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93 lines
2.5 KiB
93 lines
2.5 KiB
6 years ago
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//
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// Copyright (c) 2009--2010
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// Thomas Klimpel and Rutger ter Borg
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//
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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#ifndef BOOST_NUMERIC_BINDINGS_EIGEN_SPARSEMATRIX_HPP
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#define BOOST_NUMERIC_BINDINGS_EIGEN_SPARSEMATRIX_HPP
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#include <boost/numeric/bindings/detail/adaptor.hpp>
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#include <boost/numeric/bindings/detail/copy_const.hpp>
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#include <Eigen/Sparse>
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namespace boost {
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namespace numeric {
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namespace bindings {
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namespace detail {
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template< int Value >
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struct eigen_data_order {
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typedef typename mpl::if_<
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mpl::bool_< Value & Eigen::RowMajorBit >,
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tag::row_major,
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tag::column_major
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>::type type;
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};
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template< typename T, int Flags, typename Id, typename Enable >
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struct adaptor< Eigen::SparseMatrix< T, Flags >, Id, Enable > {
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typedef typename copy_const< Id, T >::type value_type;
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typedef typename copy_const<
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Id,
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//??? (Sorry, couldn't find it. Maybe fix it later.)
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std::ptrdiff_t
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>::type index_type;
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typedef typename eigen_data_order< Flags >::type data_order;
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typedef mpl::map<
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mpl::pair< tag::value_type, value_type >,
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mpl::pair< tag::index_type, index_type >,
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mpl::pair< tag::entity, tag::matrix >,
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mpl::pair< tag::size_type<1>, std::ptrdiff_t >,
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mpl::pair< tag::size_type<2>, std::ptrdiff_t >,
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mpl::pair< tag::matrix_type, tag::general >,
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mpl::pair< tag::data_structure, tag::compressed_sparse >,
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mpl::pair< tag::data_order, data_order >,
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mpl::pair< tag::index_base, mpl::int_<0> >
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> property_map;
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static std::ptrdiff_t size1( const Id& id ) {
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return id.rows();
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}
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static std::ptrdiff_t size2( const Id& id ) {
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return id.cols();
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}
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static value_type* begin_value( Id& id ) {
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return id._valuePtr();
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}
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static value_type* end_value( Id& id ) {
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return id._valuePtr() + id.nonZeros();
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}
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static index_type* begin_compressed_index_major( Id& id ) {
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return id._outerIndexPtr();
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}
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static index_type* end_compressed_index_major( Id& id ) {
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return id._outerIndexPtr() + id.outerSize() + 1;
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}
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static index_type* begin_index_minor( Id& id ) {
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return id._innerIndexPtr();
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}
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static index_type* end_index_minor( Id& id ) {
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return id._innerIndexPtr() + id.nonZeros();
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}
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};
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} // namespace detail
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} // namespace bindings
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} // namespace numeric
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} // namespace boost
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#endif
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