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Timed-Altarica-To-Fiacre-Tr…/sdk/boost/numeric/bindings/lapack/driver/ggsvd.hpp
Pierre Gaufillet 18eb3f6047 Initial commit.
2018-12-06 16:01:56 +01:00

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//
// Copyright (c) 2002--2010
// Toon Knapen, Karl Meerbergen, Kresimir Fresl,
// Thomas Klimpel and Rutger ter Borg
//
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// THIS FILE IS AUTOMATICALLY GENERATED
// PLEASE DO NOT EDIT!
//
#ifndef BOOST_NUMERIC_BINDINGS_LAPACK_DRIVER_GGSVD_HPP
#define BOOST_NUMERIC_BINDINGS_LAPACK_DRIVER_GGSVD_HPP
#include <boost/assert.hpp>
#include <boost/numeric/bindings/begin.hpp>
#include <boost/numeric/bindings/detail/array.hpp>
#include <boost/numeric/bindings/is_column_major.hpp>
#include <boost/numeric/bindings/is_complex.hpp>
#include <boost/numeric/bindings/is_mutable.hpp>
#include <boost/numeric/bindings/is_real.hpp>
#include <boost/numeric/bindings/lapack/workspace.hpp>
#include <boost/numeric/bindings/remove_imaginary.hpp>
#include <boost/numeric/bindings/size.hpp>
#include <boost/numeric/bindings/stride.hpp>
#include <boost/numeric/bindings/value_type.hpp>
#include <boost/static_assert.hpp>
#include <boost/type_traits/is_same.hpp>
#include <boost/type_traits/remove_const.hpp>
#include <boost/utility/enable_if.hpp>
//
// The LAPACK-backend for ggsvd is the netlib-compatible backend.
//
#include <boost/numeric/bindings/lapack/detail/lapack.h>
#include <boost/numeric/bindings/lapack/detail/lapack_option.hpp>
namespace boost {
namespace numeric {
namespace bindings {
namespace lapack {
//
// The detail namespace contains value-type-overloaded functions that
// dispatch to the appropriate back-end LAPACK-routine.
//
namespace detail {
//
// Overloaded function for dispatching to
// * netlib-compatible LAPACK backend (the default), and
// * float value-type.
//
inline std::ptrdiff_t ggsvd( const char jobu, const char jobv, const char jobq,
const fortran_int_t m, const fortran_int_t n, const fortran_int_t p,
fortran_int_t& k, fortran_int_t& l, float* a, const fortran_int_t lda,
float* b, const fortran_int_t ldb, float* alpha, float* beta,
float* u, const fortran_int_t ldu, float* v, const fortran_int_t ldv,
float* q, const fortran_int_t ldq, float* work,
fortran_int_t* iwork ) {
fortran_int_t info(0);
LAPACK_SGGSVD( &jobu, &jobv, &jobq, &m, &n, &p, &k, &l, a, &lda, b, &ldb,
alpha, beta, u, &ldu, v, &ldv, q, &ldq, work, iwork, &info );
return info;
}
//
// Overloaded function for dispatching to
// * netlib-compatible LAPACK backend (the default), and
// * double value-type.
//
inline std::ptrdiff_t ggsvd( const char jobu, const char jobv, const char jobq,
const fortran_int_t m, const fortran_int_t n, const fortran_int_t p,
fortran_int_t& k, fortran_int_t& l, double* a,
const fortran_int_t lda, double* b, const fortran_int_t ldb,
double* alpha, double* beta, double* u, const fortran_int_t ldu,
double* v, const fortran_int_t ldv, double* q,
const fortran_int_t ldq, double* work, fortran_int_t* iwork ) {
fortran_int_t info(0);
LAPACK_DGGSVD( &jobu, &jobv, &jobq, &m, &n, &p, &k, &l, a, &lda, b, &ldb,
alpha, beta, u, &ldu, v, &ldv, q, &ldq, work, iwork, &info );
return info;
}
//
// Overloaded function for dispatching to
// * netlib-compatible LAPACK backend (the default), and
// * complex<float> value-type.
//
inline std::ptrdiff_t ggsvd( const char jobu, const char jobv, const char jobq,
const fortran_int_t m, const fortran_int_t n, const fortran_int_t p,
fortran_int_t& k, fortran_int_t& l, std::complex<float>* a,
const fortran_int_t lda, std::complex<float>* b,
const fortran_int_t ldb, float* alpha, float* beta,
std::complex<float>* u, const fortran_int_t ldu,
std::complex<float>* v, const fortran_int_t ldv,
std::complex<float>* q, const fortran_int_t ldq,
std::complex<float>* work, float* rwork, fortran_int_t* iwork ) {
fortran_int_t info(0);
LAPACK_CGGSVD( &jobu, &jobv, &jobq, &m, &n, &p, &k, &l, a, &lda, b, &ldb,
alpha, beta, u, &ldu, v, &ldv, q, &ldq, work, rwork, iwork,
&info );
return info;
}
//
// Overloaded function for dispatching to
// * netlib-compatible LAPACK backend (the default), and
// * complex<double> value-type.
