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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_COMPUTATIONAL_UNMBR_HPP
#define BOOST_NUMERIC_BINDINGS_LAPACK_COMPUTATIONAL_UNMBR_HPP
#include <boost/assert.hpp>
#include <boost/numeric/bindings/begin.hpp>
#include <boost/numeric/bindings/data_order.hpp>
#include <boost/numeric/bindings/detail/array.hpp>
#include <boost/numeric/bindings/detail/if_left.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/traits/detail/utils.hpp>
#include <boost/numeric/bindings/trans_tag.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 unmbr 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.
//
template< typename Side, typename Trans >
inline std::ptrdiff_t unmbr( const char vect, const Side, const Trans,
const fortran_int_t m, const fortran_int_t n, const fortran_int_t k,
const float* a, const fortran_int_t lda, const float* tau, float* c,
const fortran_int_t ldc, float* work, const fortran_int_t lwork ) {
fortran_int_t info(0);
LAPACK_SORMBR( &vect, &lapack_option< Side >::value, &lapack_option<
Trans >::value, &m, &n, &k, a, &lda, tau, c, &ldc, work, &lwork,
&info );
return info;
}
//
// Overloaded function for dispatching to
// * netlib-compatible LAPACK backend (the default), and
// * double value-type.
//
template< typename Side, typename Trans >
inline std::ptrdiff_t unmbr( const char vect, const Side, const Trans,
const fortran_int_t m, const fortran_int_t n, const fortran_int_t k,
const double* a, const fortran_int_t lda, const double* tau,
double* c, const fortran_int_t ldc, double* work,
const fortran_int_t lwork ) {
fortran_int_t info(0);
LAPACK_DORMBR( &vect, &lapack_option< Side >::value, &lapack_option<
Trans >::value, &m, &n, &k, a, &lda, tau, c, &ldc, work, &lwork,
&info );
return info;
}
//
// Overloaded function for dispatching to
// * netlib-compatible LAPACK backend (the default), and
// * complex<float> value-type.
//
template< typename Side, typename Trans >
inline std::ptrdiff_t unmbr( const char vect, const Side, const Trans,
const fortran_int_t m, const fortran_int_t n, const fortran_int_t k,
const std::complex<float>* a, const fortran_int_t lda,
const std::complex<float>* tau, std::complex<float>* c,
const fortran_int_t ldc, std::complex<float>* work,
const fortran_int_t lwork ) {
fortran_int_t info(0);
LAPACK_CUNMBR( &vect, &lapack_option< Side >::value, &lapack_option<
Trans >::value, &m, &n, &k, a, &lda, tau, c, &ldc, work, &lwork,
&info );
return info;
}
//
// Overloaded function for dispatching to
// * netlib-compatible LAPACK backend (the default), and
// * complex<double> value-type.
//
template< typename Side, typename Trans >
inline std::ptrdiff_t unmbr( const char vect, const Side, const Trans,
const fortran_int_t m, const fortran_int_t n, const fortran_int_t k,
const std::complex<double>* a, const fortran_int_t lda,
const std::complex<double>* tau, std::complex<double>* c,
const fortran_int_t ldc, std::complex<double>* work,
const fortran_int_t lwork ) {
fortran_int_t info(0);
LAPACK_ZUNMBR( &vect, &lapack_option< Side >::value, &lapack_option<
Trans >::value, &m, &n, &k, a, &lda, tau, c, &ldc, work, &lwork,
&info );
return info;
}
} // namespace detail
//
// Value-type based template class. Use this class if you need a type
// for dispatching to unmbr.
//
template< typename Value, typename Enable = void >
struct unmbr_impl {};
//
// This implementation is enabled if Value is a real type.
