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407 lines
18 KiB
407 lines
18 KiB
// |
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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_DRIVER_GGGLM_HPP |
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#define BOOST_NUMERIC_BINDINGS_LAPACK_DRIVER_GGGLM_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/detail/array.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/lapack/workspace.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/traits/detail/utils.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 ggglm 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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inline std::ptrdiff_t ggglm( const fortran_int_t n, const fortran_int_t m, |
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const fortran_int_t p, float* a, const fortran_int_t lda, float* b, |
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const fortran_int_t ldb, float* d, float* x, float* y, float* work, |
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const fortran_int_t lwork ) { |
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fortran_int_t info(0); |
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LAPACK_SGGGLM( &n, &m, &p, a, &lda, b, &ldb, d, x, y, work, &lwork, |
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&info ); |
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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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inline std::ptrdiff_t ggglm( const fortran_int_t n, const fortran_int_t m, |
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const fortran_int_t p, double* a, const fortran_int_t lda, double* b, |
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const fortran_int_t ldb, double* d, double* x, double* y, |
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double* work, const fortran_int_t lwork ) { |
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fortran_int_t info(0); |
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LAPACK_DGGGLM( &n, &m, &p, a, &lda, b, &ldb, d, x, y, work, &lwork, |
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&info ); |
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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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inline std::ptrdiff_t ggglm( const fortran_int_t n, const fortran_int_t m, |
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const fortran_int_t p, std::complex<float>* a, |
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const fortran_int_t lda, std::complex<float>* b, |
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const fortran_int_t ldb, std::complex<float>* d, |
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std::complex<float>* x, std::complex<float>* y, |
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std::complex<float>* work, const fortran_int_t lwork ) { |
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fortran_int_t info(0); |
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LAPACK_CGGGLM( &n, &m, &p, a, &lda, b, &ldb, d, x, y, work, &lwork, |
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&info ); |
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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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inline std::ptrdiff_t ggglm( const fortran_int_t n, const fortran_int_t m, |
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const fortran_int_t p, std::complex<double>* a, |
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const fortran_int_t lda, std::complex<double>* b, |
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const fortran_int_t ldb, std::complex<double>* d, |
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std::complex<double>* x, std::complex<double>* y, |
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std::complex<double>* work, const fortran_int_t lwork ) { |
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fortran_int_t info(0); |
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LAPACK_ZGGGLM( &n, &m, &p, a, &lda, b, &ldb, d, x, y, work, &lwork, |
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&info ); |
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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 ggglm. |
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// |
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template< typename Value, typename Enable = void > |
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struct ggglm_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 ggglm_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 for user-defined workspaces, 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 MatrixB, typename VectorD, |
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typename VectorX, typename VectorY, typename WORK > |
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static std::ptrdiff_t invoke( MatrixA& a, MatrixB& b, VectorD& d, |
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VectorX& x, VectorY& y, detail::workspace1< WORK > work ) { |
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namespace bindings = ::boost::numeric::bindings; |
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BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixA >::value) ); |
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BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixB >::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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MatrixB >::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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VectorD >::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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VectorX >::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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VectorY >::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< MatrixB >::value) ); |
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BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorD >::value) ); |
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BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorX >::value) ); |
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BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorY >::value) ); |
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BOOST_ASSERT( bindings::size(d) >= bindings::size_row(a) ); |
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BOOST_ASSERT( bindings::size(work.select(real_type())) >= |
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min_size_work( bindings::size_row(a), |
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bindings::size_column(a), bindings::size_column(b) )); |
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BOOST_ASSERT( bindings::size(x) >= bindings::size_column(a) ); |
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BOOST_ASSERT( bindings::size(y) >= bindings::size_column(b) ); |
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BOOST_ASSERT( bindings::size_column(b) >= bindings::size_row(a)- |
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bindings::size_column(a) ); |
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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(b) == 1 || |
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bindings::stride_minor(b) == 1 ); |
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BOOST_ASSERT( bindings::size_row(a) >= 0 ); |
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BOOST_ASSERT( bindings::stride_major(a) >= std::max< std::ptrdiff_t >(1, |
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bindings::size_row(a)) ); |
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BOOST_ASSERT( bindings::stride_major(b) >= std::max< std::ptrdiff_t >(1, |
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bindings::size_row(a)) ); |
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return detail::ggglm( bindings::size_row(a), bindings::size_column(a), |