//
inline std::ptrdiff_t ggsvd( const char jobu, const char jobv, const char jobq,
const fortran_int_t m, const fortran_int_t n, const fortran_int_t p,
fortran_int_t& k, fortran_int_t& l, std::complex<double>* a,
const fortran_int_t lda, std::complex<double>* b,
const fortran_int_t ldb, double* alpha, double* beta,
std::complex<double>* u, const fortran_int_t ldu,
std::complex<double>* v, const fortran_int_t ldv,
std::complex<double>* q, const fortran_int_t ldq,
std::complex<double>* work, double* rwork, fortran_int_t* iwork ) {
fortran_int_t info(0);
LAPACK_ZGGSVD( &jobu, &jobv, &jobq, &m, &n, &p, &k, &l, a, &lda, b, &ldb,
alpha, beta, u, &ldu, v, &ldv, q, &ldq, work, rwork, iwork,
&info );
return info;
}
} // namespace detail
//
// Value-type based template class. Use this class if you need a type
// for dispatching to ggsvd.
//
template< typename Value, typename Enable = void >
struct ggsvd_impl {};
//
// This implementation is enabled if Value is a real type.
//
template< typename Value >
struct ggsvd_impl< Value, typename boost::enable_if< is_real< Value > >::type > {
typedef Value value_type;
typedef typename remove_imaginary< Value >::type real_type;
//
// Static member function for user-defined workspaces, that
// * Deduces the required arguments for dispatching to LAPACK, and
// * Asserts that most arguments make sense.
//
template< typename MatrixA, typename MatrixB, typename VectorALPHA,
typename VectorBETA, typename MatrixU, typename MatrixV,
typename MatrixQ, typename WORK, typename IWORK >
static std::ptrdiff_t invoke( const char jobu, const char jobv,
const char jobq, fortran_int_t& k, fortran_int_t& l,
MatrixA& a, MatrixB& b, VectorALPHA& alpha, VectorBETA& beta,
MatrixU& u, MatrixV& v, MatrixQ& q, detail::workspace2< WORK,
IWORK > work ) {
namespace bindings = ::boost::numeric::bindings;
BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixA >::value) );
BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixB >::value) );
BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixU >::value) );
BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixV >::value) );
BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixQ >::value) );
BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const<
typename bindings::value_type< MatrixA >::type >::type,
typename remove_const< typename bindings::value_type<
MatrixB >::type >::type >::value) );
BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const<
typename bindings::value_type< MatrixA >::type >::type,
typename remove_const< typename bindings::value_type<
VectorALPHA >::type >::type >::value) );
BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const<
typename bindings::value_type< MatrixA >::type >::type,
typename remove_const< typename bindings::value_type<
VectorBETA >::type >::type >::value) );
BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const<
typename bindings::value_type< MatrixA >::type >::type,
typename remove_const< typename bindings::value_type<
MatrixU >::type >::type >::value) );
BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const<
typename bindings::value_type< MatrixA >::type >::type,
typename remove_const< typename bindings::value_type<
MatrixV >::type >::type >::value) );
BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const<
typename bindings::value_type< MatrixA >::type >::type,
typename remove_const< typename bindings::value_type<
MatrixQ >::type >::type >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< MatrixA >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< MatrixB >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorALPHA >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorBETA >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< MatrixU >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< MatrixV >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< MatrixQ >::value) );
BOOST_ASSERT( bindings::size(alpha) >= bindings::size_column(a) );
BOOST_ASSERT( bindings::size(work.select(fortran_int_t())) >=
min_size_iwork( bindings::size_column(a) ));
BOOST_ASSERT( bindings::size(work.select(real_type())) >=
min_size_work( bindings::size_column(a),