//
template< typename Value >
struct unmbr_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 Side, typename MatrixA, typename VectorTAU,
typename MatrixC, typename WORK >
static std::ptrdiff_t invoke( const char vect, const Side side,
const MatrixA& a, const VectorTAU& tau, MatrixC& c,
detail::workspace1< WORK > work ) {
namespace bindings = ::boost::numeric::bindings;
typedef typename result_of::data_order< MatrixC >::type order;
typedef typename result_of::trans_tag< MatrixA, order >::type trans;
BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const<
typename bindings::value_type< MatrixA >::type >::type,
typename remove_const< typename bindings::value_type<
VectorTAU >::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<
MatrixC >::type >::type >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< MatrixC >::value) );
BOOST_ASSERT( bindings::size(tau) >= 0 );
BOOST_ASSERT( bindings::size(work.select(real_type())) >=
min_size_work( side, bindings::size_row(c),
bindings::size_column(c) ));
BOOST_ASSERT( bindings::size_column(c) >= 0 );
BOOST_ASSERT( bindings::size_minor(a) == 1 ||
bindings::stride_minor(a) == 1 );
BOOST_ASSERT( bindings::size_minor(c) == 1 ||
bindings::stride_minor(c) == 1 );
BOOST_ASSERT( bindings::size_row(c) >= 0 );
BOOST_ASSERT( bindings::stride_major(c) >= std::max< std::ptrdiff_t >(1,
bindings::size_row(c)) );
BOOST_ASSERT( vect == 'Q' || vect == 'P' );
return detail::unmbr( vect, side, trans(), bindings::size_row(c),
bindings::size_column(c), bindings::size(tau),
bindings::begin_value(a), bindings::stride_major(a),
bindings::begin_value(tau), bindings::begin_value(c),
bindings::stride_major(c),
bindings::begin_value(work.select(real_type())),
bindings::size(work.select(real_type())) );
}
//
// 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 Side, typename MatrixA, typename VectorTAU,
typename MatrixC >
static std::ptrdiff_t invoke( const char vect, const Side side,
const MatrixA& a, const VectorTAU& tau, MatrixC& c,
minimal_workspace ) {
namespace bindings = ::boost::numeric::bindings;
typedef typename result_of::data_order< MatrixC >::type order;
typedef typename result_of::trans_tag< MatrixA, order >::type trans;
bindings::detail::array< real_type > tmp_work( min_size_work( side,
bindings::size_row(c), bindings::size_column(c) ) );
return invoke( vect, side, a, tau, c, workspace( tmp_work ) );
}
//
// 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 Side, typename MatrixA, typename VectorTAU,
typename MatrixC >
static std::ptrdiff_t invoke( const char vect, const Side side,
const MatrixA& a, const VectorTAU& tau, MatrixC& c,
optimal_workspace ) {
namespace bindings = ::boost::numeric::bindings;
typedef typename result_of::data_order< MatrixC >::type order;
typedef typename result_of::trans_tag< MatrixA, order >::type trans;
real_type opt_size_work;
detail::unmbr( vect, side, trans(), bindings::size_row(c),
bindings::size_column(c), bindings::size(tau),
bindings::begin_value(a), bindings::stride_major(a),
bindings::begin_value(tau), bindings::begin_value(c),
bindings::stride_major(c), &opt_size_work, -1 );
bindings::detail::array< real_type > tmp_work(
traits::detail::to_int( opt_size_work ) );
return invoke( vect, side, a, tau, c, workspace( tmp_work ) );
}
//
// Static member function that returns the minimum size of
// workspace-array work.
//
template< typename Side >
static std::ptrdiff_t min_size_work( const Side side,
const std::ptrdiff_t m, const std::ptrdiff_t n ) {
return std::max< std::ptrdiff_t >( 1, bindings::detail::if_left( side,
n, m ) );
}
};
//
// This implementation is enabled if Value is a complex type.
//
template< typename Value >
struct unmbr_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 Side, typename MatrixA, typename VectorTAU,
typename MatrixC, typename WORK >
static std::ptrdiff_t invoke( const char vect, const Side side,
const fortran_int_t k, const MatrixA& a, const VectorTAU& tau,
MatrixC& c, detail::workspace1< WORK > work ) {
namespace bindings = ::boost::numeric::bindings;
typedef typename result_of::data_order< MatrixC >::type order;
typedef typename result_of::trans_tag< MatrixA, order >::type trans;
BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const<
typename bindings::value_type< MatrixA >::type >::type,
typename remove_const< typename bindings::value_type<
VectorTAU >::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<
MatrixC >::type >::type >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< MatrixC >::value) );
BOOST_ASSERT( bindings::size(work.select(value_type())) >=
min_size_work( side, bindings::size_row(c),
bindings::size_column(c) ));
BOOST_ASSERT( bindings::size_column(c) >= 0 );
BOOST_ASSERT( bindings::size_minor(a) == 1 ||
bindings::stride_minor(a) == 1 );
BOOST_ASSERT( bindings::size_minor(c) == 1 ||
