//
// 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_BLAS_LEVEL2_GERU_HPP
#define BOOST_NUMERIC_BINDINGS_BLAS_LEVEL2_GERU_HPP

#include <boost/assert.hpp>
#include <Core/Utils/numeric/bindings/begin.hpp>
#include <Core/Utils/numeric/bindings/data_order.hpp>
#include <Core/Utils/numeric/bindings/has_linear_array.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/value_type.hpp>
#include <boost/static_assert.hpp>
#include <boost/type_traits/is_same.hpp>
#include <boost/type_traits/remove_const.hpp>

//
// The BLAS-backend is selected by defining a pre-processor variable,
//  which can be one of
// * for CBLAS, define BOOST_NUMERIC_BINDINGS_BLAS_CBLAS
// * for CUBLAS, define BOOST_NUMERIC_BINDINGS_BLAS_CUBLAS
// * netlib-compatible BLAS is the default
//
#if defined BOOST_NUMERIC_BINDINGS_BLAS_CBLAS
#include <Core/Utils/numeric/bindings/blas/detail/cblas.h>
#include <Core/Utils/numeric/bindings/blas/detail/cblas_option.hpp>
#elif defined BOOST_NUMERIC_BINDINGS_BLAS_CUBLAS
#include <Core/Utils/numeric/bindings/blas/detail/cublas.h>
#include <Core/Utils/numeric/bindings/blas/detail/blas_option.hpp>
#else
#include <Core/Utils/numeric/bindings/blas/detail/blas.h>
#include <Core/Utils/numeric/bindings/blas/detail/blas_option.hpp>
#endif

namespace boost
{
    namespace numeric
    {
        namespace bindings
        {
            namespace blas
            {
                //
                // The detail namespace contains value-type-overloaded functions that
                // dispatch to the appropriate back-end BLAS-routine.
                //
                namespace detail
                {
#if defined BOOST_NUMERIC_BINDINGS_BLAS_CBLAS
                    //
                    // Overloaded function for dispatching to
                    // * CBLAS backend, and
                    // * complex<float> value-type.
//
template< typename Order >
inline void geru( const Order, const int m, const int n,
        const std::complex<float> alpha, const std::complex<float>* x,
        const int incx, const std::complex<float>* y, const int incy,
        std::complex<float>* a, const int lda ) {
    cblas_cgeru( cblas_option< Order >::value, m, n, &alpha, x, incx, y, incy,
            a, lda );
}

//
                    // Overloaded function for dispatching to
                    // * CBLAS backend, and
                    // * complex<double> value-type.
//
template< typename Order >
inline void geru( const Order, const int m, const int n,
        const std::complex<double> alpha, const std::complex<double>* x,
        const int incx, const std::complex<double>* y, const int incy,
        std::complex<double>* a, const int lda ) {
    cblas_zgeru( cblas_option< Order >::value, m, n, &alpha, x, incx, y, incy,
            a, lda );
}

#elif defined BOOST_NUMERIC_BINDINGS_BLAS_CUBLAS
                    //
                    // Overloaded function for dispatching to
                    // * CUBLAS backend, and
                    // * complex<float> value-type.
//
template< typename Order >
inline void geru( const Order, const int m, const int n,
        const std::complex<float> alpha, const std::complex<float>* x,
        const int incx, const std::complex<float>* y, const int incy,
        std::complex<float>* a, const int lda ) {
    BOOST_STATIC_ASSERT( (is_same<Order, tag::column_major>::value) );
    cublasCgeru( m, n, alpha, x, incx, y, incy, a, lda );
}

//
                    // Overloaded function for dispatching to
                    // * CUBLAS backend, and
                    // * complex<double> value-type.
//
template< typename Order >
inline void geru( const Order, const int m, const int n,
        const std::complex<double> alpha, const std::complex<double>* x,
        const int incx, const std::complex<double>* y, const int incy,
        std::complex<double>* a, const int lda ) {
    BOOST_STATIC_ASSERT( (is_same<Order, tag::column_major>::value) );
    cublasZgeru( m, n, alpha, x, incx, y, incy, a, lda );
}