bindings::size_row(a), bindings::size_row(b) ));
BOOST_ASSERT( bindings::size_column(a) >= 0 );
BOOST_ASSERT( bindings::size_minor(a) == 1 ||
bindings::stride_minor(a) == 1 );
BOOST_ASSERT( bindings::size_minor(b) == 1 ||
bindings::stride_minor(b) == 1 );
BOOST_ASSERT( bindings::size_minor(q) == 1 ||
bindings::stride_minor(q) == 1 );
BOOST_ASSERT( bindings::size_minor(u) == 1 ||
bindings::stride_minor(u) == 1 );
BOOST_ASSERT( bindings::size_minor(v) == 1 ||
bindings::stride_minor(v) == 1 );
BOOST_ASSERT( bindings::size_row(a) >= 0 );
BOOST_ASSERT( bindings::size_row(b) >= 0 );
BOOST_ASSERT( bindings::stride_major(a) >= std::max< std::ptrdiff_t >(1,
bindings::size_row(a)) );
BOOST_ASSERT( bindings::stride_major(b) >= std::max< std::ptrdiff_t >(1,
bindings::size_row(b)) );
BOOST_ASSERT( jobq == 'Q' || jobq == 'N' );
BOOST_ASSERT( jobu == 'U' || jobu == 'N' );
BOOST_ASSERT( jobv == 'V' || jobv == 'N' );
return detail::ggsvd( jobu, jobv, jobq, bindings::size_row(a),
bindings::size_column(a), bindings::size_row(b), k, l,
bindings::begin_value(a), bindings::stride_major(a),
bindings::begin_value(b), bindings::stride_major(b),
bindings::begin_value(alpha), bindings::begin_value(beta),
bindings::begin_value(u), bindings::stride_major(u),
bindings::begin_value(v), bindings::stride_major(v),
bindings::begin_value(q), bindings::stride_major(q),
bindings::begin_value(work.select(real_type())),
bindings::begin_value(work.select(fortran_int_t())) );
}
//
// Static member function that
// * Figures out the minimal workspace requirements, and passes
// the results to the user-defined workspace overload of the
// invoke static member function
// * Enables the unblocked algorithm (BLAS level 2)
//
template< typename MatrixA, typename MatrixB, typename VectorALPHA,
typename VectorBETA, typename MatrixU, typename MatrixV,
typename MatrixQ >
static std::ptrdiff_t invoke( const char jobu, const char jobv,
const char jobq, fortran_int_t& k, fortran_int_t& l,
MatrixA& a, MatrixB& b, VectorALPHA& alpha, VectorBETA& beta,
MatrixU& u, MatrixV& v, MatrixQ& q, minimal_workspace ) {
namespace bindings = ::boost::numeric::bindings;
bindings::detail::array< real_type > tmp_work( min_size_work(
bindings::size_column(a), bindings::size_row(a),
bindings::size_row(b) ) );
bindings::detail::array< fortran_int_t > tmp_iwork(
min_size_iwork( bindings::size_column(a) ) );
return invoke( jobu, jobv, jobq, k, l, a, b, alpha, beta, u, v, q,
workspace( tmp_work, tmp_iwork ) );
}
//
// Static member function that
// * Figures out the optimal workspace requirements, and passes
// the results to the user-defined workspace overload of the
// invoke static member
// * Enables the blocked algorithm (BLAS level 3)
//
template< typename MatrixA, typename MatrixB, typename VectorALPHA,
typename VectorBETA, typename MatrixU, typename MatrixV,
typename MatrixQ >
static std::ptrdiff_t invoke( const char jobu, const char jobv,
const char jobq, fortran_int_t& k, fortran_int_t& l,
MatrixA& a, MatrixB& b, VectorALPHA& alpha, VectorBETA& beta,
MatrixU& u, MatrixV& v, MatrixQ& q, optimal_workspace ) {
namespace bindings = ::boost::numeric::bindings;
return invoke( jobu, jobv, jobq, k, l, a, b, alpha, beta, u, v, q,
minimal_workspace() );
}
//
// Static member function that returns the minimum size of
// workspace-array work.
//
static std::ptrdiff_t min_size_work( const std::ptrdiff_t n,
const std::ptrdiff_t m, const std::ptrdiff_t p ) {
return std::max< std::ptrdiff_t >(3*n,std::max< std::ptrdiff_t >(m,p))+n;
}
//
// Static member function that returns the minimum size of
// workspace-array iwork.
//
static std::ptrdiff_t min_size_iwork( const std::ptrdiff_t n ) {
return n;
}
};
//
// This implementation is enabled if Value is a complex type.
//
template< typename Value >
struct ggsvd_impl< Value, typename boost::enable_if< is_complex< Value > >::type > {
typedef Value value_type;
typedef typename remove_imaginary< Value >::type real_type;
//
// Static member function for user-defined workspaces, that
// * Deduces the required arguments for dispatching to LAPACK, and
// * Asserts that most arguments make sense.
