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287 lines
13 KiB
287 lines
13 KiB
// |
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// Copyright (c) 2002--2010 |
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// Toon Knapen, Karl Meerbergen, Kresimir Fresl, |
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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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// THIS FILE IS AUTOMATICALLY GENERATED |
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// PLEASE DO NOT EDIT! |
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// |
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#ifndef BOOST_NUMERIC_BINDINGS_LAPACK_AUXILIARY_LAEBZ_HPP |
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#define BOOST_NUMERIC_BINDINGS_LAPACK_AUXILIARY_LAEBZ_HPP |
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#include <boost/assert.hpp> |
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#include <boost/numeric/bindings/begin.hpp> |
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#include <boost/numeric/bindings/detail/array.hpp> |
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#include <boost/numeric/bindings/is_column_major.hpp> |
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#include <boost/numeric/bindings/is_mutable.hpp> |
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#include <boost/numeric/bindings/lapack/workspace.hpp> |
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#include <boost/numeric/bindings/remove_imaginary.hpp> |
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#include <boost/numeric/bindings/size.hpp> |
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#include <boost/numeric/bindings/stride.hpp> |
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#include <boost/numeric/bindings/value_type.hpp> |
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#include <boost/static_assert.hpp> |
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#include <boost/type_traits/is_same.hpp> |
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#include <boost/type_traits/remove_const.hpp> |
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// |
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// The LAPACK-backend for laebz is the netlib-compatible backend. |
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// |
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#include <boost/numeric/bindings/lapack/detail/lapack.h> |
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#include <boost/numeric/bindings/lapack/detail/lapack_option.hpp> |
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namespace boost { |
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namespace numeric { |
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namespace bindings { |
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namespace lapack { |
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// |
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// The detail namespace contains value-type-overloaded functions that |
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// dispatch to the appropriate back-end LAPACK-routine. |
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// |
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namespace detail { |
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// |
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// Overloaded function for dispatching to |
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// * netlib-compatible LAPACK backend (the default), and |
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// * float value-type. |
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// |
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inline std::ptrdiff_t laebz( const fortran_int_t ijob, |
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const fortran_int_t nitmax, const fortran_int_t n, |
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const fortran_int_t mmax, const fortran_int_t minp, |
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const fortran_int_t nbmin, const float abstol, const float reltol, |
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const float pivmin, const float* d, const float* e, const float* e2, |
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fortran_int_t* nval, float* ab, float* c, fortran_int_t& mout, |
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fortran_int_t* nab, float* work, fortran_int_t* iwork ) { |
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fortran_int_t info(0); |
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LAPACK_SLAEBZ( &ijob, &nitmax, &n, &mmax, &minp, &nbmin, &abstol, &reltol, |
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&pivmin, d, e, e2, nval, ab, c, &mout, nab, work, iwork, &info ); |
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return info; |
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} |
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// |
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// Overloaded function for dispatching to |
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// * netlib-compatible LAPACK backend (the default), and |
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// * double value-type. |
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// |
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inline std::ptrdiff_t laebz( const fortran_int_t ijob, |
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const fortran_int_t nitmax, const fortran_int_t n, |
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const fortran_int_t mmax, const fortran_int_t minp, |
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const fortran_int_t nbmin, const double abstol, const double reltol, |
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const double pivmin, const double* d, const double* e, |
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const double* e2, fortran_int_t* nval, double* ab, double* c, |
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fortran_int_t& mout, fortran_int_t* nab, double* work, |
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fortran_int_t* iwork ) { |
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fortran_int_t info(0); |
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LAPACK_DLAEBZ( &ijob, &nitmax, &n, &mmax, &minp, &nbmin, &abstol, &reltol, |
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&pivmin, d, e, e2, nval, ab, c, &mout, nab, work, iwork, &info ); |
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return info; |
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} |
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} // namespace detail |
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// |
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// Value-type based template class. Use this class if you need a type |
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// for dispatching to laebz. |
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// |
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template< typename Value > |
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struct laebz_impl { |
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typedef Value value_type; |
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typedef typename remove_imaginary< Value >::type real_type; |
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// |
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// Static member function for user-defined workspaces, that |
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// * Deduces the required arguments for dispatching to LAPACK, and |
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// * Asserts that most arguments make sense. |
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// |
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template< typename VectorD, typename VectorE, typename VectorE2, |
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typename VectorNVAL, typename MatrixAB, typename VectorC, |
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typename MatrixNAB, typename WORK, typename IWORK > |
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static std::ptrdiff_t invoke( const fortran_int_t ijob, |
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const fortran_int_t nitmax, const fortran_int_t n, |
