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230 lines
8.2 KiB
230 lines
8.2 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_COMPUTATIONAL_PTTRS_HPP
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#define BOOST_NUMERIC_BINDINGS_LAPACK_COMPUTATIONAL_PTTRS_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 pttrs 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 pttrs( const fortran_int_t n, const fortran_int_t nrhs,
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const float* d, const float* e, float* b, const fortran_int_t ldb ) {
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fortran_int_t info(0);
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LAPACK_SPTTRS( &n, &nrhs, d, e, b, &ldb, &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 pttrs( const fortran_int_t n, const fortran_int_t nrhs,
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const double* d, const double* e, double* b,
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const fortran_int_t ldb ) {
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fortran_int_t info(0);
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LAPACK_DPTTRS( &n, &nrhs, d, e, b, &ldb, &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 pttrs( const char uplo, const fortran_int_t n,
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const fortran_int_t nrhs, const float* d,
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const std::complex<float>* e, std::complex<float>* b,
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const fortran_int_t ldb ) {
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fortran_int_t info(0);
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LAPACK_CPTTRS( &uplo, &n, &nrhs, d, e, b, &ldb, &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 pttrs( const char uplo, const fortran_int_t n,
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const fortran_int_t nrhs, const double* d,
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const std::complex<double>* e, std::complex<double>* b,
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const fortran_int_t ldb ) {
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fortran_int_t info(0);
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LAPACK_ZPTTRS( &uplo, &n, &nrhs, d, e, b, &ldb, &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 pttrs.
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//
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template< typename Value, typename Enable = void >
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struct pttrs_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 pttrs_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 VectorD, typename VectorE, typename MatrixB >
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static std::ptrdiff_t invoke( const VectorD& d, const VectorE& e,
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MatrixB& b ) {
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namespace bindings = ::boost::numeric::bindings;
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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< VectorD >::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< VectorD >::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( (bindings::is_mutable< MatrixB >::value) );
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BOOST_ASSERT( bindings::size(d) >= bindings::size(d) );
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BOOST_ASSERT( bindings::size(d) >= 0 );
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BOOST_ASSERT( bindings::size(e) >= bindings::size(d)-1 );
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BOOST_ASSERT( bindings::size_column(b) >= 0 );
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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::stride_major(b) >= std::max< std::ptrdiff_t >(1,
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bindings::size(d)) );
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return detail::pttrs( bindings::size(d), bindings::size_column(b),
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bindings::begin_value(d), bindings::begin_value(e),
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bindings::begin_value(b), bindings::stride_major(b) );
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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 pttrs_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 VectorD, typename VectorE, typename MatrixB >
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static std::ptrdiff_t invoke( const char uplo, const VectorD& d,
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const VectorE& e, MatrixB& b ) {
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namespace bindings = ::boost::numeric::bindings;
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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< VectorE >::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( (bindings::is_mutable< MatrixB >::value) );
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BOOST_ASSERT( bindings::size(d) >= bindings::size(d) );
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BOOST_ASSERT( bindings::size(d) >= 0 );
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BOOST_ASSERT( bindings::size_column(b) >= 0 );
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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::stride_major(b) >= std::max< std::ptrdiff_t >(1,
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bindings::size(d)) );
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return detail::pttrs( uplo, bindings::size(d),
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bindings::size_column(b), bindings::begin_value(d),
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bindings::begin_value(e), bindings::begin_value(b),
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bindings::stride_major(b) );
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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 pttrs_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 pttrs. Its overload differs for
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//
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template< typename VectorD, typename VectorE, typename MatrixB >
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inline std::ptrdiff_t pttrs( const VectorD& d, const VectorE& e,
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MatrixB& b ) {
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return pttrs_impl< typename bindings::value_type<
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VectorE >::type >::invoke( d, e, b );
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}
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//
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// Overloaded function for pttrs. Its overload differs for
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//
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template< typename VectorD, typename VectorE, typename MatrixB >
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inline std::ptrdiff_t pttrs( const char uplo, const VectorD& d,
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const VectorE& e, MatrixB& b ) {
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return pttrs_impl< typename bindings::value_type<
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VectorE >::type >::invoke( uplo, d, e, b );
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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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