#else
                    //
                    // Overloaded function for dispatching to
                    // * netlib-compatible BLAS backend (the default), and
                    // * complex<float> value-type.
                    //
                    template <typename Order>
                    inline void geru(const Order, const fortran_int_t m, const fortran_int_t n,
                                     const std::complex<float> alpha, const std::complex<float>* x,
                                     const fortran_int_t incx, const std::complex<float>* y,
                                     const fortran_int_t incy, std::complex<float>* a,
                                     const fortran_int_t lda)
                    {
                        BOOST_STATIC_ASSERT((is_same<Order, tag::column_major>::value));
                        BLAS_CGERU(&m, &n, &alpha, x, &incx, y, &incy, a, &lda);
                    }

                    //
                    // Overloaded function for dispatching to
                    // * netlib-compatible BLAS backend (the default), and
                    // * complex<double> value-type.
                    //
                    template <typename Order>
                    inline void geru(const Order, const fortran_int_t m, const fortran_int_t n,
                                     const std::complex<double> alpha, const std::complex<double>* x,
                                     const fortran_int_t incx, const std::complex<double>* y,
                                     const fortran_int_t incy, std::complex<double>* a,
                                     const fortran_int_t lda)
                    {
                        BOOST_STATIC_ASSERT((is_same<Order, tag::column_major>::value));
                        BLAS_ZGERU(&m, &n, &alpha, x, &incx, y, &incy, a, &lda);
                    }

#endif
                } // namespace detail

                //
                // Value-type based template class. Use this class if you need a type
                // for dispatching to geru.
                //
                template <typename Value>
                struct geru_impl
                {
                    typedef Value value_type;
                    typedef typename remove_imaginary<Value>::type real_type;
                    typedef void result_type;

                    //
                    // Static member function that
                    // * Deduces the required arguments for dispatching to BLAS, and
                    // * Asserts that most arguments make sense.
                    //
                    template <typename VectorX, typename VectorY, typename MatrixA>
                    static result_type invoke(const value_type alpha, const VectorX& x,
                                              const VectorY& y, MatrixA& a)
                    {
                        namespace bindings = ::boost::numeric::bindings;
                        typedef typename result_of::data_order<MatrixA>::type order;
                        BOOST_STATIC_ASSERT((is_same<typename remove_const<
                                                         typename bindings::value_type<VectorX>::type>::type,
                                                     typename remove_const<typename bindings::value_type<
                                                         VectorY>::type>::type>::value));
                        BOOST_STATIC_ASSERT((is_same<typename remove_const<
                                                         typename bindings::value_type<VectorX>::type>::type,
                                                     typename remove_const<typename bindings::value_type<
                                                         MatrixA>::type>::type>::value));
                        BOOST_STATIC_ASSERT((bindings::has_linear_array<MatrixA>::value));
                        BOOST_STATIC_ASSERT((bindings::has_linear_array<VectorX>::value));
                        BOOST_STATIC_ASSERT((bindings::has_linear_array<VectorY>::value));
                        BOOST_STATIC_ASSERT((bindings::is_mutable<MatrixA>::value));
                        BOOST_ASSERT(bindings::size_minor(a) == 1 ||
                            bindings::stride_minor(a) == 1);
                        detail::geru(order(), bindings::size_row(a),
                                     bindings::size_column(a), alpha, bindings::begin_value(x),
                                     bindings::stride(x), bindings::begin_value(y),
                                     bindings::stride(y), bindings::begin_value(a),
                                     bindings::stride_major(a));
                    }
                };

                //
                // Functions for direct use. These functions are overloaded for temporaries,
                // so that wrapped types can still be passed and used for write-access. Calls
                // to these functions are passed to the geru_impl classes. In the
                // documentation, the const-overloads are collapsed to avoid a large number of
                // prototypes which are very similar.
                //

                //
                // Overloaded function for geru. Its overload differs for
                //
                template <typename VectorX, typename VectorY, typename MatrixA>
                inline typename geru_impl<typename bindings::value_type<
                    VectorX>::type>::result_type
                geru(const typename bindings::value_type<VectorX>::type alpha,
                     const VectorX& x, const VectorY& y, MatrixA& a)
                {
                    geru_impl<typename bindings::value_type<
                        VectorX>::type>::invoke(alpha, x, y, a);
                }
            } // namespace blas
        } // namespace bindings
    } // namespace numeric
} // namespace boost

#endif
