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252 lines
9.9 KiB
252 lines
9.9 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_LATRD_HPP
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#define BOOST_NUMERIC_BINDINGS_LAPACK_AUXILIARY_LATRD_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/is_column_major.hpp>
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#include <boost/numeric/bindings/is_complex.hpp>
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#include <boost/numeric/bindings/is_mutable.hpp>
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#include <boost/numeric/bindings/is_real.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/uplo_tag.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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#include <boost/utility/enable_if.hpp>
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//
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// The LAPACK-backend for latrd 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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template< typename UpLo >
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inline std::ptrdiff_t latrd( const UpLo, const fortran_int_t n,
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const fortran_int_t nb, float* a, const fortran_int_t lda, float* e,
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float* tau, float* w, const fortran_int_t ldw ) {
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fortran_int_t info(0);
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LAPACK_SLATRD( &lapack_option< UpLo >::value, &n, &nb, a, &lda, e, tau, w,
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&ldw );
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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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template< typename UpLo >
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inline std::ptrdiff_t latrd( const UpLo, const fortran_int_t n,
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const fortran_int_t nb, double* a, const fortran_int_t lda, double* e,
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double* tau, double* w, const fortran_int_t ldw ) {
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fortran_int_t info(0);
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LAPACK_DLATRD( &lapack_option< UpLo >::value, &n, &nb, a, &lda, e, tau, w,
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&ldw );
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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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// * complex<float> value-type.
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//
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template< typename UpLo >
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inline std::ptrdiff_t latrd( const UpLo, const fortran_int_t n,
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const fortran_int_t nb, std::complex<float>* a,
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const fortran_int_t lda, float* e, std::complex<float>* tau,
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std::complex<float>* w, const fortran_int_t ldw ) {
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fortran_int_t info(0);
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LAPACK_CLATRD( &lapack_option< UpLo >::value, &n, &nb, a, &lda, e, tau, w,
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&ldw );
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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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// * complex<double> value-type.
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//
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template< typename UpLo >
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inline std::ptrdiff_t latrd( const UpLo, const fortran_int_t n,
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const fortran_int_t nb, std::complex<double>* a,
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const fortran_int_t lda, double* e, std::complex<double>* tau,
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std::complex<double>* w, const fortran_int_t ldw ) {
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fortran_int_t info(0);
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LAPACK_ZLATRD( &lapack_option< UpLo >::value, &n, &nb, a, &lda, e, tau, w,
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&ldw );
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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 latrd.
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//
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template< typename Value, typename Enable = void >
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struct latrd_impl {};
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//
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// This implementation is enabled if Value is a real type.
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//
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template< typename Value >
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struct latrd_impl< Value, typename boost::enable_if< is_real< Value > >::type > {
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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, 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 MatrixA, typename VectorE, typename VectorTAU,
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typename MatrixW >
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static std::ptrdiff_t invoke( const fortran_int_t nb, MatrixA& a,
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VectorE& e, VectorTAU& tau, MatrixW& w ) {
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namespace bindings = ::boost::numeric::bindings;
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typedef typename result_of::uplo_tag< MatrixA >::type uplo;
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BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixA >::value) );
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BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixW >::value) );
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BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const<
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typename bindings::value_type< MatrixA >::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< MatrixA >::type >::type,
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typename remove_const< typename bindings::value_type<
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VectorTAU >::type >::type >::value) );
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BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const<
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typename bindings::value_type< MatrixA >::type >::type,
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typename remove_const< typename bindings::value_type<
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MatrixW >::type >::type >::value) );
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BOOST_STATIC_ASSERT( (bindings::is_mutable< MatrixA >::value) );
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BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorE >::value) );
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BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorTAU >::value) );
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BOOST_STATIC_ASSERT( (bindings::is_mutable< MatrixW >::value) );
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BOOST_ASSERT( bindings::size_minor(a) == 1 ||
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bindings::stride_minor(a) == 1 );
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BOOST_ASSERT( bindings::size_minor(w) == 1 ||
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bindings::stride_minor(w) == 1 );
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BOOST_ASSERT( bindings::stride_major(a) >= std::max< std::ptrdiff_t >(1,
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bindings::size_column(a)) );
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BOOST_ASSERT( bindings::stride_major(w) >= std::max< std::ptrdiff_t >(1,
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bindings::size_column(a)) );
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return detail::latrd( uplo(), bindings::size_column(a), nb,
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bindings::begin_value(a), bindings::stride_major(a),
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bindings::begin_value(e), bindings::begin_value(tau),
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bindings::begin_value(w), bindings::stride_major(w) );
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}
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};
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//
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// This implementation is enabled if Value is a complex type.
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//
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template< typename Value >
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struct latrd_impl< Value, typename boost::enable_if< is_complex< Value > >::type > {
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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, 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 MatrixA, typename VectorE, typename VectorTAU,
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typename MatrixW >
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static std::ptrdiff_t invoke( const fortran_int_t nb, MatrixA& a,
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VectorE& e, VectorTAU& tau, MatrixW& w ) {
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namespace bindings = ::boost::numeric::bindings;
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typedef typename result_of::uplo_tag< MatrixA >::type uplo;
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BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixA >::value) );
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BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixW >::value) );
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BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const<
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typename bindings::value_type< MatrixA >::type >::type,
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typename remove_const< typename bindings::value_type<
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VectorTAU >::type >::type >::value) );
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BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const<
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typename bindings::value_type< MatrixA >::type >::type,
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typename remove_const< typename bindings::value_type<
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MatrixW >::type >::type >::value) );
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BOOST_STATIC_ASSERT( (bindings::is_mutable< MatrixA >::value) );
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BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorE >::value) );
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BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorTAU >::value) );
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BOOST_STATIC_ASSERT( (bindings::is_mutable< MatrixW >::value) );
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BOOST_ASSERT( bindings::size_minor(a) == 1 ||
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bindings::stride_minor(a) == 1 );
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BOOST_ASSERT( bindings::size_minor(w) == 1 ||
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bindings::stride_minor(w) == 1 );
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BOOST_ASSERT( bindings::stride_major(a) >= std::max< std::ptrdiff_t >(1,
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bindings::size_column(a)) );
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BOOST_ASSERT( bindings::stride_major(w) >= std::max< std::ptrdiff_t >(1,
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bindings::size_column(a)) );
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return detail::latrd( uplo(), bindings::size_column(a), nb,
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bindings::begin_value(a), bindings::stride_major(a),
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bindings::begin_value(e), bindings::begin_value(tau),
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bindings::begin_value(w), bindings::stride_major(w) );
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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 latrd_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 latrd. Its overload differs for
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//
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template< typename MatrixA, typename VectorE, typename VectorTAU,
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typename MatrixW >
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inline std::ptrdiff_t latrd( const fortran_int_t nb, MatrixA& a,
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VectorE& e, VectorTAU& tau, MatrixW& w ) {
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return latrd_impl< typename bindings::value_type<
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MatrixA >::type >::invoke( nb, a, e, tau, w );
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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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