//
template< typename MatrixA, typename MatrixB, typename VectorALPHA,
typename VectorBETA, typename MatrixU, typename MatrixV,
typename MatrixQ, typename WORK, typename RWORK, typename IWORK >
static std::ptrdiff_t invoke( const char jobu, const char jobv,
const char jobq, fortran_int_t& k, fortran_int_t& l,
MatrixA& a, MatrixB& b, VectorALPHA& alpha, VectorBETA& beta,
MatrixU& u, MatrixV& v, MatrixQ& q, detail::workspace3< WORK,
RWORK, IWORK > work ) {
namespace bindings = ::boost::numeric::bindings;
BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixA >::value) );
BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixB >::value) );
BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixU >::value) );
BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixV >::value) );
BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixQ >::value) );
BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const<
typename bindings::value_type< VectorALPHA >::type >::type,
typename remove_const< typename bindings::value_type<
VectorBETA >::type >::type >::value) );
BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const<
typename bindings::value_type< MatrixA >::type >::type,
typename remove_const< typename bindings::value_type<
MatrixB >::type >::type >::value) );
BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const<
typename bindings::value_type< MatrixA >::type >::type,
typename remove_const< typename bindings::value_type<
MatrixU >::type >::type >::value) );
BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const<
typename bindings::value_type< MatrixA >::type >::type,
typename remove_const< typename bindings::value_type<
MatrixV >::type >::type >::value) );
BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const<
typename bindings::value_type< MatrixA >::type >::type,
typename remove_const< typename bindings::value_type<
MatrixQ >::type >::type >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< MatrixA >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< MatrixB >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorALPHA >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorBETA >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< MatrixU >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< MatrixV >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< MatrixQ >::value) );
BOOST_ASSERT( bindings::size(alpha) >= bindings::size_column(a) );
BOOST_ASSERT( bindings::size(work.select(fortran_int_t())) >=
min_size_iwork( bindings::size_column(a) ));
BOOST_ASSERT( bindings::size(work.select(real_type())) >=
min_size_rwork( bindings::size_column(a) ));
BOOST_ASSERT( bindings::size(work.select(value_type())) >=
min_size_work( bindings::size_column(a),
bindings::size_row(a), bindings::size_row(b) ));
BOOST_ASSERT( bindings::size_column(a) >= 0 );
BOOST_ASSERT( bindings::size_minor(a) == 1 ||
bindings::stride_minor(a) == 1 );
BOOST_ASSERT( bindings::size_minor(b) == 1 ||
bindings::stride_minor(b) == 1 );
BOOST_ASSERT( bindings::size_minor(q) == 1 ||
bindings::stride_minor(q) == 1 );
BOOST_ASSERT( bindings::size_minor(u) == 1 ||
bindings::stride_minor(u) == 1 );
BOOST_ASSERT( bindings::size_minor(v) == 1 ||
bindings::stride_minor(v) == 1 );
BOOST_ASSERT( bindings::size_row(a) >= 0 );
BOOST_ASSERT( bindings::size_row(b) >= 0 );
BOOST_ASSERT( bindings::stride_major(a) >= std::max< std::ptrdiff_t >(1,
bindings::size_row(a)) );
BOOST_ASSERT( bindings::stride_major(b) >= std::max< std::ptrdiff_t >(1,
bindings::size_row(b)) );
BOOST_ASSERT( jobq == 'Q' || jobq == 'N' );
BOOST_ASSERT( jobu == 'U' || jobu == 'N' );
BOOST_ASSERT( jobv == 'V' || jobv == 'N' );
return detail::ggsvd( jobu, jobv, jobq, bindings::size_row(a),
bindings::size_column(a), bindings::size_row(b), k, l,
bindings::begin_value(a), bindings::stride_major(a),
bindings::begin_value(b), bindings::stride_major(b),
bindings::begin_value(alpha), bindings::begin_value(beta),
bindings::begin_value(u), bindings::stride_major(u),
bindings::begin_value(v), bindings::stride_major(v),
bindings::begin_value(q), bindings::stride_major(q),
bindings::begin_value(work.select(value_type())),
bindings::begin_value(work.select(real_type())),
bindings::begin_value(work.select(fortran_int_t())) );
}
//
// Static member function that
// * Figures out the minimal workspace requirements, and passes
