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sptrd.hpp
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sptrd.hpp
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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_SPTRD_HPP
#define BOOST_NUMERIC_BINDINGS_LAPACK_COMPUTATIONAL_SPTRD_HPP
#include <boost/assert.hpp>
#include <Core/Utils/numeric/bindings/begin.hpp>
#include <Core/Utils/numeric/bindings/is_mutable.hpp>
#include <Core/Utils/numeric/bindings/remove_imaginary.hpp>
#include <Core/Utils/numeric/bindings/size.hpp>
#include <Core/Utils/numeric/bindings/stride.hpp>
#include <Core/Utils/numeric/bindings/uplo_tag.hpp>
#include <Core/Utils/numeric/bindings/value_type.hpp>
#include <boost/static_assert.hpp>
#include <boost/type_traits/is_same.hpp>
#include <boost/type_traits/remove_const.hpp>
//
// The LAPACK-backend for sptrd is the netlib-compatible backend.
//
#include <Core/Utils/numeric/bindings/lapack/detail/lapack.h>
#include <Core/Utils/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 UpLo >
inline std::ptrdiff_t sptrd( const UpLo, const fortran_int_t n, float* ap,
float* d, float* e, float* tau ) {
fortran_int_t info(0);
LAPACK_SSPTRD( &lapack_option< UpLo >::value, &n, ap, d, e, tau, &info );
return info;
}
//
// Overloaded function for dispatching to
// * netlib-compatible LAPACK backend (the default), and
// * double value-type.
//
template< typename UpLo >
inline std::ptrdiff_t sptrd( const UpLo, const fortran_int_t n, double* ap,
double* d, double* e, double* tau ) {
fortran_int_t info(0);
LAPACK_DSPTRD( &lapack_option< UpLo >::value, &n, ap, d, e, tau, &info );
return info;
}
} // namespace detail
//
// Value-type based template class. Use this class if you need a type
// for dispatching to sptrd.
//
template< typename Value >
struct sptrd_impl {
typedef Value value_type;
typedef typename remove_imaginary< Value >::type real_type;
//
// Static member function, that
// * Deduces the required arguments for dispatching to LAPACK, and
// * Asserts that most arguments make sense.
//
template< typename MatrixAP, typename VectorD, typename VectorE,
typename VectorTAU >
static std::ptrdiff_t invoke( MatrixAP& ap, VectorD& d, VectorE& e,
VectorTAU& tau ) {
namespace bindings = ::boost::numeric::bindings;
typedef typename result_of::uplo_tag< MatrixAP >::type uplo;
BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const<
typename bindings::value_type< MatrixAP >::type >::type,
typename remove_const< typename bindings::value_type<
VectorD >::type >::type >::value) );
BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const<
typename bindings::value_type< MatrixAP >::type >::type,
typename remove_const< typename bindings::value_type<
VectorE >::type >::type >::value) );
BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const<
typename bindings::value_type< MatrixAP >::type >::type,
typename remove_const< typename bindings::value_type<
VectorTAU >::type >::type >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< MatrixAP >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorD >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorE >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorTAU >::value) );
BOOST_ASSERT( bindings::size(d) >= bindings::size_column(ap) );
BOOST_ASSERT( bindings::size(tau) >= bindings::size_column(ap)-1 );
BOOST_ASSERT( bindings::size_column(ap) >= 0 );
return detail::sptrd( uplo(), bindings::size_column(ap),
bindings::begin_value(ap), bindings::begin_value(d),
bindings::begin_value(e), bindings::begin_value(tau) );
}
};
//
// 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 sptrd_impl classes. In the
// documentation, most overloads are collapsed to avoid a large number of
// prototypes which are very similar.
//
//
// Overloaded function for sptrd. Its overload differs for
//
template< typename MatrixAP, typename VectorD, typename VectorE,
typename VectorTAU >
inline std::ptrdiff_t sptrd( MatrixAP& ap, VectorD& d, VectorE& e,
VectorTAU& tau ) {
return sptrd_impl< typename bindings::value_type<
MatrixAP >::type >::invoke( ap, d, e, tau );
}
} // namespace lapack
} // namespace bindings
} // namespace numeric
} // namespace boost
#endif