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pbequ.hpp
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pbequ.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_PBEQU_HPP
#define BOOST_NUMERIC_BINDINGS_LAPACK_COMPUTATIONAL_PBEQU_HPP
#include <boost/assert.hpp>
#include <Core/Utils/numeric/bindings/bandwidth.hpp>
#include <Core/Utils/numeric/bindings/begin.hpp>
#include <Core/Utils/numeric/bindings/is_column_major.hpp>
#include <Core/Utils/numeric/bindings/is_complex.hpp>
#include <Core/Utils/numeric/bindings/is_mutable.hpp>
#include <Core/Utils/numeric/bindings/is_real.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>
#include <boost/utility/enable_if.hpp>
//
// The LAPACK-backend for pbequ 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 pbequ( const UpLo, const fortran_int_t n,
const fortran_int_t kd, const float* ab, const fortran_int_t ldab,
float* s, float& scond, float& amax ) {
fortran_int_t info(0);
LAPACK_SPBEQU( &lapack_option< UpLo >::value, &n, &kd, ab, &ldab, s,
&scond, &amax, &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 pbequ( const UpLo, const fortran_int_t n,
const fortran_int_t kd, const double* ab, const fortran_int_t ldab,
double* s, double& scond, double& amax ) {
fortran_int_t info(0);
LAPACK_DPBEQU( &lapack_option< UpLo >::value, &n, &kd, ab, &ldab, s,
&scond, &amax, &info );
return info;
}
//
// Overloaded function for dispatching to
// * netlib-compatible LAPACK backend (the default), and
// * complex<float> value-type.
//
template< typename UpLo >
inline std::ptrdiff_t pbequ( const UpLo, const fortran_int_t n,
const fortran_int_t kd, const std::complex<float>* ab,
const fortran_int_t ldab, float* s, float& scond, float& amax ) {
fortran_int_t info(0);
LAPACK_CPBEQU( &lapack_option< UpLo >::value, &n, &kd, ab, &ldab, s,
&scond, &amax, &info );
return info;
}
//
// Overloaded function for dispatching to
// * netlib-compatible LAPACK backend (the default), and
// * complex<double> value-type.
//
template< typename UpLo >
inline std::ptrdiff_t pbequ( const UpLo, const fortran_int_t n,
const fortran_int_t kd, const std::complex<double>* ab,
const fortran_int_t ldab, double* s, double& scond, double& amax ) {
fortran_int_t info(0);
LAPACK_ZPBEQU( &lapack_option< UpLo >::value, &n, &kd, ab, &ldab, s,
&scond, &amax, &info );
return info;
}
} // namespace detail
//
// Value-type based template class. Use this class if you need a type
// for dispatching to pbequ.
//
template< typename Value, typename Enable = void >
struct pbequ_impl {};
//
// This implementation is enabled if Value is a real type.
//
template< typename Value >
struct pbequ_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, that
// * Deduces the required arguments for dispatching to LAPACK, and
// * Asserts that most arguments make sense.
//
template< typename MatrixAB, typename VectorS >
static std::ptrdiff_t invoke( const MatrixAB& ab, VectorS& s,
real_type& scond, real_type& amax ) {
namespace bindings = ::boost::numeric::bindings;
typedef typename result_of::uplo_tag< MatrixAB >::type uplo;
BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixAB >::value) );
BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const<
typename bindings::value_type< MatrixAB >::type >::type,
typename remove_const< typename bindings::value_type<
VectorS >::type >::type >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorS >::value) );
BOOST_ASSERT( bindings::bandwidth(ab, uplo()) >= 0 );
BOOST_ASSERT( bindings::size_column(ab) >= 0 );
BOOST_ASSERT( bindings::size_minor(ab) == 1 ||
bindings::stride_minor(ab) == 1 );
BOOST_ASSERT( bindings::stride_major(ab) >= bindings::bandwidth(ab,
uplo())+1 );
return detail::pbequ( uplo(), bindings::size_column(ab),
bindings::bandwidth(ab, uplo()), bindings::begin_value(ab),
bindings::stride_major(ab), bindings::begin_value(s), scond,
amax );
}
};
//
// This implementation is enabled if Value is a complex type.
//
template< typename Value >
struct pbequ_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, that
// * Deduces the required arguments for dispatching to LAPACK, and
// * Asserts that most arguments make sense.
//
template< typename MatrixAB, typename VectorS >
static std::ptrdiff_t invoke( const MatrixAB& ab, VectorS& s,
real_type& scond, real_type& amax ) {
namespace bindings = ::boost::numeric::bindings;
typedef typename result_of::uplo_tag< MatrixAB >::type uplo;
BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixAB >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorS >::value) );
BOOST_ASSERT( bindings::bandwidth(ab, uplo()) >= 0 );
BOOST_ASSERT( bindings::size_column(ab) >= 0 );
BOOST_ASSERT( bindings::size_minor(ab) == 1 ||
bindings::stride_minor(ab) == 1 );
BOOST_ASSERT( bindings::stride_major(ab) >= bindings::bandwidth(ab,
uplo())+1 );
return detail::pbequ( uplo(), bindings::size_column(ab),
bindings::bandwidth(ab, uplo()), bindings::begin_value(ab),
bindings::stride_major(ab), bindings::begin_value(s), scond,
amax );
}
};
//
// 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 pbequ_impl classes. In the
// documentation, most overloads are collapsed to avoid a large number of
// prototypes which are very similar.
//
//
// Overloaded function for pbequ. Its overload differs for
//
template< typename MatrixAB, typename VectorS >
inline std::ptrdiff_t pbequ( const MatrixAB& ab, VectorS& s,
typename remove_imaginary< typename bindings::value_type<
MatrixAB >::type >::type& scond, typename remove_imaginary<
typename bindings::value_type< MatrixAB >::type >::type& amax ) {
return pbequ_impl< typename bindings::value_type<
MatrixAB >::type >::invoke( ab, s, scond, amax );
}
} // namespace lapack
} // namespace bindings
} // namespace numeric
} // namespace boost
#endif