bindings::stride_minor(c) == 1 );
BOOST_ASSERT( bindings::size_row(c) >= 0 );
BOOST_ASSERT( bindings::stride_major(c) >= std::max< std::ptrdiff_t >(1,
bindings::size_row(c)) );
BOOST_ASSERT( k >= 0 );
BOOST_ASSERT( vect == 'Q' || vect == 'P' );
return detail::unmbr( vect, side, trans(), bindings::size_row(c),
bindings::size_column(c), k, bindings::begin_value(a),
bindings::stride_major(a), bindings::begin_value(tau),
bindings::begin_value(c), bindings::stride_major(c),
bindings::begin_value(work.select(value_type())),
bindings::size(work.select(value_type())) );
}
//
// 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 Side, typename MatrixA, typename VectorTAU,
typename MatrixC >
static std::ptrdiff_t invoke( const char vect, const Side side,
const fortran_int_t k, const MatrixA& a, const VectorTAU& tau,
MatrixC& c, minimal_workspace ) {
namespace bindings = ::boost::numeric::bindings;
typedef typename result_of::data_order< MatrixC >::type order;
typedef typename result_of::trans_tag< MatrixA, order >::type trans;
bindings::detail::array< value_type > tmp_work( min_size_work( side,
bindings::size_row(c), bindings::size_column(c) ) );
return invoke( vect, side, k, a, tau, c, workspace( tmp_work ) );
}
//
// 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 Side, typename MatrixA, typename VectorTAU,
typename MatrixC >
static std::ptrdiff_t invoke( const char vect, const Side side,
const fortran_int_t k, const MatrixA& a, const VectorTAU& tau,
MatrixC& c, optimal_workspace ) {
namespace bindings = ::boost::numeric::bindings;
typedef typename result_of::data_order< MatrixC >::type order;
typedef typename result_of::trans_tag< MatrixA, order >::type trans;
value_type opt_size_work;
detail::unmbr( vect, side, trans(), bindings::size_row(c),
bindings::size_column(c), k, bindings::begin_value(a),
bindings::stride_major(a), bindings::begin_value(tau),
bindings::begin_value(c), bindings::stride_major(c),
&opt_size_work, -1 );
bindings::detail::array< value_type > tmp_work(
traits::detail::to_int( opt_size_work ) );
return invoke( vect, side, k, a, tau, c, workspace( tmp_work ) );
}
//
// Static member function that returns the minimum size of
// workspace-array work.
//
template< typename Side >
static std::ptrdiff_t min_size_work( const Side side,
const std::ptrdiff_t m, const std::ptrdiff_t n ) {
return std::max< std::ptrdiff_t >( 1, bindings::detail::if_left( side,
n, m ) );
}
};
//
// 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 unmbr_impl classes. In the
// documentation, most overloads are collapsed to avoid a large number of
// prototypes which are very similar.
//
//
// Overloaded function for unmbr. Its overload differs for
// * User-defined workspace
//
template< typename Side, typename MatrixA, typename VectorTAU,
typename MatrixC, typename Workspace >
inline typename boost::enable_if< detail::is_workspace< Workspace >,
std::ptrdiff_t >::type
unmbr( const char vect, const Side side, const MatrixA& a,
const VectorTAU& tau, MatrixC& c, Workspace work ) {
return unmbr_impl< typename bindings::value_type<
MatrixA >::type >::invoke( vect, side, a, tau, c, work );
}
//
// Overloaded function for unmbr. Its overload differs for
// * Default workspace-type (optimal)
//
template< typename Side, typename MatrixA, typename VectorTAU,
typename MatrixC >
inline typename boost::disable_if< detail::is_workspace< MatrixC >,
std::ptrdiff_t >::type
unmbr( const char vect, const Side side, const MatrixA& a,
const VectorTAU& tau, MatrixC& c ) {
return unmbr_impl< typename bindings::value_type<
MatrixA >::type >::invoke( vect, side, a, tau, c,
optimal_workspace() );
}
//
// Overloaded function for unmbr. Its overload differs for
// * User-defined workspace
//
template< typename Side, typename MatrixA, typename VectorTAU,
typename MatrixC, typename Workspace >
inline typename boost::enable_if< detail::is_workspace< Workspace >,
std::ptrdiff_t >::type
unmbr( const char vect, const Side side, const fortran_int_t k,
const MatrixA& a, const VectorTAU& tau, MatrixC& c, Workspace work ) {
return unmbr_impl< typename bindings::value_type<
MatrixA >::type >::invoke( vect, side, k, a, tau, c, work );
}
//
// Overloaded function for unmbr. Its overload differs for
// * Default workspace-type (optimal)
//
template< typename Side, typename MatrixA, typename VectorTAU,
typename MatrixC >
inline typename boost::disable_if< detail::is_workspace< MatrixC >,
std::ptrdiff_t >::type
unmbr( const char vect, const Side side, const fortran_int_t k,
const MatrixA& a, const VectorTAU& tau, MatrixC& c ) {
return unmbr_impl< typename bindings::value_type<
MatrixA >::type >::invoke( vect, side, k, a, tau, c,
optimal_workspace() );
}
} // namespace lapack
} // namespace bindings
} // namespace numeric
} // namespace boost
#endif
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