type, typename T2::elem_type>::result > out;
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// Just call the other order (these operations are commutative)
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// TODO: if there is a matrix size mismatch, the debug assert will print the matrix sizes in wrong order
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spglue_plus_mixed::dense_plus_sparse(out, y, x);
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return out;
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}
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//! addition of sparse object with scalar
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template<typename T1>
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inline
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typename enable_if2< is_arma_sparse_type<T1>::value, const SpToDOp<T1, op_sp_plus> >::result
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operator+
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(
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const T1& X,
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const typename T1::elem_type k
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)
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{
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arma_extra_debug_sigprint();
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return SpToDOp<T1, op_sp_plus>(X, k);
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}
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template<typename T1>
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inline
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typename enable_if2< is_arma_sparse_type<T1>::value, const SpToDOp<T1, op_sp_plus> >::result
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operator+
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(
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const typename T1::elem_type k,
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const T1& X
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)
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{
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arma_extra_debug_sigprint();
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return SpToDOp<T1, op_sp_plus>(X, k); // NOTE: swapped order
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}
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// TODO: this is an uncommon use case; remove?
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//! multiple applications of add/subtract scalars can be condensed
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template<typename T1, typename op_type>
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inline
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typename
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enable_if2
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<
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(is_arma_sparse_type<T1>::value &&
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(is_same_type<op_type, op_sp_plus>::value ||
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is_same_type<op_type, op_sp_minus_post>::value)),
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const SpToDOp<T1, op_sp_plus>
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>::result
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operator+
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(
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const SpToDOp<T1, op_type>& x,
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const typename T1::elem_type k
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)
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{
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arma_extra_debug_sigprint();
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const typename T1::elem_type aux = (is_same_type<op_type, op_sp_plus>::value) ? x.aux : -x.aux;
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return SpToDOp<T1, op_sp_plus>(x.m, aux + k);
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}
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// TODO: this is an uncommon use case; remove?
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//! multiple applications of add/subtract scalars can be condensed
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template<typename T1, typename op_type>
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inline
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typename
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enable_if2
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<
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(is_arma_sparse_type<T1>::value &&
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is_same_type<op_type, op_sp_minus_pre>::value),
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const SpToDOp<T1, op_sp_minus_pre>
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>::result
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operator+
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(
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const SpToDOp<T1, op_type>& x,
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const typename T1::elem_type k
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)
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{
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arma_extra_debug_sigprint();
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return SpToDOp<T1, op_sp_minus_pre>(x.m, x.aux + k);
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}
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// TODO: this is an uncommon use case; remove?
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//! multiple applications of add/subtract scalars can be condensed
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template<typename T1, typename op_type>
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inline
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typename
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enable_if2
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<
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(is_arma_sparse_type<T1>::value &&
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(is_same_type<op_type, op_sp_plus>::value ||
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is_same_type<op_type, op_sp_minus_post>::value)),
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const SpToDOp<T1, op_sp_plus>
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>::result
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operator+
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(
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const typename T1::elem_type k,
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const SpToDOp<T1, op_type>& x
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)
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{
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arma_extra_debug_sigprint();
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const typename T1::elem_type aux = (is_same_type<op_type, op_sp_plus>::value) ? x.aux : -x.aux;
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return SpToDOp<T1, op_sp_plus>(x.m, aux + k);
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}
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// TODO: this is an uncommon use case; remove?
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//! multiple applications of add/subtract scalars can be condensed
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template<typename T1, typename op_type>
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inline
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typename
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enable_if2
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<
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(is_arma_sparse_type<T1>::value &&
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is_same_type<op_type, op_sp_minus_pre>::value),
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const SpToDOp<T1, op_sp_minus_pre>
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>::result
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operator+
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(
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const typename T1::elem_type k,
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const SpToDOp<T1, op_type>& x
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)
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{
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arma_extra_debug_sigprint();
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return SpToDOp<T1, op_sp_minus_pre>(x.m, x.aux + k);
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}
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template<typename parent, unsigned int mode, typename T2>
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arma_inline
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Mat<typename parent::elem_type>
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operator+
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(
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const subview_each1<parent,mode>& X,
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const Base<typename parent::elem_type,T2>& Y
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)
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{
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arma_extra_debug_sigprint();
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return subview_each1_aux::operator_plus(X, Y.get_ref());
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}
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template<typename T1, typename parent, unsigned int mode>
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arma_inline
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Mat<typename parent::elem_type>
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operator+
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(
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const Base<typename parent::elem_type,T1>& X,
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const subview_each1<parent,mode>& Y
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)
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{
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arma_extra_debug_sigprint();
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return subview_each1_aux::operator_plus(Y, X.get_ref()); // NOTE: swapped order
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}
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template<typename parent, unsigned int mode, typename TB, typename T2>
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arma_inline
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Mat<typename parent::elem_type>
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operator+
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(
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const subview_each2<parent,mode,TB>& X,
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const Base<typename parent::elem_type,T2>& Y
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)
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{
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arma_extra_debug_sigprint();
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return subview_each2_aux::operator_plus(X, Y.get_ref());
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}
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template<typename T1, typename parent, unsigned int mode, typename TB>
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arma_inline
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Mat<typename parent::elem_type>
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operator+
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(
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const Base<typename parent::elem_type,T1>& X,
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const subview_each2<parent,mode,TB>& Y
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)
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{
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arma_extra_debug_sigprint();
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return subview_each2_aux::operator_plus(Y, X.get_ref()); // NOTE: swapped order
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}
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//! @}
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