ClickHouse/contrib/libboost/boost_1_65_0/boost/qvm/mat.hpp

//Copyright (c) 2008-2016 Emil Dotchevski and Reverge Studios, Inc.

//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)

#ifndef UUID_67E67D68A32F11DEA56FD18556D89593
#define UUID_67E67D68A32F11DEA56FD18556D89593

#include <boost/qvm/detail/mat_assign.hpp>
#include <boost/qvm/assert.hpp>
#include <boost/qvm/static_assert.hpp>

namespace
boost
    {
    namespace
    qvm
        {
        template <class T,int Rows,int Cols>
        struct
        mat
            {
            T a[Rows][Cols];
            template <class R>
            operator R() const
                {
                R r;
                assign(r,*this);
                return r;
                }
            };

        template <class M>
        struct mat_traits;

        template <class T,int Rows,int Cols>
        struct
        mat_traits< mat<T,Rows,Cols> >
            {
            typedef mat<T,Rows,Cols> this_matrix;
            typedef T scalar_type;
            static int const rows=Rows;
            static int const cols=Cols;

            template <int Row,int Col>
            static
            BOOST_QVM_INLINE_CRITICAL
            scalar_type
            read_element( this_matrix const & x )
                {
                BOOST_QVM_STATIC_ASSERT(Row>=0);
                BOOST_QVM_STATIC_ASSERT(Row<Rows);
                BOOST_QVM_STATIC_ASSERT(Col>=0);
                BOOST_QVM_STATIC_ASSERT(Col<Cols);
                return x.a[Row][Col];
                }

            template <int Row,int Col>
            static
            BOOST_QVM_INLINE_CRITICAL
            scalar_type &
            write_element( this_matrix & x )
                {
                BOOST_QVM_STATIC_ASSERT(Row>=0);
                BOOST_QVM_STATIC_ASSERT(Row<Rows);
                BOOST_QVM_STATIC_ASSERT(Col>=0);
                BOOST_QVM_STATIC_ASSERT(Col<Cols);
                return x.a[Row][Col];
                }

            static
            BOOST_QVM_INLINE_CRITICAL
            scalar_type
            read_element_idx( int row, int col, this_matrix const & x )
                {
                BOOST_QVM_ASSERT(row>=0);
                BOOST_QVM_ASSERT(row<Rows);
                BOOST_QVM_ASSERT(col>=0);
                BOOST_QVM_ASSERT(col<Cols);
                return x.a[row][col];
                }

            static
            BOOST_QVM_INLINE_CRITICAL
            scalar_type &
            write_element_idx( int row, int col, this_matrix & x )
                {
                BOOST_QVM_ASSERT(row>=0);
                BOOST_QVM_ASSERT(row<Rows);
                BOOST_QVM_ASSERT(col>=0);
                BOOST_QVM_ASSERT(col<Cols);
                return x.a[row][col];
                }
            };
        }
    }

#endif