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288 lines
13 KiB
288 lines
13 KiB
6 years ago
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//
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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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