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// SPDX-License-Identifier: Apache-2.0
//
// Copyright 2008-2016 Conrad Sanderson (http://conradsanderson.id.au)
// Copyright 2008-2016 National ICT Australia (NICTA)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// ------------------------------------------------------------------------
//! \addtogroup op_sp_minus
//! @{
// Subtract a sparse object from a scalar; the output will be a dense object.
class op_sp_minus_pre
: public traits_op_passthru
{
public:
template<typename T1>
inline static void apply(Mat<typename T1::elem_type>& out, const SpToDOp<T1,op_sp_minus_pre>& in);
// force apply into sparse matrix
template<typename T1>
inline static void apply(SpMat<typename T1::elem_type>& out, const SpToDOp<T1,op_sp_minus_pre>& in);
// used for the optimization of sparse % (scalar - sparse)
template<typename eT, typename T2, typename T3>
inline static void apply_inside_schur(SpMat<eT>& out, const T2& x, const SpToDOp<T3, op_sp_minus_pre>& y);
// used for the optimization of sparse / (scalar - sparse)
template<typename eT, typename T2, typename T3>
inline static void apply_inside_div(SpMat<eT>& out, const T2& x, const SpToDOp<T3, op_sp_minus_pre>& y);
};
// Subtract a scalar from a sparse object; the output will be a dense object.
class op_sp_minus_post
: public traits_op_passthru
{
public:
template<typename T1>
inline static void apply(Mat<typename T1::elem_type>& out, const SpToDOp<T1,op_sp_minus_post>& in);
// force apply into sparse matrix
template<typename T1>
inline static void apply(SpMat<typename T1::elem_type>& out, const SpToDOp<T1,op_sp_minus_post>& in);
// used for the optimization of sparse % (sparse - scalar)
template<typename eT, typename T2, typename T3>
inline static void apply_inside_schur(SpMat<eT>& out, const T2& x, const SpToDOp<T3, op_sp_minus_post>& y);
// used for the optimization of sparse / (sparse - scalar)
template<typename eT, typename T2, typename T3>
inline static void apply_inside_div(SpMat<eT>& out, const T2& x, const SpToDOp<T3, op_sp_minus_post>& y);
};
//! @}
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