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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_GBTRF_HPP
#define BOOST_NUMERIC_BINDINGS_LAPACK_COMPUTATIONAL_GBTRF_HPP
#include <boost/assert.hpp>
#include <boost/numeric/bindings/bandwidth.hpp>
#include <boost/numeric/bindings/begin.hpp>
#include <boost/numeric/bindings/is_column_major.hpp>
#include <boost/numeric/bindings/is_mutable.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>
//
// The LAPACK-backend for gbtrf 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 gbtrf( const fortran_int_t m, const fortran_int_t n,
const fortran_int_t kl, const fortran_int_t ku, float* ab,
const fortran_int_t ldab, fortran_int_t* ipiv ) {
fortran_int_t info(0);
LAPACK_SGBTRF( &m, &n, &kl, &ku, ab, &ldab, ipiv, &info );
return info;
}
//
// Overloaded function for dispatching to
// * netlib-compatible LAPACK backend (the default), and
// * double value-type.
//
inline std::ptrdiff_t gbtrf( const fortran_int_t m, const fortran_int_t n,
const fortran_int_t kl, const fortran_int_t ku, double* ab,
const fortran_int_t ldab, fortran_int_t* ipiv ) {
fortran_int_t info(0);
LAPACK_DGBTRF( &m, &n, &kl, &ku, ab, &ldab, ipiv, &info );
return info;
}
//
// Overloaded function for dispatching to
// * netlib-compatible LAPACK backend (the default), and
// * complex<float> value-type.
//
inline std::ptrdiff_t gbtrf( const fortran_int_t m, const fortran_int_t n,
const fortran_int_t kl, const fortran_int_t ku,
std::complex<float>* ab, const fortran_int_t ldab,
fortran_int_t* ipiv ) {
fortran_int_t info(0);
LAPACK_CGBTRF( &m, &n, &kl, &ku, ab, &ldab, ipiv, &info );
return info;
}
//
// Overloaded function for dispatching to
// * netlib-compatible LAPACK backend (the default), and
// * complex<double> value-type.
//
inline std::ptrdiff_t gbtrf( const fortran_int_t m, const fortran_int_t n,
const fortran_int_t kl, const fortran_int_t ku,
std::complex<double>* ab, const fortran_int_t ldab,
fortran_int_t* ipiv ) {
fortran_int_t info(0);
LAPACK_ZGBTRF( &m, &n, &kl, &ku, ab, &ldab, ipiv, &info );
return info;
}
} // namespace detail
//
// Value-type based template class. Use this class if you need a type
// for dispatching to gbtrf.
//
template< typename Value >
struct gbtrf_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 MatrixAB, typename VectorIPIV >
static std::ptrdiff_t invoke( MatrixAB& ab, VectorIPIV& ipiv ) {
namespace bindings = ::boost::numeric::bindings;
BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixAB >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< MatrixAB >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorIPIV >::value) );
BOOST_ASSERT( bindings::bandwidth_lower(ab) >= 0 );
BOOST_ASSERT( bindings::size(ipiv) >= std::min<
std::ptrdiff_t >(bindings::size_row(ab),
bindings::size_column(ab)) );
BOOST_ASSERT( bindings::size_column(ab) >= 0 );
BOOST_ASSERT( bindings::size_minor(ab) == 1 ||
bindings::stride_minor(ab) == 1 );
BOOST_ASSERT( bindings::size_row(ab) >= 0 );
BOOST_ASSERT( bindings::stride_major(ab) >=
2*bindings::bandwidth_lower(ab)+(bindings::bandwidth_upper(ab)-
bindings::bandwidth_lower(ab))+1 );
BOOST_ASSERT( (bindings::bandwidth_upper(ab)-
bindings::bandwidth_lower(ab)) >= 0 );
return detail::gbtrf( bindings::size_row(ab),
bindings::size_column(ab), bindings::bandwidth_lower(ab),
(bindings::bandwidth_upper(ab)-bindings::bandwidth_lower(ab)),
bindings::begin_value(ab), bindings::stride_major(ab),
bindings::begin_value(ipiv) );
}
};
//
// 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 gbtrf_impl classes. In the
// documentation, most overloads are collapsed to avoid a large number of
// prototypes which are very similar.
//
//
// Overloaded function for gbtrf. Its overload differs for
//
template< typename MatrixAB, typename VectorIPIV >
inline std::ptrdiff_t gbtrf( MatrixAB& ab, VectorIPIV& ipiv ) {
return gbtrf_impl< typename bindings::value_type<
MatrixAB >::type >::invoke( ab, ipiv );
}
} // namespace lapack
} // namespace bindings
} // namespace numeric
} // namespace boost
#endif
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