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bindings::size_column(b), bindings::begin_value(a), |
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bindings::stride_major(a), bindings::begin_value(b), |
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bindings::stride_major(b), bindings::begin_value(d), |
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bindings::begin_value(x), bindings::begin_value(y), |
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bindings::begin_value(work.select(real_type())), |
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bindings::size(work.select(real_type())) ); |
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} |
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// |
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// Static member function that |
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// * Figures out the minimal workspace requirements, and passes |
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// the results to the user-defined workspace overload of the |
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// invoke static member function |
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// * Enables the unblocked algorithm (BLAS level 2) |
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// |
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template< typename MatrixA, typename MatrixB, typename VectorD, |
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typename VectorX, typename VectorY > |
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static std::ptrdiff_t invoke( MatrixA& a, MatrixB& b, VectorD& d, |
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VectorX& x, VectorY& y, minimal_workspace ) { |
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namespace bindings = ::boost::numeric::bindings; |
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bindings::detail::array< real_type > tmp_work( min_size_work( |
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bindings::size_row(a), bindings::size_column(a), |
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bindings::size_column(b) ) ); |
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return invoke( a, b, d, x, y, workspace( tmp_work ) ); |
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} |
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// |
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// Static member function that |
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// * Figures out the optimal workspace requirements, and passes |
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// the results to the user-defined workspace overload of the |
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// invoke static member |
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// * Enables the blocked algorithm (BLAS level 3) |
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// |
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template< typename MatrixA, typename MatrixB, typename VectorD, |
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typename VectorX, typename VectorY > |
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static std::ptrdiff_t invoke( MatrixA& a, MatrixB& b, VectorD& d, |
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VectorX& x, VectorY& y, optimal_workspace ) { |
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namespace bindings = ::boost::numeric::bindings; |
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real_type opt_size_work; |
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detail::ggglm( bindings::size_row(a), bindings::size_column(a), |
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bindings::size_column(b), bindings::begin_value(a), |
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bindings::stride_major(a), bindings::begin_value(b), |
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bindings::stride_major(b), bindings::begin_value(d), |
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bindings::begin_value(x), bindings::begin_value(y), |
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&opt_size_work, -1 ); |
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bindings::detail::array< real_type > tmp_work( |
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traits::detail::to_int( opt_size_work ) ); |
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return invoke( a, b, d, x, y, workspace( tmp_work ) ); |
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} |
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// |
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// Static member function that returns the minimum size of |
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// workspace-array work. |
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// |
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static std::ptrdiff_t min_size_work( const std::ptrdiff_t n, |
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const std::ptrdiff_t m, const std::ptrdiff_t p ) { |
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return std::max< std::ptrdiff_t >(1,n+m+p); |
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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 ggglm_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 for user-defined workspaces, 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 MatrixB, typename VectorD, |
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typename VectorX, typename VectorY, typename WORK > |
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static std::ptrdiff_t invoke( MatrixA& a, MatrixB& b, VectorD& d, |
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VectorX& x, VectorY& y, detail::workspace1< WORK > work ) { |
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namespace bindings = ::boost::numeric::bindings; |
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BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixA >::value) ); |
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BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixB >::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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MatrixB >::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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VectorD >::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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VectorX >::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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VectorY >::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< MatrixB >::value) ); |
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BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorD >::value) ); |
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BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorX >::value) ); |
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BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorY >::value) ); |
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BOOST_ASSERT( bindings::size(d) >= bindings::size_row(a) ); |
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BOOST_ASSERT( bindings::size(work.select(value_type())) >= |
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min_size_work( bindings::size_row(a), |
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bindings::size_column(a), bindings::size_column(b) )); |
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BOOST_ASSERT( bindings::size(x) >= bindings::size_column(a) ); |
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BOOST_ASSERT( bindings::size(y) >= bindings::size_column(b) ); |
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BOOST_ASSERT( bindings::size_column(b) >= bindings::size_row(a)- |
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bindings::size_column(a) ); |
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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(b) == 1 || |
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bindings::stride_minor(b) == 1 ); |
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BOOST_ASSERT( bindings::size_row(a) >= 0 ); |