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const fortran_int_t minp, const fortran_int_t nbmin, |
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const real_type abstol, const real_type reltol, |
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const real_type pivmin, const VectorD& d, const VectorE& e, |
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const VectorE2& e2, VectorNVAL& nval, MatrixAB& ab, VectorC& c, |
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fortran_int_t& mout, MatrixNAB& nab, detail::workspace2< WORK, |
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IWORK > work ) { |
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namespace bindings = ::boost::numeric::bindings; |
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BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixAB >::value) ); |
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BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const< |
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typename bindings::value_type< VectorD >::type >::type, |
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typename remove_const< typename bindings::value_type< |
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VectorE >::type >::type >::value) ); |
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BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const< |
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typename bindings::value_type< VectorD >::type >::type, |
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typename remove_const< typename bindings::value_type< |
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VectorE2 >::type >::type >::value) ); |
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BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const< |
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typename bindings::value_type< VectorD >::type >::type, |
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typename remove_const< typename bindings::value_type< |
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MatrixAB >::type >::type >::value) ); |
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BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const< |
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typename bindings::value_type< VectorD >::type >::type, |
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typename remove_const< typename bindings::value_type< |
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VectorC >::type >::type >::value) ); |
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BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const< |
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typename bindings::value_type< VectorNVAL >::type >::type, |
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typename remove_const< typename bindings::value_type< |
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MatrixNAB >::type >::type >::value) ); |
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BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorNVAL >::value) ); |
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BOOST_STATIC_ASSERT( (bindings::is_mutable< MatrixAB >::value) ); |
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BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorC >::value) ); |
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BOOST_STATIC_ASSERT( (bindings::is_mutable< MatrixNAB >::value) ); |
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BOOST_ASSERT( bindings::size(d) >= n ); |
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BOOST_ASSERT( bindings::size(e) >= n ); |
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BOOST_ASSERT( bindings::size(e2) >= n ); |
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BOOST_ASSERT( bindings::size(work.select(fortran_int_t())) >= |
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min_size_iwork( bindings::stride_major(ab) )); |
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BOOST_ASSERT( bindings::size(work.select(real_type())) >= |
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min_size_work( bindings::stride_major(ab) )); |
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BOOST_ASSERT( bindings::size_minor(ab) == 1 || |
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bindings::stride_minor(ab) == 1 ); |
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return detail::laebz( ijob, nitmax, n, bindings::stride_major(ab), |
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minp, nbmin, abstol, reltol, pivmin, bindings::begin_value(d), |
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bindings::begin_value(e), bindings::begin_value(e2), |
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bindings::begin_value(nval), bindings::begin_value(ab), |
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bindings::begin_value(c), mout, bindings::begin_value(nab), |
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bindings::begin_value(work.select(real_type())), |
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bindings::begin_value(work.select(fortran_int_t())) ); |
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} |
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// |
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// Static member function that |
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// * Figures out the minimal workspace requirements, and passes |
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// the results to the user-defined workspace overload of the |
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// invoke static member function |
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// * Enables the unblocked algorithm (BLAS level 2) |
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// |
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template< typename VectorD, typename VectorE, typename VectorE2, |
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typename VectorNVAL, typename MatrixAB, typename VectorC, |
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typename MatrixNAB > |
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static std::ptrdiff_t invoke( const fortran_int_t ijob, |
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const fortran_int_t nitmax, const fortran_int_t n, |
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const fortran_int_t minp, const fortran_int_t nbmin, |
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const real_type abstol, const real_type reltol, |
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const real_type pivmin, const VectorD& d, const VectorE& e, |
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const VectorE2& e2, VectorNVAL& nval, MatrixAB& ab, VectorC& c, |
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fortran_int_t& mout, MatrixNAB& nab, minimal_workspace ) { |
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namespace bindings = ::boost::numeric::bindings; |
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bindings::detail::array< real_type > tmp_work( min_size_work( |
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bindings::stride_major(ab) ) ); |
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bindings::detail::array< fortran_int_t > tmp_iwork( |
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min_size_iwork( bindings::stride_major(ab) ) ); |
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return invoke( ijob, nitmax, n, minp, nbmin, abstol, reltol, pivmin, |
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d, e, e2, nval, ab, c, mout, nab, workspace( tmp_work, |
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tmp_iwork ) ); |
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} |
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// |
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// Static member function that |
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// * Figures out the optimal workspace requirements, and passes |
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// the results to the user-defined workspace overload of the |
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// invoke static member |
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// * Enables the blocked algorithm (BLAS level 3) |
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// |