// the results to the user-defined workspace overload of the
// invoke static member function
// * Enables the unblocked algorithm (BLAS level 2)
//
template< typename MatrixA, typename MatrixB, typename VectorALPHA,
typename VectorBETA, typename MatrixU, typename MatrixV,
typename MatrixQ >
static std::ptrdiff_t invoke( const char jobu, const char jobv,
const char jobq, fortran_int_t& k, fortran_int_t& l,
MatrixA& a, MatrixB& b, VectorALPHA& alpha, VectorBETA& beta,
MatrixU& u, MatrixV& v, MatrixQ& q, minimal_workspace ) {
namespace bindings = ::boost::numeric::bindings;
bindings::detail::array< value_type > tmp_work( min_size_work(
bindings::size_column(a), bindings::size_row(a),
bindings::size_row(b) ) );
bindings::detail::array< real_type > tmp_rwork( min_size_rwork(
bindings::size_column(a) ) );
bindings::detail::array< fortran_int_t > tmp_iwork(
min_size_iwork( bindings::size_column(a) ) );
return invoke( jobu, jobv, jobq, k, l, a, b, alpha, beta, u, v, q,
workspace( tmp_work, tmp_rwork, tmp_iwork ) );
}
//
// Static member function that
// * Figures out the optimal workspace requirements, and passes
// the results to the user-defined workspace overload of the
// invoke static member
// * Enables the blocked algorithm (BLAS level 3)
//
template< typename MatrixA, typename MatrixB, typename VectorALPHA,
typename VectorBETA, typename MatrixU, typename MatrixV,
typename MatrixQ >
static std::ptrdiff_t invoke( const char jobu, const char jobv,
const char jobq, fortran_int_t& k, fortran_int_t& l,
MatrixA& a, MatrixB& b, VectorALPHA& alpha, VectorBETA& beta,
MatrixU& u, MatrixV& v, MatrixQ& q, optimal_workspace ) {
namespace bindings = ::boost::numeric::bindings;
return invoke( jobu, jobv, jobq, k, l, a, b, alpha, beta, u, v, q,
minimal_workspace() );
}
//
// Static member function that returns the minimum size of
// workspace-array work.
//
static std::ptrdiff_t min_size_work( const std::ptrdiff_t n,
const std::ptrdiff_t m, const std::ptrdiff_t p ) {
return std::max< std::ptrdiff_t >(3*n,std::max< std::ptrdiff_t >(m,p))+n;
}
//
// Static member function that returns the minimum size of
// workspace-array rwork.
//
static std::ptrdiff_t min_size_rwork( const std::ptrdiff_t n ) {
return 2*n;
}
//
// Static member function that returns the minimum size of
// workspace-array iwork.
//
static std::ptrdiff_t min_size_iwork( const std::ptrdiff_t n ) {
return n;
}
};
//
// Functions for direct use. These functions are overloaded for temporaries,
// so that wrapped types can still be passed and used for write-access. In
// addition, if applicable, they are overloaded for user-defined workspaces.
// Calls to these functions are passed to the ggsvd_impl classes. In the
// documentation, most overloads are collapsed to avoid a large number of
// prototypes which are very similar.
//
//
// Overloaded function for ggsvd. Its overload differs for
// * User-defined workspace
//
template< typename MatrixA, typename MatrixB, typename VectorALPHA,
typename VectorBETA, typename MatrixU, typename MatrixV,
typename MatrixQ, typename Workspace >
inline typename boost::enable_if< detail::is_workspace< Workspace >,
std::ptrdiff_t >::type
ggsvd( const char jobu, const char jobv, const char jobq,
fortran_int_t& k, fortran_int_t& l, MatrixA& a, MatrixB& b,
VectorALPHA& alpha, VectorBETA& beta, MatrixU& u, MatrixV& v,
MatrixQ& q, Workspace work ) {
return ggsvd_impl< typename bindings::value_type<
MatrixA >::type >::invoke( jobu, jobv, jobq, k, l, a, b, alpha,
beta, u, v, q, work );
}
//
// Overloaded function for ggsvd. Its overload differs for
// * Default workspace-type (optimal)
//
template< typename MatrixA, typename MatrixB, typename VectorALPHA,
typename VectorBETA, typename MatrixU, typename MatrixV,
typename MatrixQ >
inline typename boost::disable_if< detail::is_workspace< MatrixQ >,
std::ptrdiff_t >::type
ggsvd( const char jobu, const char jobv, const char jobq,
fortran_int_t& k, fortran_int_t& l, MatrixA& a, MatrixB& b,
VectorALPHA& alpha, VectorBETA& beta, MatrixU& u, MatrixV& v,
MatrixQ& q ) {
return ggsvd_impl< typename bindings::value_type<
MatrixA >::type >::invoke( jobu, jobv, jobq, k, l, a, b, alpha,
beta, u, v, q, optimal_workspace() );
}
} // namespace lapack
} // namespace bindings
} // namespace numeric
} // namespace boost
#endif
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