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BOOST_ASSERT( bindings::stride_major(a) >= std::max< std::ptrdiff_t >(1, |
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bindings::size_row(a)) ); |
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BOOST_ASSERT( bindings::stride_major(b) >= std::max< std::ptrdiff_t >(1, |
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bindings::size_row(a)) ); |
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return detail::ggglm( bindings::size_row(a), bindings::size_column(a), |
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bindings::size_column(b), bindings::begin_value(a), |
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bindings::stride_major(a), bindings::begin_value(b), |
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bindings::stride_major(b), bindings::begin_value(d), |
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bindings::begin_value(x), bindings::begin_value(y), |
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bindings::begin_value(work.select(value_type())), |
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bindings::size(work.select(value_type())) ); |
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} |
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// |
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// Static member function that |
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// * Figures out the minimal workspace requirements, and passes |
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// the results to the user-defined workspace overload of the |
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// invoke static member function |
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// * Enables the unblocked algorithm (BLAS level 2) |
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// |
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template< typename MatrixA, typename MatrixB, typename VectorD, |
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typename VectorX, typename VectorY > |
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static std::ptrdiff_t invoke( MatrixA& a, MatrixB& b, VectorD& d, |
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VectorX& x, VectorY& y, minimal_workspace ) { |
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namespace bindings = ::boost::numeric::bindings; |
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bindings::detail::array< value_type > tmp_work( min_size_work( |
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bindings::size_row(a), bindings::size_column(a), |
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bindings::size_column(b) ) ); |
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return invoke( a, b, d, x, y, workspace( tmp_work ) ); |
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} |
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// |
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// Static member function that |
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// * Figures out the optimal workspace requirements, and passes |
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// the results to the user-defined workspace overload of the |
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// invoke static member |
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// * Enables the blocked algorithm (BLAS level 3) |
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// |
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template< typename MatrixA, typename MatrixB, typename VectorD, |
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typename VectorX, typename VectorY > |
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static std::ptrdiff_t invoke( MatrixA& a, MatrixB& b, VectorD& d, |
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VectorX& x, VectorY& y, optimal_workspace ) { |
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namespace bindings = ::boost::numeric::bindings; |
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value_type opt_size_work; |
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detail::ggglm( bindings::size_row(a), bindings::size_column(a), |
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bindings::size_column(b), bindings::begin_value(a), |
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bindings::stride_major(a), bindings::begin_value(b), |
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bindings::stride_major(b), bindings::begin_value(d), |
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bindings::begin_value(x), bindings::begin_value(y), |
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&opt_size_work, -1 ); |
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bindings::detail::array< value_type > tmp_work( |
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traits::detail::to_int( opt_size_work ) ); |
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return invoke( a, b, d, x, y, workspace( tmp_work ) ); |
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} |
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// |
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// Static member function that returns the minimum size of |
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// workspace-array work. |
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// |
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static std::ptrdiff_t min_size_work( const std::ptrdiff_t n, |
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const std::ptrdiff_t m, const std::ptrdiff_t p ) { |
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return std::max< std::ptrdiff_t >(1,n+m+p); |
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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 ggglm_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 ggglm. Its overload differs for |
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// * User-defined workspace |
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// |
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template< typename MatrixA, typename MatrixB, typename VectorD, |
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typename VectorX, typename VectorY, typename Workspace > |
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inline typename boost::enable_if< detail::is_workspace< Workspace >, |
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std::ptrdiff_t >::type |
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ggglm( MatrixA& a, MatrixB& b, VectorD& d, VectorX& x, VectorY& y, |
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Workspace work ) { |
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return ggglm_impl< typename bindings::value_type< |
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MatrixA >::type >::invoke( a, b, d, x, y, work ); |
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} |
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// |
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// Overloaded function for ggglm. Its overload differs for |
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// * Default workspace-type (optimal) |
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// |
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template< typename MatrixA, typename MatrixB, typename VectorD, |
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typename VectorX, typename VectorY > |
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inline typename boost::disable_if< detail::is_workspace< VectorY >, |
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std::ptrdiff_t >::type |
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ggglm( MatrixA& a, MatrixB& b, VectorD& d, VectorX& x, VectorY& y ) { |
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return ggglm_impl< typename bindings::value_type< |
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MatrixA >::type >::invoke( a, b, d, x, y, optimal_workspace() ); |
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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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