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template< typename VectorD, typename VectorE, typename VectorE2, |
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typename VectorNVAL, typename MatrixAB, typename VectorC, |
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typename MatrixNAB > |
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static std::ptrdiff_t invoke( const fortran_int_t ijob, |
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const fortran_int_t nitmax, const fortran_int_t n, |
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const fortran_int_t minp, const fortran_int_t nbmin, |
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const real_type abstol, const real_type reltol, |
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const real_type pivmin, const VectorD& d, const VectorE& e, |
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const VectorE2& e2, VectorNVAL& nval, MatrixAB& ab, VectorC& c, |
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fortran_int_t& mout, MatrixNAB& nab, optimal_workspace ) { |
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namespace bindings = ::boost::numeric::bindings; |
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return invoke( ijob, nitmax, n, minp, nbmin, abstol, reltol, pivmin, |
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d, e, e2, nval, ab, c, mout, nab, minimal_workspace() ); |
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} |
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// |
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// Static member function that returns the minimum size of |
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// workspace-array work. |
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// |
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static std::ptrdiff_t min_size_work( const std::ptrdiff_t mmax ) { |
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return mmax; |
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} |
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// |
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// Static member function that returns the minimum size of |
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// workspace-array iwork. |
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// |
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static std::ptrdiff_t min_size_iwork( const std::ptrdiff_t mmax ) { |
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return mmax; |
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} |
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}; |
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// |
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// Functions for direct use. These functions are overloaded for temporaries, |
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// so that wrapped types can still be passed and used for write-access. In |
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// addition, if applicable, they are overloaded for user-defined workspaces. |
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// Calls to these functions are passed to the laebz_impl classes. In the |
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// documentation, most overloads are collapsed to avoid a large number of |
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// prototypes which are very similar. |
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// |
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// |
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// Overloaded function for laebz. Its overload differs for |
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// * User-defined workspace |
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// |
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template< typename VectorD, typename VectorE, typename VectorE2, |
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typename VectorNVAL, typename MatrixAB, typename VectorC, |
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typename MatrixNAB, typename Workspace > |
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inline typename boost::enable_if< detail::is_workspace< Workspace >, |
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std::ptrdiff_t >::type |
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laebz( const fortran_int_t ijob, const fortran_int_t nitmax, |
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const fortran_int_t n, const fortran_int_t minp, |
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const fortran_int_t nbmin, const typename remove_imaginary< |
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typename bindings::value_type< VectorD >::type >::type abstol, |
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const typename remove_imaginary< typename bindings::value_type< |
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VectorD >::type >::type reltol, const typename remove_imaginary< |
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typename bindings::value_type< VectorD >::type >::type pivmin, |
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const VectorD& d, const VectorE& e, const VectorE2& e2, |
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VectorNVAL& nval, MatrixAB& ab, VectorC& c, fortran_int_t& mout, |
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MatrixNAB& nab, Workspace work ) { |
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return laebz_impl< typename bindings::value_type< |
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VectorD >::type >::invoke( ijob, nitmax, n, minp, nbmin, abstol, |
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reltol, pivmin, d, e, e2, nval, ab, c, mout, nab, work ); |
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} |
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// |
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// Overloaded function for laebz. Its overload differs for |
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// * Default workspace-type (optimal) |
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// |
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template< typename VectorD, typename VectorE, typename VectorE2, |
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typename VectorNVAL, typename MatrixAB, typename VectorC, |
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typename MatrixNAB > |
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inline typename boost::disable_if< detail::is_workspace< MatrixNAB >, |
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std::ptrdiff_t >::type |
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laebz( const fortran_int_t ijob, const fortran_int_t nitmax, |
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const fortran_int_t n, const fortran_int_t minp, |
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const fortran_int_t nbmin, const typename remove_imaginary< |
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typename bindings::value_type< VectorD >::type >::type abstol, |
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const typename remove_imaginary< typename bindings::value_type< |
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VectorD >::type >::type reltol, const typename remove_imaginary< |
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typename bindings::value_type< VectorD >::type >::type pivmin, |
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const VectorD& d, const VectorE& e, const VectorE2& e2, |
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VectorNVAL& nval, MatrixAB& ab, VectorC& c, fortran_int_t& mout, |
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MatrixNAB& nab ) { |
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return laebz_impl< typename bindings::value_type< |
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VectorD >::type >::invoke( ijob, nitmax, n, minp, nbmin, abstol, |
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reltol, pivmin, d, e, e2, nval, ab, c, mout, nab, |
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optimal_workspace() ); |
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} |
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} // namespace lapack |
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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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